WO1999041392A1 - Acide nucleique comprenant la sequence d'un promoteur inductible par un stress et une sequence d'un gene codant pour une stilbene synthase - Google Patents
Acide nucleique comprenant la sequence d'un promoteur inductible par un stress et une sequence d'un gene codant pour une stilbene synthase Download PDFInfo
- Publication number
- WO1999041392A1 WO1999041392A1 PCT/FR1999/000316 FR9900316W WO9941392A1 WO 1999041392 A1 WO1999041392 A1 WO 1999041392A1 FR 9900316 W FR9900316 W FR 9900316W WO 9941392 A1 WO9941392 A1 WO 9941392A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gene
- sequence
- promoter
- plants
- plant
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/1025—Acyltransferases (2.3)
- C12N9/1029—Acyltransferases (2.3) transferring groups other than amino-acyl groups (2.3.1)
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/415—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from plants
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8216—Methods for controlling, regulating or enhancing expression of transgenes in plant cells
- C12N15/8222—Developmentally regulated expression systems, tissue, organ specific, temporal or spatial regulation
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8216—Methods for controlling, regulating or enhancing expression of transgenes in plant cells
- C12N15/8222—Developmentally regulated expression systems, tissue, organ specific, temporal or spatial regulation
- C12N15/8223—Vegetative tissue-specific promoters
- C12N15/8227—Root-specific
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8216—Methods for controlling, regulating or enhancing expression of transgenes in plant cells
- C12N15/8222—Developmentally regulated expression systems, tissue, organ specific, temporal or spatial regulation
- C12N15/823—Reproductive tissue-specific promoters
- C12N15/8231—Male-specific, e.g. anther, tapetum, pollen
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8216—Methods for controlling, regulating or enhancing expression of transgenes in plant cells
- C12N15/8237—Externally regulated expression systems
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8216—Methods for controlling, regulating or enhancing expression of transgenes in plant cells
- C12N15/8237—Externally regulated expression systems
- C12N15/8238—Externally regulated expression systems chemically inducible, e.g. tetracycline
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8216—Methods for controlling, regulating or enhancing expression of transgenes in plant cells
- C12N15/8237—Externally regulated expression systems
- C12N15/8239—Externally regulated expression systems pathogen inducible
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
- C12N15/8261—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield
- C12N15/8271—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance
- C12N15/8279—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for biotic stress resistance, pathogen resistance, disease resistance
- C12N15/8282—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for biotic stress resistance, pathogen resistance, disease resistance for fungal resistance
Definitions
- the present invention relates to plants having improved resistance to certain pathogens sensitive to stilbenes, and more particularly relates to a set of constructs associating a plant promoter inducible by biotic stress, generated in particular by said pathogens, to one or more genes. coding for a stilbene synthase.
- the control method consisting in improving the resistance of cultivated plants to diseases caused by these pathogens has been considered. It is possible for example, in a first approach, to obtain this improvement by sexual means, by classical genetics, by hybridizing the plants whose resistance is to be improved with tolerant varieties. However, this approach is not always feasible (tolerant natural variety not known) or is not authorized by the legislation such as for example in viticulture by French legislation on Appellations d'Origine Contrôlée (AOC) which limits the grape varieties to be used for a given appellation.
- AOC Appellations d'Origine Contrôlée
- these defense mechanisms are of several kinds. Some can be considered passive and are linked to the physico-chemical characteristics of cells, epidermal tissues and / or organs of the plant. The rest belong to the dynamics of gene to gene interactions (plant resistance and pathogen avirulence genes, mechanisms of host-pathogen interactions). These interactions can lead to the development of the hypersensitivity reaction (rapid death of plant cells around the point of infection to block the colonization of the plant by the microorganism) but also to the synthesis and accumulation of a whole series of compounds.
- some may be wall constituents, involved in the formation of a "physical" barrier around the point of infection (callose, lignin, protein rich in hydroxyproline: HRGP, etc.), other compounds may be molecules with more or less well defined antimicrobial functions (phytoalexins, proteins associated with pathogens: PR proteins (Pathogenesis Related protein), etc.).
- phytoalexins proteins associated with pathogens: PR proteins (Pathogenesis Related protein), etc.
- stilbene designates a group of chemicals having the trans-diphenyl-1,2-ethylene skeleton as a common basic structure, resveratrol and pinosylvin being among the simplest.
- This basic skeleton is synthesized in plants by stilbene synthase or related enzymes, from substrates such as malonyl-CoA, cinnamoyl-CoA or coumaroyl-CoA, substances found in all plants (precursors of flavonoids).
- the genes for stilbene synthase or related enzymes have been isolated, sequenced and cloned, in particular from peanuts, orchids and vines.
- stilbenes are found only in certain healthy tissues and at very low concentrations.
- these stilbenes strongly increase at the infected or injured site, the genes of stilbene synthase being inducible under conditions of biotic or abiotic stress (for example wounds, ultraviolet, etc.).
- this regulation is rarely present in plants of agronomic interest or when it is present, it may not be sufficiently effective.
- the study of the synthesis of phytoalexins has shown the presence of stilbenes, including resveratrol, in healthy tissue only for wood.
- the present invention relates to nucleic acids comprising the promoter sequence of a PR alfalfa protein associated with at least one sequence of a gene coding for a stilbene synthase.
- the invention relates particularly to nucleic acids according to the invention, characterized in that the promoter of a PR protein of alfalfa is a promoter inducible in plants, specific or non-specific tissues, by biotic or abiotic stress.
- the invention also relates to nucleic acids according to the invention, characterized in that the promoter sequence of a PR alfalfa protein is chosen from the group comprising: a) the sequence IND SI, b) any sequence corresponding to a fragment of the sequence IND SI and having effect of promoter sequence in plants.
- promoter sequences of a PR alfalfa protein which have at least 80% homology with the sequence IND SI. Particularly preferred are those which have at least 90% or 95% homology with said sequence.
- the protein PR promoter sequences in alfalfa according to the invention were obtained from the protein PR gene regulatory sequences by taking advantage of the incompatible response (HR hypersensitivity reaction) obtained in the host-parasite relationship between alfalfa (Medicago sa tiva) and Pseudomonas syringae pv pi ⁇ i to isolate regulatory sequences of genes responsible for this reaction.
- HR hypersensitivity reaction obtained in the host-parasite relationship between alfalfa (Medicago sa tiva) and Pseudomonas syringae pv pi ⁇ i to isolate regulatory sequences of genes responsible for this reaction.
- the attack of alfalfa by Pseudomonas the appearance of a reaction of the plant is observed in the area near the necrosis caused by the bacterial infection.
- the plant material was therefore removed after the bacterial attack in order to constitute a cDNA bank from the messenger RNAs produced in the areas adjacent to the necrosis.
- Amplification by polymerase chain reaction (PCR) using synthetic polynucleotides corresponding to conserved motifs of PR genes from legume proteins, made it possible to obtain a radioactive probe which was then used to select transcripts in the cDNA bank.
- PCR polymerase chain reaction
- one of them was chosen because, after sequencing, it exhibited good homology with equivalent genes coding for PR proteins, known for other plants (cf. Figures 1 and Ibis representing the general scheme of the promoter's isolation method).
- PR10-1 was inserted into the Eco RI and Bam HI sites of the bluescript plasmid.
- the plasmid was linearized thanks to a Ps t I site, located upstream of Bam HI in the fragment E-
- PMs PR10-1 is also understood to mean any nucleic acid fragment of the sequence IND
- the invention also relates to nucleic acids according to the invention, characterized in that the sequence of a gene coding for a stilbene synthase, whether it is homologous or heterologous, is chosen from the genes isolated from the genomes of the peanut, orchid, vine and pine (EP-309,862, EP-464,461).
- nucleic acids encoding a vine stilbene synthase, in particular those described in the article by HAIN, R. et al., Nature 1993, 361, 153-156 and in that of IESE, W. et al., Plant Mol. Biol. , 1994, 26, 2, 667-677, the nucleic acid corresponding to the sequence vs tl of said articles is the most preferred.
- the nucleic acids allowing the expression of the stilbene synthase gene (s) may of course comprise, in addition to said gene (s), sequences in particular of polyadenylation at the 3 ′ end of the coding strand, as well as sequences "Enhancer" of said gene or of a different gene.
- nucleic acid sequences will have to be adapted in order to ensure that the gene will actually be read in the correct reading phase with the promoter and it will obviously be possible to plan to use, if necessary, several promoters of the same type as well as several "enhancer" sequences.
- nucleic acids according to the present invention several genes of stilbene synthase, either placed in cascade, or carried by different expression systems.
- the nucleic acids according to the invention can be used for the production of expression systems in plants, systems which can be inducible and / or constitutive depending on the transformed tissues or organs of the plant (cf. Examples 2, 3 and 4).
- the present invention therefore also relates to systems for expressing at least one stilbene synthase gene in plants, characterized in that they comprise at least one nucleic acid according to the invention.
- the transformation vectors and in particular the plasmid type transformation vectors are preferred.
- said transformation vectors are characterized in that they can be transferred into strains of Agrobacterium.
- the stilbene synthase genes which can be expressed by the nucleic acids according to the present invention are placed under the control of the promoter PMs PR10-1 in order to trigger in plants mechanisms of resistance to pathogens which are sensitive to stilbenes, in particular to resveratrol, to pinosylvin or their glycosylated derivatives such as picé ⁇ de or to oligomers such as viniferins.
- pathogens which are sensitive to stilbenes, in particular to resveratrol, to pinosylvin or their glycosylated derivatives such as picé ⁇ de or to oligomers such as viniferins.
- these parasites sensitive to stilbenes mention may be made of Botrytis cinerea, Plasmopora vi ticola, Eu typa la ta, etc.
- the expression systems according to the invention preference is given to those characterized in that they are inducible in plants by biotic or abiotic stress.
- the biotic stresses generated by the attack of a parasite sensitive to stilbenes such as a virus, a bacteria, a yeast, a fungus, in particular Botrytis cinerea or Plasmopora vi ti, are particularly preferred. cola.
- abiotic stresses caused by a mechanical injury such as that caused in particular by an insect or by a physical phenomenon such as wind or frost.
- the present invention also relates to plant cells transformed by a system or a vector according to the invention.
- said plant cells are vine cells.
- the present invention also relates to methods for transforming plant cells using a microbiological process including the systems or vectors according to the present invention.
- the invention further relates to methods for obtaining plants expressing one (or more) stilbene synthase gene (s), characterized in that plant cells of said plants are transformed using a system or a vector according to the invention, the cells expressing said gene (s) are selected and a plant is regenerated from these cells.
- the technology starting in particular from plasmid systems, makes it possible to carry out a first transformation of a strain of competent bacteria, in general E. coli, which makes it possible to clone and control the structure of the plasmids.
- the strain is then used to transfer the recombinant plasmids into strains of agrobacteria which will then be used to transform plant cells.
- Plants comprising an expression system or cells according to the invention form part of the invention.
- the invention relates to plants according to the invention, characterized in that they are plants of agronomic interest, in particular the vine.
- Figures 1 and 1 bis: General diagram representing the different stages of the method of isolation of the inducible promoter PMs PR10-1 corresponding to the sequence IND SI.
- Figure 2 Presentation of the various clones isolated and corresponding to the Southern blot, hybridized with the 5 ′ and 3 ′ parts of the cDNA-PR7, delimited by an internal Bam HI (B) site, detected in this AD c.
- Figure 4 DNA sequence corresponding to the sequence of a vine stilbene synthase gene modified by the addition of an adapter (modified vstl).
- the modified part is shown in italics.
- the coding and non-coding parts are represented in upper and lower case letters respectively.
- Figure 5 DNA sequence comprising the sequence of the inducible promoter PMs PR10-1 (corresponding to the sequence IND SI in lower case) associated with the sequence of a gene of vine stilbene synthase modified by the addition of an adapter (mod vstl, corresponding to Figure 4). Between the two (framed in the sequence) are (written in lower case, end of the promoter and upper case, start of the gene containing the translation initiation codon) the 13 nucleotides coming from an internal sequence of the coding phase of the gene Ms PR10-1, 1 ⁇ TG having been put in reading phase with the modified vs tl gene, these nucleotides are therefore integrated into the coding phase of vstl.
- the sequence of the inducible PMs PR10-1 promoter includes 7 of the 13 nucleotides of the Ms PR10-1 gene sequence (in lower case in the box).
- the coding and non-coding (intron) parts of the part corresponding to the sequence of the vine stilbene synthase gene are represented in upper and lower case letters respectively.
- Figure 6 Demonstration of the induction of a gene encoding a stilbene synthase by U.V ..
- RNAs are extracted from approximately 1 g of leaves 17 hours after UV induction. 10 to 20 ⁇ g are deposited on a formaldehyde-formamide denaturing gel. After migration (3 V.c ⁇ f 1 ), the RNAs are transferred to a nylon membrane and fixed by exposure to UV (254 nm, 33 mJ.cm "2 ). The Northern blot is obtained by hybridization at 65 ° C overnight with the biotinylated vstl probe.
- the initial explant consists of leaves isolated from vitroplants of 41B (control) or 41B genetically transformed with a construct (insert 13 kb, comprising two complete stilbene synthase genes vs tl, vst2, a piece of genomic vine DNA and another gene for stilbene synthase of vine (vst3) truncated) integrating supernumerary copies of genes coding for stilbenes synthases of vine under control of their own promoters (clones 2 and 3 corresponding respectively to clones 55-2 and 55-3) .
- 41B V. vinifera, Chasselas x V. berlandieri hybrid rootstock.
- Figure 7 Kinetics of accumulation of stilbene synthase mRNAs after UV induction.
- RNAs are extracted from approximately 1 g of leaves. 10 to 20 ⁇ g are deposited on denaturing formaldehyde gel- 12
- RNAs After migration (3 V.c ⁇ f 1 ), the RNAs are transferred to a nylon membrane and fixed by exposure to UV (254 nm, 33 mJ.cm "2 ). The Northern blot is obtained by hybridization at 65 ° C overnight with the biotinylated vstl probe.
- the explants are leaves isolated from vitroplants of 41B.
- the control is a clone not genetically transformed unlike clones 2 and 3 (corresponding respectively to clones 55-2 and 55-3) which have integrated into their genome 1 insert 13 kb (see above) containing genes coding for vine stilbenes synthases (vstl + vs t2).
- 41B V. vinifera, Chasselas x V. berlandieri hybrid rootstock.
- Figure 8 Quantities of resveratrol present in the leaves of vitroplants, treated for 8 min in UV and analyzed at different periods after induction.
- the quantities are expressed in ⁇ g per g of fresh material.
- NI not induced.
- the control consists of leaves taken from untransformed 41B.
- PCT 55-2 and 55-3 represent two transformants having integrated the 13 kb insert comprising two complete stilbene synthase genes (vstl and vst2).
- Figure 9 Inhibition of growth of the mycelium of Botrytis cinerea, strain 916T, after 7 days at 20 ° C.
- the mycelium culture is carried out on malt-glucose medium containing the different concentrations of resveratrol.
- FIG. 10 Photo plate 1 Macroscopic observations characteristic of the different varieties of vine interacting with Botrytis cinerea 5 days after inoculation of the leaves of vitroplants with a suspension of conidia - Unprocessed plants. Up :
- Macroscopic observations characteristic of 41B rootstock clones, transformed by different constructions 145: Promoter PMs PR10-1 - vstl gene; 55: 13 kb insert comprising two genes vstl and vst2 under the control of their own promoters), in interaction with Botrytis cinerea, 5 days after inoculation of vitroplanting leaves with a suspension of conidia. Above: - Left: Clone 145-2.
- Fluorescence filter block A (excitation from 340 to 380 nm; stop filter at 425 nm). Resveratrol emits fluorescent light in bluish white and blue (depending on its concentration), chlorophyll in red. The black area corresponds to the area of infection by the fungus or to necrotic areas when they are small. Up :
- Rootstock 41B (tolerant) unprocessed. Synthesis of intense resveratrol in the veins and in the limbus around small and very localized areas of infection (necrotic areas).
- Rootstock 41B transformed by construction 145 that is to say the PMs PR10-1 promoter vstl gene, clone 145-5 very tolerant. Strong synthesis of resveratrol around and, in the area of infection, in the veins and on almost the entire leaf blade.
- the incompatible response obtained in the host-alfalfa parasite relationship (Medicago sa tiva) and Pseudomonas syringae pv pisi, made it possible to build a cDNA library. It was carried out using messenger RNAs extracted and purified from the area near the necrosis caused by the bacterial infection. The plant material samples were taken 6 hours after infiltration with the bacterial suspension.
- PR proteins are known to have conserved motifs, this has enabled the synthesis of oligonucleotides corresponding to these defined motifs from the sequencing already carried out on PR pea and soy proteins.
- PCR amplification made it possible to obtain a radioactive probe, which was then used to select transcripts from the cDNA library.
- cDNA-PR7 was chosen because after sequencing it presented 87% homology with the genes coding for the PR pea and soy protein. Analysis showed that it actually corresponded to a gene 15
- Ms PR10-1 Medi cago sa ti va PR protein class 10, clone 1).
- a control carried out in alfalfa by Northern blot, showed that the corresponding transcript accumulated as early as 3 hours after infection in the case of the incompatible reaction, passed by a maximum between 24 and 48 hours and decreased slowly from 72 hours.
- This fragment is characterized by the existence of an internal Bam HI site (denoted B in FIG. 1) which delimits two parts:
- - one called 5 ' of about 340 bases, includes the upstream region of ATG (which is transcribed but not translated) and a downstream sequence corresponding to 306 bases, - the other called 3', corresponds to end of the coding part, ie 165 bases and the 3 'untranslated region, or 186 nucleotides of the stop codon until the start of poly A.
- PR7 protein corresponded to a small multigenic family.
- a clone was chosen to be sequenced first, the clone C15 (cf. FIG. 1 bis).
- Example 2 Energetic transformations carried out to verify the promoter activity of the isolated clone 17
- control transformations two promoters were chosen: a control promoter and the PR promoter isolated from the alfalfa genome, derived from C15 (corresponding to the PMs promoter PR10-1).
- This promoter said to be constitutive, is conventionally used. It corresponds to the regulatory sequence for the transcription of the gene for the 35S RNA subunit of the cauliflower mosaic virus (CaMV).
- PMs PR10-1 II comes from the EcoRI / BamHI (E / B) fragment of E / B
- This fragment therefore includes, with reference to the cDNA which served to clone it and in addition to the upstream promoter region: 39 terminal nucleotides of the 5'UTR (UnTranslated Region) of the Ms PR 10-1 gene, located 10 bp from the codon Initiating ATG, the ATG of the Ms PR10-1 gene and a short fragment of its coding region (10 bp), just upstream from the integrated Bam HI site.
- the promoter thus constructed presents a potential ATG which could lead to the presence of two ATG codons, at a short distance from each other, during the construction of chimeric genes.
- a risk of modification of the coding phase of the gene used could then exist.
- STRATAGENE It could be isolated again in the form of an EcoRI / BamHI fragment of approximately 1.5 kb.
- This plasmid was constructed by one of the laboratories participating in the project to test the effectiveness of promoters (P. RATET, ISV, cited in SZABADOS et al.,
- the promoter activity can be revealed and measured by histochemical and enzymatic tests of the GUS type.
- the 35S promoter cloned in the plasmid pDH51 (cf. paragraph 5 below), was extracted and inserted into the multiple cloning site of pPR97, upstream of the reporter gene, in the form of an EcoRI / BamHI fragment.
- This plasmid is both a positive control, to demonstrate that the construction is functional, and a reference because the 35S promoter was placed in the same environment as the promoter isolated from the PR protein clones.
- pPR97-PMs PR10-1 The 1.5 kb were inserted into the same cloning site as that defined above, again in the form of an EcoRI / BamHI fragment.
- pG3-3
- the different plasmids were used to transform competent bacteria E. coli strain DH5 ⁇ 20
- agrobacteria Two strains of agrobacteria were selected: EHA 105, AgroJbac eriu-n tumefaciens disarmed, allowing the regeneration of transformed plants (stable transformations), and A4TC24, Agrobacterium rhizogenes used to obtain the reaction of root hair type (Hairy root) and composite plants, with transformed roots but whose rest of the plant has the same phenotype as the original.
- Leaves of N. ben thamiana were therefore excised and cocultured on agar medium with the different derivatives of the EHA 105 strain. Histochemical tests were then performed 48 h after transformation and then examined after overnight incubation.
- Construction pPR97-PMs PR10-1 showed gus gene activity similar to that of the positive control
- Number of buds per explants the number in brackets corresponds to the number of buds obtained at one month, for the first series. For this one (including construction 35S gus intron), the calluses were left more 23
- the promoter is induced and the histochemical test is positive after 2 hours of incubation (against 5 hours with the 35S promoter).
- the activity of the gus gene is not uniform in tobacco roots, only the epidermis of the old parts and the apical meristem gave the blue coloration characteristic of the test. According to the literature, the activity of defense genes in the roots is also conventionally observed.
- a constitutive inducing activity of the isolated promoter PMs PR10-1 is therefore possible in the trichomes of tobacco leaves (3 plants out of 7) but it seems to be under the influence of the development stages.
- the activity of the promoter in tobacco is therefore limited to the root, to the floral parts (anthers and pollen) and to a few cells of the aerial part (mainly trichomes). 25
- the aim of the experiment was to study the induction of the promoter during nodulation by the symbiont bacterium Rhizobium meliloti NZP 2037 (PETIT et al., 1987).
- Composite plants were therefore produced by transforming hypocotyl cells from young Lotier germinations with Agrobacterium rhizogenes strain A4TC24, to obtain the phenomenon of root scalp (hairy root phenotype). Once this developed, the main roots were excised and the seedlings were placed in a liquid medium to increase the development of the phenomenon.
- the hypersensitivity reaction developed in the interaction N. ben thamiana - Pseudomonas syringae pv. pisi, was used in this study.
- Transformed tobacco plants having incorporated into their genome the various inserts of the plasmids p35S gus intron and pPR97-PMs PR10-1-gus intron, were acclimatized and then infiltrated with a suspension of P. syringae (ESNAULT et al., 1993) at a concentration of 10 9 bacteria per ml.
- the solution was injected into the limbus using a hypodermic syringe. With such a model, in 48 hours, the HR type reaction is considered to be well developed.
- PR protein gene promoters PR10-1 PMs promoter
- this promoter is very inducible by attack by a pathogen.
- the HR type reaction is not yet fully developed (48 hours for full exposure), however, the GUS test is already positive. With the young transformed tobacco plants obtained, the coloration is weak and produced mainly in the leaf blade of the infiltrated leaf.
- the coloration obtained during the test is more intense, especially in the veins and trichomes of the infected leaf and only in these tissues for the systemic response.
- Induction is also not limited to the HR type reaction obtained during the plant / bacteria interaction.
- the same type of response was obtained with the PMs PR10-l-gus intron construct during infection of one of the explants by a fungus.
- a homogeneous expression of the gus gene was then visible on the entire infected leaf, except for the area of contamination which itself became necrotic.
- Table 2 Induction of the various promoters studied during the HR type reaction between N. benthamiana and P. syringae.
- the method is based on an enzymatic test. It uses: a) a crude extract of the enzyme encoded by the gus gene obtained from transformed tobacco plants, and b) a substrate, p nitrophenyl glucuronide. The rate of hydrolysis of the substrate is followed by a spectrophotometer and is related to the total amount of protein in the extract. However, the method requires 30
- the promoter 35S placed in the plasmid pG3-3, gave a rate of hydrolysis of the substrate (expressed in arbitrary unit) 5 times higher than the promoter PMs PR10-1, meanwhile placed in the plasmid pPR97.
- the PMs PR10-1 promoter gave a stronger expression of the gus gene than the 35S promoter, if the latter is placed in the plasmid p35S-gus intron. Indeed, in the latter case, no detection of hydrolysis of the substrate was obtained.
- the insert used to carry out the work reported below corresponds in fact to a complex genomic clone comprising two complete functional sequences of stilbene synthase genes (genes vstl and vst2) and an incomplete sequence vst3. Subsequently, the sequence of the vstl gene was selected to be incorporated into the constructions made. It corresponds to a 4.9 kb genomic fragment (functional sequence including the promoter) which does not have adequate restriction sites to allow direct cloning in the plasmids usually used as transformation vectors. Additional sites were therefore added by intermediate cloning into a plasmid pCDNA II.
- the genomic fragment of the vstl gene already indicated was isolated from the original plasmid in which it had been cloned, in the form of an EcoRI / Ps tI fragment (2.1 kb) and cloned again in a plasmid pUC19. Once cloned, the vstl fragment was incorporated into the same sites (EcoRI / PstI) of the plasmid pCDNA II to change the restriction sites, delete the gene terminator and allow the isolation of a Ba HI / BamHI insert (1 , 8 kb).
- a probe (1.8 kb), comprising the vstl gene, was prepared from the plasmid pCDNA II multiplied in the bacteria E. col i HB 101.
- the probe was then biotinylated by random priming, with the Polar Plex kit (Plex chemiluminescent kits, Millipore), to allow detection of the genes or transcripts coding for a stilbene synthase by chemiluminescence on Southern and Northern blots, made from nucleic acids extracted from control or transformed vine plants.
- vstl Southern blot analyzes were carried out after extraction of genomic DNA and then digestion of the latter with EcoRI.
- the vstl probe made it possible to obtain a large number of bands (approximately 15). These actually correspond to fragments containing sequences coding for a stilbene synthase which constitute a multigenic family (6 to 8 genes according to WIESE et al., 1994).
- vstl, vst2 and vst3 are highly homologous to each other.
- other genes can be recognized by this probe, in particular those corresponding to the multigenic family of chalcone synthetase.
- the two enzymes are in fact of the same structure and the same size (subunit dimers from 41 to 44 kb). They also use the same substrate and their amino acid sequence has a high rate of homology, at least at the active site.
- pCDNA II contained the vstl gene, and the other, pPCV 002, a Rosier chalcone synthase gene, available in the laboratory.
- pPCV 002 a Rosier chalcone synthase gene, available in the laboratory.
- a biotinylated probe corresponding to Rosier's chalcone synthase gene was also prepared.
- the fresh plant material, leaves or stems, is reduced to powder in a mortar containing liquid nitrogen and the apolar compounds are extracted with methanol (1 ml per 100 mg of fresh material: m.f.).
- the methanolic extract is filtered through a 0.45 ⁇ m filter and then evaporated to dryness under nitrogen. The residue is taken up in pure methanol (100 ⁇ l / 100 mg mf). In order to remove the pigments (chlorophylls in particular), the sample is then passed through a column C18 (Sep-pack WATERS), previously equilibrated with methanol.
- CL. HP High Pressure Liquid Chromatography
- HP WATERS Model 600 E
- a diode array detector Model 990. WATERS
- the chromatography support is composed of a C18 reverse phase column (ultra-base Cl8, 205 x 4.6 mm, 5 ⁇ m; Shandon).
- the analysis of the compounds of the extract is carried out under isocratic conditions, the mobile phase consisting of a mixture of acetonitrile-water 35/65, V / V with a flow rate of 1 ml. min "1 .
- An absorption spectrum is produced every two seconds between 200 and 400 nm and resveratrol is detected at its maximum adsorption at 305 nm.
- resveratrol concentration measured from the area of the peak corresponding to the molecule, is reported 34
- a 35S (CaMV).
- the vst1 coding sequence was placed under the control of four “enhancer” sequences isolated from the CaMV 35S promoter and, connected in series in front of the CaMV 35S promoter and the vineyard gene promoter's own “enhancer” sequence (vstl).
- the two chimeric sequences thus produced were first inserted into the plasmid PMP 90RK then the plasmids were subsequently incorporated into the agrobacterial strain GV3101.
- the approximately 13 kb fragment of vine genomic DNA has been described above. It notably includes 2 functional genes (vstl and vst2) coding for enzymes stilbene synthases and a gene (vstJ3) incomplete (not 35
- This vine sequence was co-integrated with a plasmid pGV3850 which was then introduced into a strain of agrobacteria. It therefore corresponds to open reading frames of vst genes (vine stilbene synthase) under the control of their own promoters.
- the promoter PMs PR10-1 isolated from alfalfa and the vstl gene each comprising an ATG codon initiating translation an adapter was made to clone the vstl gene without additional ATG in the construction.
- This adapter was synthesized in the form of two oligonucleotides of 11 bp each, one compatible Bam HI, the other a compatible I.
- the adapter was then incorporated into the Mun I site of the vst1 gene cloned into the plasmid pUC19.
- the insert was then recovered by Bam HI digestion, then cloned into pBIN 19 between the PMs PR10-1 promoter and the 35S terminator.
- the insertion of the vstl gene with its adapter was therefore located between the PMs PR10-1 promoter and the 35S terminator. Under these conditions, the ATG of the gene 36
- vstl has been eliminated and 3 additional codons have been included in the coding phase of vstl, upstream of the gene. It was verified by sequencing that the open reading frame of the gene was still in phase with the rest of the construction.
- the transformants were analyzed by Southern blot, using the npt11 probe already described.
- full integration cannot be fully demonstrated by this method and especially by this probe, since in the Agrobacterium system it is accepted that insertion into the genome of the plant begins at the right border and ends at that from the left.
- the nptIJ gene being located, in the construction used, near the right border, a partial integration, nptll gene inserted but subsequent blocking of integration before the left border, is therefore possible.
- the transformants were coded 145 and assigned the numbers 2, 5, 6 for those whose results are presented below.
- vitro having 6 to 8 well developed leaves, can be obtained in two months of culture.
- Each sample is made up of 3 leaves isolated from the same plant, induced separately by UV rays but combined for extraction and dosing. The test is carried out on excised sheets, isolated from vitroplants, or on 39
- vitroplants in culture on agar medium having 6 to 7 well-developed leaves.
- the three oldest leaves of each seedling are taken and used for the test.
- Exposure to UV rays is carried out on their upper side.
- the amounts of resveratrol obtained are expressed in ⁇ g of product, reported either per gram of fresh weight of leaves analyzed, or per gram of dry matter (evaluated on the pellet, after centrifugation after methanolic extraction) or in mg of resveratrol per g of chlorophyll.
- UV expression of the genes coding for stilbene synthase was carried out after a period separating UV induction from the analyzes fixed at 17 hours
- Clones 55-2 and 55-3 correspond to transformed plants having integrated a 13 kb insert containing genes coding for a stilbene synthase.
- Table 4 Kinetics of the evolution of resveratrol concentrations on leaves of vitroplants of 41B, induced by UV taken from the plants in culture on agar medium, then isolated and analyzed for their resveratrol content at different periods after induction.
- the amount of resveratrol found in the control sheets is maximum 24 hours after induction (of the order of 80 ⁇ g.g * 1 mf for 41B).
- Table 5 presents the results obtained for a second series of transformants having integrated the 13 kb insert.
- the study of the kinetics of UV induction of the expression of genes coding for stilbene synthase was carried out after a period separating UV induction from analyzes varying from 20, 40 or 60 hours.
- Resveratrol concentrations are expressed in ⁇ g.g -1
- the first corresponds to the control and to two of transformants 55-6 and 55-7. They generally have a maximum resveratrol concentration of between 280 44
- the second group has higher maxima, almost double the first (820 to 930 ⁇ g. g "1 dry matter). It consists only of transformants (55-2, 55-3 and 55-9) The maximum is expressed 40 hours after induction with UV, on the other hand, 20 hours after induction, these plants often have concentrations much lower than those of the first group. This is the case for example of clones 55-2 and 55 -3 (135 and 44 ⁇ g.g "1 of dry matter respectively).
- One of the clones, 55-9 is however interesting since it shows higher resveratrol concentrations than those of the control in all cases (386, 823 and 54 ⁇ g.g "1 of dry matter for times of 20, 40 and 60 hours after induction).
- UV induction is carried out on vitroplants in culture on agar medium. The leaves are removed and extracted for analysis 20 hours after treatment.
- the results represent the average of 3 repetitions.
- the transformants meanwhile, have resveratrol contents, 20 hours after induction, greater than or equal to the untransformed control 41B (539,
- the concentration obtained is half that of the control. If we compare these values, expressed in ⁇ g.g "1 dry weight, with those of the isolated leaves (Table 5), we see that they are similar for the control but on the other hand that the variations exist for the transformants analyzed 20 hours after induction. These are sometimes very important (135 for induction on isolated sheets and 362 for induction on vitroplants for clone 55-2; 44 against 236 for clone 55-3; 392 against 116 for clone 55-5 and 339 against 540 for 55-6). In addition, there is great variability between the different repetitions.
- the action of the molecule was studied on the growth of the mycelial hyphae of Botrytis cinerea in culture on a Malt-Agar medium, comprising a range of 48
- the test developed consisted in inoculating seedling leaves, cultivated in vitro on microbouturage medium, by depositing on their upper face 20 ⁇ l of a suspension of conidia at 1.10 "4 conidia. Ml " 1 (200 conidia per deposit) in a malt-glucose medium.
- the seedlings thus inoculated on 4 different leaves, are then cultivated in a climatic chamber (photoperiod 16 h day, 8 h night; temperature 24 ° C; humidity 70%). Two days after inoculation, the youngest row 4 leaves were observed (necrosis and maceration present, counted using a camera connected to a television monitor) and extracted with methanol to allow the dosing of the resveratrol synthesized in response.
- leaves number 2 were removed to be observed under fluorescence microscopy. Macroscopic observation (necrosis and maceration on the leaves) and a count of foil with fruiting bodies' mushroom (conidiophores) has also been made on the leaves number 3. Finally at 9 days of leaves 49
- leaf symptoms (maceration area of the fungus or necrotic spots, consisting of small black-brown areas, located around the spores of the fungus, or with no visible symptoms)
- Maceration zones large and diffuse zone where Botrytis rapidly destroys plant cells. These areas have a light brown beige color.
- Necrotic spots very small areas circumscribed around the fungus. These spots are brown-black in color.
- Maceration zones large and diffuse zone where Botrytis rapidly destroys plant cells. These areas have a light brown beige color.
- Table 9 Results of the resveratrol assays by H.P.L.C. on different vine varieties interacting with Botrytis cinerea for 2 days
- Resverate variety mg.g "1 resverate. ⁇ g.g " 1 tested chloroph. dry weight
- resveratrol resveratrol
- chloroph. chlorophyll Folle B 280: Folle blanche 280;
- Pinot N 386 Pinot noir 386;
- Ugni B 479 Ugni-blanc 479;
- Porte-g41 B Rootstock 41B.
- the dosage, carried out on the entire sheet, is not representative of the variations in synthesis of resveratrol existing in each cell that composes it. It is, in fact, generally accepted that, in hypersensitivity reactions to a parasite, not all limbus cells synthesize defense molecules. Only the cells located near the attack zones of the fungus are induced to synthesize phytoalexins. The analyzes carried out in this test therefore only represent values corresponding to an average level of resveratrol present in the leaf blade interacting with the parasite. A significant dilution phenomenon can therefore occur, especially for resistant plants, between the concentrations present in the cells induced in the synthesis of phytoalexin and the value found during the analysis of the entire leaf.
- Table 10 shows that the former has approximately 3 times more resveratrol than the latter, regardless of the units 58
- vine plants having incorporated the PMs PR10-1-vstl gene and 13 kb insert constructs were obtained. These genetically transformed plants could be compared to the control (41B not transformed) and multiplied by micropropagation.
- FISHER R. and HAIN R., 1994 Plant disease resistance resulting from the expression of foreign phytoalexins. Current Opinion in Biotechnology, 5, 125-130.
- NEGRETIU I. and GHARTI-CHHETRI, G.B., 1991. A Laboratory Guide for Cellular and Molecular Biology, BIOMETHODS; SALUZ, H. P. and BECKER, M. M., Editions Series. , BIRKHAUSER VERLAG, 105-122.
- Construction of an intron- containing marker-gene splicing of the intron in transgenic plants and its use in monitoring early events in Agrobacterium-mediated transformation. Mol. Gen. Broom. 220, 245-250.
- VAN LOON L.C 1985. Pathogenesis Related Proteins. Plant Mol. Biol. 4, 111-116.
- VAN LOON L.C PIERPOINT W.S., BOLLER T., CONEJERO V., 1994. Recommendations for naming plant pathogenesis related proteins. Plant Mol. Biol. Rep 12, 245-264.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99903742A EP1053337A1 (fr) | 1998-02-13 | 1999-02-12 | Acide nucleique comprenant la sequence d'un promoteur inductible par un stress et une sequence d'un gene codant pour une stilbene synthase |
US09/622,257 US6800794B1 (en) | 1998-02-13 | 1999-02-12 | Nucleic acid comprising the sequence of a promoter unductible by stress and a gene sequence coding for a stilbene synthase |
JP2000531573A JP2002503475A (ja) | 1998-02-13 | 1999-02-12 | ストレス誘導性プロモーターの配列およびスチルベンシンターゼをコードする遺伝子の配列を含む核酸 |
BR9907856-2A BR9907856A (pt) | 1998-02-13 | 1999-02-12 | ácido nucleico, sistema de expressão de um gene de estilbeno sintase nas plantas, vetor de expressão, célula vegetal, processos de obtenção de célula e de plantas que expresam um gene de estilbeno sintase, e, planta |
AU24292/99A AU758346B2 (en) | 1998-02-13 | 1999-02-12 | Nucleic acid comprising the sequence of a promoter inductible by stress and a gene sequence coding for stilbene synthase |
CA002320401A CA2320401A1 (fr) | 1998-02-13 | 1999-02-12 | Acide nucleique comprenant la sequence d'un promoteur inductible par un stress et une sequence d'un gene codant pour une stilbene synthase |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9801742A FR2775001B1 (fr) | 1998-02-13 | 1998-02-13 | Acide nucleique comprenant la sequence d'un promoteur inductible par un stress et une sequence d'un gene codant pour une stilbene synthase, cellule et plante transformees par cet acide nucleique |
FR98/01742 | 1998-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999041392A1 true WO1999041392A1 (fr) | 1999-08-19 |
Family
ID=9522935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/000316 WO1999041392A1 (fr) | 1998-02-13 | 1999-02-12 | Acide nucleique comprenant la sequence d'un promoteur inductible par un stress et une sequence d'un gene codant pour une stilbene synthase |
Country Status (9)
Country | Link |
---|---|
US (1) | US6800794B1 (fr) |
EP (1) | EP1053337A1 (fr) |
JP (1) | JP2002503475A (fr) |
CN (1) | CN1375011A (fr) |
AU (1) | AU758346B2 (fr) |
BR (1) | BR9907856A (fr) |
CA (1) | CA2320401A1 (fr) |
FR (1) | FR2775001B1 (fr) |
WO (1) | WO1999041392A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109371046A (zh) * | 2018-09-29 | 2019-02-22 | 上海交通大学 | 一种用于嗜热微生物遗传操作的诱导型毒素-抗毒素元件 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006124999A2 (fr) * | 2005-05-19 | 2006-11-23 | E. I. Du Pont De Nemours And Company | Procede de production du resveratrol dans une cellule hote bacterienne recombinante |
ES2344775B2 (es) * | 2008-10-31 | 2011-06-07 | Universidad De Murcia | Uso de las ciclodextrinas para la produccion y extraccion de fitoesteroles en cultivos celulares. |
CN102120997A (zh) * | 2010-12-03 | 2011-07-13 | 西北农林科技大学 | 葡萄病程相关蛋白pr10-1水解rna与抑菌活性的方法 |
CN103255141B (zh) * | 2012-02-21 | 2014-08-06 | 华中农业大学 | 一种水稻缺氮特异性诱导表达的启动子y5及应用 |
CN103255140B (zh) * | 2012-02-21 | 2014-06-18 | 华中农业大学 | 水稻缺氮后恢复供氮特异性诱导表达的启动子y2及应用 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0307841A1 (fr) * | 1987-09-15 | 1989-03-22 | The General Hospital Corporation | Protéines de plantes relatives à la pathogenèse |
EP0332104A2 (fr) * | 1988-03-08 | 1989-09-13 | Ciba-Geigy Ag | Sèquences d'ADN et gènes chimiquement regulables, et leur emploi |
EP0464461A2 (fr) * | 1990-06-29 | 1992-01-08 | Bayer Ag | Gène de stilbensynthase de la vigne |
WO1993019188A1 (fr) * | 1992-03-20 | 1993-09-30 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Gene chimerique sensible aux champignons |
WO1994002619A1 (fr) * | 1992-07-16 | 1994-02-03 | Pioneer Hi-Bred International, Inc. | Sequence regulatoire pour especes brassica destinee a l'expression genique a specificite radiculaire ou pour racine abondante |
US5312912A (en) * | 1989-06-13 | 1994-05-17 | Hadwiger Lee A | Procedures and regulatory DNA sequences for genetically engineering disease resistance and other inducible traits in plants |
WO1994021793A1 (fr) * | 1993-03-23 | 1994-09-29 | Rustica Prograin Genetique | Promoteur vegetal, microorganismes et cellules vegetales contenant une unite d'expression d'une proteine d'interet comprenant ledit promoteur |
WO1995003690A1 (fr) * | 1993-08-02 | 1995-02-09 | Virginia Tech Intellectual Properties, Inc. | Systeme d'expression du promoteur hmg2 et production post-recolte de produits geniques chez des plantes et dans des cultures vegetales |
WO1995033818A2 (fr) * | 1994-06-08 | 1995-12-14 | Ciba-Geigy Ag | Genes pour la synthese des substances antipathogenes |
DE4440200A1 (de) * | 1994-11-10 | 1996-05-15 | Bayer Ag | DNA-Sequenzen und ihre Verwendung |
US5677175A (en) * | 1995-10-13 | 1997-10-14 | Purdue Research Foundation | Plant pathogen induced proteins |
WO1997049277A1 (fr) * | 1996-06-26 | 1997-12-31 | University Of Florida Research Foundation, Inc. | RESISTANCE AUX MALADIES DE LA VIGNE $i(VITIS) |
-
1998
- 1998-02-13 FR FR9801742A patent/FR2775001B1/fr not_active Expired - Fee Related
-
1999
- 1999-02-12 US US09/622,257 patent/US6800794B1/en not_active Expired - Fee Related
- 1999-02-12 EP EP99903742A patent/EP1053337A1/fr not_active Withdrawn
- 1999-02-12 BR BR9907856-2A patent/BR9907856A/pt not_active IP Right Cessation
- 1999-02-12 CN CN99804094A patent/CN1375011A/zh active Pending
- 1999-02-12 JP JP2000531573A patent/JP2002503475A/ja not_active Withdrawn
- 1999-02-12 WO PCT/FR1999/000316 patent/WO1999041392A1/fr not_active Application Discontinuation
- 1999-02-12 CA CA002320401A patent/CA2320401A1/fr not_active Abandoned
- 1999-02-12 AU AU24292/99A patent/AU758346B2/en not_active Ceased
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0307841A1 (fr) * | 1987-09-15 | 1989-03-22 | The General Hospital Corporation | Protéines de plantes relatives à la pathogenèse |
EP0332104A2 (fr) * | 1988-03-08 | 1989-09-13 | Ciba-Geigy Ag | Sèquences d'ADN et gènes chimiquement regulables, et leur emploi |
US5312912A (en) * | 1989-06-13 | 1994-05-17 | Hadwiger Lee A | Procedures and regulatory DNA sequences for genetically engineering disease resistance and other inducible traits in plants |
EP0464461A2 (fr) * | 1990-06-29 | 1992-01-08 | Bayer Ag | Gène de stilbensynthase de la vigne |
WO1993019188A1 (fr) * | 1992-03-20 | 1993-09-30 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Gene chimerique sensible aux champignons |
WO1994002619A1 (fr) * | 1992-07-16 | 1994-02-03 | Pioneer Hi-Bred International, Inc. | Sequence regulatoire pour especes brassica destinee a l'expression genique a specificite radiculaire ou pour racine abondante |
WO1994021793A1 (fr) * | 1993-03-23 | 1994-09-29 | Rustica Prograin Genetique | Promoteur vegetal, microorganismes et cellules vegetales contenant une unite d'expression d'une proteine d'interet comprenant ledit promoteur |
WO1995003690A1 (fr) * | 1993-08-02 | 1995-02-09 | Virginia Tech Intellectual Properties, Inc. | Systeme d'expression du promoteur hmg2 et production post-recolte de produits geniques chez des plantes et dans des cultures vegetales |
WO1995033818A2 (fr) * | 1994-06-08 | 1995-12-14 | Ciba-Geigy Ag | Genes pour la synthese des substances antipathogenes |
DE4440200A1 (de) * | 1994-11-10 | 1996-05-15 | Bayer Ag | DNA-Sequenzen und ihre Verwendung |
US5677175A (en) * | 1995-10-13 | 1997-10-14 | Purdue Research Foundation | Plant pathogen induced proteins |
WO1997049277A1 (fr) * | 1996-06-26 | 1997-12-31 | University Of Florida Research Foundation, Inc. | RESISTANCE AUX MALADIES DE LA VIGNE $i(VITIS) |
Non-Patent Citations (8)
Title |
---|
"Pisum sativum disease resistance response protein PR10 (DRR49a)", EMBL SEQUENCE ACCESSION NO. U31669, 31 August 1995 (1995-08-31), XP002081883 * |
BREDA, COLETTE ET AL: "Defense reaction in Medicago sativa: a gene encoding a class 10 PR protein is expressed in vascular bundles", MOL. PLANT-MICROBE INTERACT. (1996), 9(8), 713-719, XP002081880 * |
CONSTABEL,C.P., ET AL.: "Stigma- and vascular-specific expression of the PR-10a gene of potato: A novel pattern ofexpression of a pathogenesis-related gene", MOLECULAR AND PLANT-MICROBE INTERACTIONS, vol. 8, 1995, pages 104 - 113, XP002081881 * |
CULLEY, ET AL.: "Plant gene register PGR95-070. Cloning and sequencing of disease-resistance response gene DRR49a (Ypr10.PS1; pI49) from Pisum sativum (accession no. U31669)", PLANT PHYSIOLOGY., vol. 109, 1995, pages 722, XP002081884 * |
FISCHER R: "OPTIMIERUNG DES HETEROLOGEN EXPRESSION VON STILBENSYNTHASEGENE FUER DEN PFLANZENSCHUTZ, PASSAGE", DISSERTATION ZUR ERLANGUNG DES GRADES EINES DOKTORS DER NATURWISSENSCHAFTEN, UNIVERSITÄT HOHENHEIM, December 1994 (1994-12-01), pages 1 - 158, XP002081885 * |
HAIN R ET AL: "DISEASE RESISTANCE RESULTS FROM FOREIGN PHYTOALEXIN EXPRESSION IN ANOVEL PLANT", NATURE, vol. 361, 14 January 1993 (1993-01-14), pages 153 - 156, XP002026319 * |
SPARVOLI, F., ET AL.: "V.vinifera StSy mRNA for stilbene synthase", EMBL SEQUENCE ACCESSION NO.X76892, 9 June 1994 (1994-06-09), XP002082419 * |
TRUESDELL G M ET AL: "Isolation of pathogen-stress-inducible cDNAs from alfalfa by mRNA differential display.", PLANT MOLECULAR BIOLOGY 33 (4). 1997. 737-743. ISSN: 0167-4412, XP002081882 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109371046A (zh) * | 2018-09-29 | 2019-02-22 | 上海交通大学 | 一种用于嗜热微生物遗传操作的诱导型毒素-抗毒素元件 |
Also Published As
Publication number | Publication date |
---|---|
FR2775001A1 (fr) | 1999-08-20 |
US6800794B1 (en) | 2004-10-05 |
EP1053337A1 (fr) | 2000-11-22 |
FR2775001B1 (fr) | 2000-05-12 |
BR9907856A (pt) | 2000-10-24 |
AU758346B2 (en) | 2003-03-20 |
CA2320401A1 (fr) | 1999-08-19 |
CN1375011A (zh) | 2002-10-16 |
AU2429299A (en) | 1999-08-30 |
JP2002503475A (ja) | 2002-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2005336142B2 (en) | A transgenic plant having enhanced drought tolerance | |
US10155958B2 (en) | Method for improving plant resistance to insects | |
FR3096054A1 (fr) | Application du gène GhCAL-D07 pour promouvoir la floraison de plantes | |
CN110734482B (zh) | 一种岷江百合WRKY转录因子基因LrWRKY4及应用 | |
CN110904122A (zh) | 一种苹果抗旱基因MdbHLH130及其应用 | |
EP0412912B1 (fr) | Plantes transgéniques appartenant à l'espèce Cucumis melo | |
EP1053336A1 (fr) | Promoteur inductible dans les plantes, sequence incorporant ce promoteur et produit obtenu | |
EP1053337A1 (fr) | Acide nucleique comprenant la sequence d'un promoteur inductible par un stress et une sequence d'un gene codant pour une stilbene synthase | |
WO2004072109A1 (fr) | Gene de resistance a aphis gossypii | |
WO2015185862A1 (fr) | Utilisation de micropeptides pour favoriser la symbiose mycorhizienne | |
US20210395764A1 (en) | Method for obtaining ricin/rca-free castor-oil plant seeds, ricin/rca-free castor-oil plants, method for identifying ricin/rca-free castor-oil plants, polynucleotides, constructs and uses thereof | |
EP3110832B1 (fr) | Plantes a rendement accru et methode d'obtention de telles plantes | |
WO2001029074A1 (fr) | Gene chimere codant pour un facteur de transcription myb30 et expression dans les plantes | |
US8569578B1 (en) | Generating transgenic potatoes with novel resistance to potato cyst nematodes by silencing nematode parasitism genes of CLE -1 and CLE-4s | |
CN115948430A (zh) | 梨醛脱氢酶PusALDH1及其编码基因和应用 | |
CN105713078B (zh) | 抗旱相关蛋白在调控植物抗旱性中的应用 | |
WO1993016187A1 (fr) | Plante portant des genes codant pour des enzymes de la voie de biosynthese des phytosterols, et procede d'obtention | |
CN111690665A (zh) | 一种分离自砂梨的具有抗黑斑病功能的基因PpHSP21及其应用 | |
CN113337522A (zh) | 棉花GhNFYC4基因在促进植物开花中的应用 | |
US8129514B2 (en) | Nucleotide sequences for regulating gene expression in plant trichomes and constructs and methods utilizing same | |
CN117430677A (zh) | 蔓割病抗性相关蛋白IbCEIL1及其相关生物材料和应用 | |
Jian-Jun et al. | Expression of protein elicitor-encoding gene pemG1 in tobacco (Nicotiana tobacum cv. Samsun NN) plants and enhancement of resistance to TMV | |
WO2002006443A2 (fr) | Promoteur inductible de lipoxygenase, cassettes d'expression le comprenant et plantes transformees | |
FR2954779A1 (fr) | Gene gpav de resistance aux nematodes chez les solanacees | |
FR2984076A1 (fr) | Surproduction de jasmonates dans des plantes transgeniques |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 99804094.0 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 09622257 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2320401 Country of ref document: CA Ref document number: 2320401 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 24292/99 Country of ref document: AU |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999903742 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1999903742 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWG | Wipo information: grant in national office |
Ref document number: 24292/99 Country of ref document: AU |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1999903742 Country of ref document: EP |