EP2187737A1 - Procede d'amelioration de la resistance des vegetaux au stress et produits correspondants - Google Patents
Procede d'amelioration de la resistance des vegetaux au stress et produits correspondantsInfo
- Publication number
- EP2187737A1 EP2187737A1 EP08803646A EP08803646A EP2187737A1 EP 2187737 A1 EP2187737 A1 EP 2187737A1 EP 08803646 A EP08803646 A EP 08803646A EP 08803646 A EP08803646 A EP 08803646A EP 2187737 A1 EP2187737 A1 EP 2187737A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyamine
- stress
- carbohydrate
- plant
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 229920000768 polyamine Polymers 0.000 claims abstract description 33
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 29
- 239000000126 substance Substances 0.000 claims abstract description 5
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 claims description 26
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 23
- 229930006000 Sucrose Natural products 0.000 claims description 23
- 239000005720 sucrose Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 19
- 230000035882 stress Effects 0.000 claims description 17
- 239000005700 Putrescine Substances 0.000 claims description 13
- 239000002689 soil Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000006353 environmental stress Effects 0.000 claims description 10
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003344 environmental pollutant Substances 0.000 claims description 8
- 231100000719 pollutant Toxicity 0.000 claims description 8
- ATHGHQPFGPMSJY-UHFFFAOYSA-N spermidine Chemical compound NCCCCNCCCN ATHGHQPFGPMSJY-UHFFFAOYSA-N 0.000 claims description 8
- PFNFFQXMRSDOHW-UHFFFAOYSA-N spermine Chemical compound NCCCNCCCCNCCCN PFNFFQXMRSDOHW-UHFFFAOYSA-N 0.000 claims description 8
- 230000029553 photosynthesis Effects 0.000 claims description 6
- 238000010672 photosynthesis Methods 0.000 claims description 6
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 4
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 4
- 150000002016 disaccharides Chemical class 0.000 claims description 4
- 238000003973 irrigation Methods 0.000 claims description 4
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- 230000008723 osmotic stress Effects 0.000 claims description 4
- YNOGYQAEJGADFJ-UHFFFAOYSA-N oxolan-2-ylmethanamine Chemical compound NCC1CCCO1 YNOGYQAEJGADFJ-UHFFFAOYSA-N 0.000 claims description 4
- 229940063673 spermidine Drugs 0.000 claims description 4
- 229940063675 spermine Drugs 0.000 claims description 4
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 4
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- 239000002957 persistent organic pollutant Substances 0.000 claims description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical group C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims 1
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- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims 1
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- 241000196324 Embryophyta Species 0.000 description 42
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- MXWJVTOOROXGIU-UHFFFAOYSA-N atrazine Chemical compound CCNC1=NC(Cl)=NC(NC(C)C)=N1 MXWJVTOOROXGIU-UHFFFAOYSA-N 0.000 description 14
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- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
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- RWSXRVCMGQZWBV-WDSKDSINSA-N glutathione Chemical compound OC(=O)[C@@H](N)CCC(=O)N[C@@H](CS)C(=O)NCC(O)=O RWSXRVCMGQZWBV-WDSKDSINSA-N 0.000 description 2
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- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 102000001690 Factor VIII Human genes 0.000 description 1
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- 108010070675 Glutathione transferase Proteins 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 244000211187 Lepidium sativum Species 0.000 description 1
- 235000007849 Lepidium sativum Nutrition 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 241000244206 Nematoda Species 0.000 description 1
- 108091005461 Nucleic proteins Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 108700020962 Peroxidase Proteins 0.000 description 1
- 102000003992 Peroxidases Human genes 0.000 description 1
- 108010060806 Photosystem II Protein Complex Proteins 0.000 description 1
- FKUYMLZIRPABFK-UHFFFAOYSA-N Plastoquinone 9 Natural products CC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCC1=CC(=O)C(C)=C(C)C1=O FKUYMLZIRPABFK-UHFFFAOYSA-N 0.000 description 1
- 101710132582 Protein D1 Proteins 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 240000006394 Sorghum bicolor Species 0.000 description 1
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 102000019197 Superoxide Dismutase Human genes 0.000 description 1
- 108010012715 Superoxide dismutase Proteins 0.000 description 1
- 239000005621 Terbuthylazine Substances 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
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- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
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- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
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- 125000000623 heterocyclic group Chemical group 0.000 description 1
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- CMFNMSMUKZHDEY-UHFFFAOYSA-N peroxynitrous acid Chemical compound OON=O CMFNMSMUKZHDEY-UHFFFAOYSA-N 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- FKUYMLZIRPABFK-IQSNHBBHSA-N plastoquinone-9 Chemical compound CC(C)=CCC\C(C)=C\CC\C(C)=C\CC\C(C)=C\CC\C(C)=C\CC\C(C)=C\CC\C(C)=C\CC\C(C)=C\CC\C(C)=C\CC1=CC(=O)C(C)=C(C)C1=O FKUYMLZIRPABFK-IQSNHBBHSA-N 0.000 description 1
- 101150075980 psbA gene Proteins 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003642 reactive oxygen metabolite Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- -1 rivers Substances 0.000 description 1
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- 229910052711 selenium Inorganic materials 0.000 description 1
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- ODCWYMIRDDJXKW-UHFFFAOYSA-N simazine Chemical compound CCNC1=NC(Cl)=NC(NCC)=N1 ODCWYMIRDDJXKW-UHFFFAOYSA-N 0.000 description 1
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- FZXISNSWEXTPMF-UHFFFAOYSA-N terbutylazine Chemical compound CCNC1=NC(Cl)=NC(NC(C)(C)C)=N1 FZXISNSWEXTPMF-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
Definitions
- the invention relates to the field of plant resistance to natural environmental stresses, biotic or abiotic, or artificial.
- the invention relates to a method for improving the growth of the aerial part and the roots and / or the photosynthetic activity of plants that may be subjected to such stresses.
- the various stresses involved include, but are not limited to: (i) abiotic natural stress due to drought, temperature, soil salt content, ultraviolet radiation, hypoxia and / or anoxia, excess moisture, mineral or organic nutrient deficiencies (ii) biotic stress due to infections of bacterial, viral, parasitic or pest pathogens (insects, nematodes ”). (iii) stresses generated by xenobiotic pollution of industrial or agricultural origin.
- the invention will find, in particular, but not exclusively, its application in the improvement of so-called phytoremediation processes aimed at decontaminating soils polluted by various types of pollutants, atmospheric or otherwise, organic or heavy metals, consisting in cultivating on the soils in question. plants for fixing or degrading all or part of these pollutants.
- the endogenous production of reactive and unstable oxygen species such as ozone (O3), superoxide anion ((V), singlet oxygen, hydrogen peroxide (H2O2), hydroxyl radical (OH " ), nitrogen oxides (NO), and / or peroxynitrite (NO3), ... is an ineluctable process of aerobic life.
- the cellular metabolism is protected by various defense systems involving anti-cancer molecules. oxidizing agents (ascorbic acid, tocophenol, glutathione, caratenoids, etc.), enzymes (superoxide dismutase, catalase, peroxidases, etc.) and / or trace elements essential for enzymatic activities (copper, zinc, selenium).
- Oxidative stress is an aspecific phenomenon, a cellular result of numerous environmental stresses external to the cell and non-oxidative, such as cold, drought and salinity.
- the cold reduces the fluidity of the lipid membranes which hinders the mobility of plastoquinone as well as the reactivity of the enzymes involved in the dark phase of photosynthesis. This results in an increase in the endogenous concentration of oxygenated reactive species and an imbalance with the antioxidant defense systems.
- Dryness induces plant stomate closure, which decreases the concentration of CO 2 and hence photosynthetic efficiency.
- Water and osmotic stress are particularly studied because of their consequences on plants with agronomic value. These are increasingly frequent stresses, the importance of which increases with the increase in world demography. Thus, at present, only 20% of the world's millions of square kilometers are arable and this area decreases significantly each year due in particular to the development of intensive crops and global warming.
- genetic engineering techniques including the insertion of genes from bacteria or model halophilic plants in the genome of certain cultivated species (tomatoes, rice, wheat ..) involve the use of GMOs whose societal acceptability is not admitted yet.
- the present non-specific plant / stress couple invention therefore has the advantages of being applicable to different plants subjected to different types of environmental stress. It involves non-toxic, biodegradable, environmentally friendly compounds readily available commercially at low cost and in large quantities. The method makes it possible to increase the physiological mechanisms of defenses against environmental stresses and is easy to implement on a large scale and economically advantageous.
- the invention will prove particularly useful for the rehabilitation of soils contaminated with pesticides that induce oxidative stress and inhibit photosynthesis, such as, in particular, triazines.
- Triazines are heterocycles with three nitrogen atoms, some of which are used as herbicides (atrazine, simazine and terbuthylazine), especially in maize crops. These compounds are a major source of pollution worldwide. For example, in France, although their use has been banned since June 30, 2003, and following decades of use, these products and their degradation products are found in the environment (soils, rivers, groundwater, drinking water reserves ...) at rates up to ten times higher than the threshold formerly authorized (0.1 mg / L). Particularly polluted are certain sites of storage, production or accidental spreading of products. Their use is not banned everywhere since atrazine is still widely used, especially in the United States and in developing countries.
- Atrazine (2-chloro-4-ethylamino-6-isopropylamine-1,3,5-triazine) is a molecule that inhibits photosynthesis (specifically photosystem II), that is, the transformation of light energy into electrochemical energy, inevitably generating an excess of activated species of oxygen responsible for serious cellular damage.
- atrazine binds to the protein D1, a protein involved in photosynthesis, thereby blocking the latter by seriously affecting the essential functions of the plant.
- Some biological coping mechanisms allow plants to protect themselves from attacks caused by triazines. Among them, let us note the resistance induced by the natural genetic mutation of the psbA gene coding for the D1 protein.
- Atrazine resistance can also result from a biochemical adaptation of the plant.
- sorghum can "immunize” against atrazine by fighting against free radicals by increasing its enzymatic activity linked to Glutathione-S-transferases.
- transgenic plants incorporating a set of bacterial genes coding for atrazine degradation can grow using organic pollutants as a source of carbon and energy leading to decontamination of the site.
- Some physiological mechanisms involved have been elucidated such as the stabilization of nucleic acids, the induction of certain syntheses of nucleic acids and proteins, especially during cell division, the stabilization of cell membranes and the increase of their permeability to certain substances.
- the object of the present invention is to provide a method for improving the stress resistance of plants, effective and simple to implement.
- one of the objectives of the present invention is to present such a method allowing an increased efficiency of the usual methods of phytoremediation.
- the invention also aims to achieve a technically improved process while remaining economically interesting. 4. Presentation of the invention
- the invention which relates to a method for improving the resistance of a plant to at least one type of stress, said process being characterized in that it comprises at least one step of cultivating at least one plant in the presence of at least one exogenous carbohydrate, dissolved in water and assimilable by said plant and at least one molecule of the family of polyamines or of a substance containing said molecule of the family of polyamines.
- the process according to the invention may in particular be used to improve the resistance of plants to various environmental stresses, whether they be of natural origin such as heat stress, water stress, osmotic stress, or whether they come from human activity such as the presence of a pollutant of metallic or organic nature.
- the process of the invention proposes in an original way to grow plants on soils, in the presence of at least one carbohydrate, and at least one polyamine, thereby stimulating the growth of the plants while strengthening the mechanisms of resistance to stress. It is recommended to bring these activators several times during treatment.
- many carbohydrates available to the plant can be used, alone or as a mixture, for the implementation of the invention.
- a monosaccharide, a disaccharide, a tri-saccharide, or a mixture thereof, or residues of the sugar industry may be used.
- the carbohydrate will be sucrose.
- different polyamines can be made to the plant.
- the polyamine used will be of biological origin and will be chosen from the group including putrescine, spermidine, spermine, cadaverine or by a composition including at least one of these compounds and / or will be selected from the group consisting of diethylene triamine, triethylene tetramine, tetraethylene pentamine, tetrahydrofurfuryl amine, or a composition including at least one of its compounds.
- the polyamine of biological origin will be putrescine.
- the quantities of sugars and polyamines brought to the plant will vary according to many factors related to, among other things, the nature of the soil, the climatic conditions, the nature of the plant, the nature of the stress.
- a carbohydrate concentration of between 10 to 90 millimolar in the water of irrigation and a polyamine concentration of between 3 and 6 millimolar in the water of irrigation will be used.
- the carbohydrate and the polyamine will be applied simultaneously to the plant, for example, by coating the seeds, or in liquid or solid form during the growth of the plant.
- an active composition comprising at least one carbohydrate and at least one polyamine may be administered directly to the roots and / or foliage of the plants.
- the invention also relates to any product for the implementation of such a method including a mixture of at least one exogenous carbohydrate and at least one polyamine.
- the active product will contain a carbohydrate selected from the group consisting of a monosaccharide, a disaccharide, a trisaccharide saccharide, especially glucose or sucrose, or a composition including at least one of these compounds and a polyamine selected from the group consisting of putrescine, spermidine, spermine, cadaverine, diethylene triamine, triethylenetetramine, tetraethylene pentamine, tetrahydrofurfuryl amine, or a composition including at least one of these compounds.
- a carbohydrate selected from the group consisting of a monosaccharide, a disaccharide, a trisaccharide saccharide, especially glucose or sucrose, or a composition including at least one of these compounds and a polyamine selected from the group consisting of putrescine, spermidine, spermine, cadaverine, diethylene triamine, triethylenetetramine, tetraethylene pentamine, tetrahydrofurfur
- the active product consists of a mixture of sucrose and putrescine.
- the product will consist of an aqueous or solid mixture of a molar ratio of 5 to 10 ((carbohydrates) / (polyamines).
- said product constitutes a seed coating product.
- said product constitutes a product to be diluted in a liquid for watering plants.
- FIG. 1 shows photographs of seedlings cultured in the presence of atrazine (1 ⁇ M), without any additive, in the presence of 3% of sucrose and, according to the present invention in the presence of 3% of sucrose and 3 to 6 mM. putrescine);
- FIG. 2 comparatively shows the effect of simple sucrose treatment and the effect of the invention on the development of biomass (% fresh weight);
- FIG. 3 comparatively describes the effect of the simple sucrose treatment and the effect of the invention on the photosynthetic activity ( ⁇ g of chlorophyll produced / seedling);
- FIG. 4 comparatively illustrates the effect of simple sucrose treatment and the effect of the invention on the development of the root principal (cm);
- FIG. 5 comparatively quantifies the effect of simple sucrose treatment and the effect of the invention on the development of root primordia of the plant;
- FIGS. 6 to 9 are photographs showing different phases of the cellular process of setting up a root primordium, at the origin of the secondary root system. 7. Description of an embodiment of the invention
- the inventors have carried out experiments demonstrating that the addition of polyamines and exogenous carbohydrates soluble in water to the culture medium of the plant Arabidopsis thaliana allowed to confer on it an increased tolerance to atrazine itself at high concentrations.
- a mixture of sucrose and putrescine were tested.
- sucrose at 3% which corresponds to a concentration of 87 millimolar, was added thereto.
- sucrose and putrescine dramatically stimulates the resistance and remediation of atrazine, as indicated by the size of seedlings in the middle of Figure 1.
- FIG. 1 which compares the root development of the seedlings grown according to the invention and according to the two controls, shows a stimulation of this root system improved by 75% by the treatment proposed by the present invention (3% sucrose and 2 to 6%). mM putrescine), compared to the treatment of simply adding 3% sucrose to the culture medium.
- FIG. 2 shows, for its part, a 75% increase in biomass development (% fresh weight) after a treatment according to the invention compared with the treatment with the sole addition of sucrose.
- Figure 3 shows a 70% increase in potential photosynthetic activity ( ⁇ g chlorophyll produced / seedling) after a treatment according to the invention compared to the treatment with the sole addition of sucrose.
- Figure 4 shows a 100% improvement in the development of the main root (cm) of plantlets after a treatment according to the invention compared to treatment with the sole addition of sucrose.
- FIG. 5 shows that the number of root primordia, and therefore of secondary roots, increases by about a factor 8 in the seedlings after a treatment according to the invention compared to treatment with the sole addition of sucrose.
- the pericycle cells first undergo a series of anticlinal divisions, perpendicular to the axis of the root, as shown in Figure 6. These cells then undergo periclinal divisions. , parallel to the axis of the root, as shown in Figure 7 which increases the cell mass (see Figure 8).
- the formed organ begins to take the form of a root and pierces the tissues that cover it to lengthen and form a functional root, as shown in Figure 9.
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Cultivation Of Plants (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0757372A FR2920640B1 (fr) | 2007-09-06 | 2007-09-06 | Procede d'amelioration de la resistance des vegetaux au stress et produits correspondants. |
| PCT/EP2008/061676 WO2009030723A1 (fr) | 2007-09-06 | 2008-09-04 | Procédé d'amélioration de la résistance des végétaux au stress et produits correspondants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2187737A1 true EP2187737A1 (fr) | 2010-05-26 |
Family
ID=39262168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08803646A Withdrawn EP2187737A1 (fr) | 2007-09-06 | 2008-09-04 | Procede d'amelioration de la resistance des vegetaux au stress et produits correspondants |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100323890A1 (fr) |
| EP (1) | EP2187737A1 (fr) |
| CA (1) | CA2697721A1 (fr) |
| FR (1) | FR2920640B1 (fr) |
| WO (1) | WO2009030723A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112019027951B1 (pt) * | 2017-07-03 | 2023-02-14 | Fertinagro Biotech, S.L | Método de obtenção de um fertilizante líquido a partir de biomassa vegetal |
| CN118947704B (zh) * | 2024-08-01 | 2025-05-09 | 北京市农林科学院 | 双糖在增强农作物抗寒性中的应用 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54163526A (en) * | 1978-06-14 | 1979-12-26 | Meito Sangyo Kk | Sugar or sugar alcohol sulfuric acid ester amine salt* its manufacture and application |
| US4802905A (en) * | 1987-03-10 | 1989-02-07 | Air Products And Chemicals, Inc. | Method for protecting plants and plant matter from stress |
| EP0378921A3 (fr) * | 1988-12-21 | 1990-09-19 | Idaho Research Foundation, Inc. | Augmentation de production de métabolites végétaux par provocation temporelle |
| FR2814471B1 (fr) * | 2000-09-27 | 2004-12-17 | Centre Nat Rech Scient | Utilisation de polymeres et d'oligomeres de xyloglucane, et de composes derives, en tant que produits phytosanitaires et biofertilisants |
| FR2859600B1 (fr) * | 2003-09-12 | 2005-12-30 | Univ Rennes | Procede d'amelioration de la phyto-remediation des sites pollues par l'apport aux plantes de glucides exogenes |
-
2007
- 2007-09-06 FR FR0757372A patent/FR2920640B1/fr not_active Expired - Fee Related
-
2008
- 2008-09-04 US US12/675,841 patent/US20100323890A1/en not_active Abandoned
- 2008-09-04 CA CA2697721A patent/CA2697721A1/fr not_active Abandoned
- 2008-09-04 WO PCT/EP2008/061676 patent/WO2009030723A1/fr not_active Ceased
- 2008-09-04 EP EP08803646A patent/EP2187737A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009030723A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009030723A1 (fr) | 2009-03-12 |
| CA2697721A1 (fr) | 2009-03-12 |
| US20100323890A1 (en) | 2010-12-23 |
| FR2920640B1 (fr) | 2009-12-18 |
| FR2920640A1 (fr) | 2009-03-13 |
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