WO2012147561A1 - 不定根形成促進剤、該不定根形成促進剤を含有する発根用培地、および、該不定根形成促進剤を用いるクローン苗の生産方法 - Google Patents
不定根形成促進剤、該不定根形成促進剤を含有する発根用培地、および、該不定根形成促進剤を用いるクローン苗の生産方法 Download PDFInfo
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- WO2012147561A1 WO2012147561A1 PCT/JP2012/060326 JP2012060326W WO2012147561A1 WO 2012147561 A1 WO2012147561 A1 WO 2012147561A1 JP 2012060326 W JP2012060326 W JP 2012060326W WO 2012147561 A1 WO2012147561 A1 WO 2012147561A1
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- adventitious root
- rooting
- root formation
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- 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
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/04—Plant cells or tissues
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- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/46—N-acyl derivatives
Definitions
- the present invention relates to an adventitious root formation accelerator, a rooting medium containing the adventitious root formation accelerator, and a method for producing a clonal seedling using the adventitious root formation accelerator.
- the cutting method in which cuttings are inserted into the floor or medium and rooted, and the tissue culture method in which plant tissue is cultured and shoots are collected and rooted are used in agricultural production, afforestation, breeding, and other fields. Is used as a mass production means of plants for mass production of homogeneous plants (seedlings) having traits suitable for the purpose. In these methods, the rooting ability of plant tissues greatly affects the productivity of cloned seedlings, so it is important to improve rooting ability.
- Patent Document 1 discloses that rooting of a plant selected from Eucalyptus plants and Acacia plants is treated with pacloputrazole before being harvested as cuttings. It is described that ability is promoted.
- Patent Document 2 Japanese Patent Application Laid-Open No. 2003-113148
- Patent Document 3 JP-A-2006-117608
- Patent Document 3 describes that the compound described in Patent Document 2 can prevent monocotyledonous diseases.
- Patent Document 1 has insufficient rooting ability for plants, and in particular, when applied to plants with low rooting ability (for example, Eucalyptus plants), the rooting ability is improved. I could not expect.
- the technique of Patent Document 2 is a technique for controlling abscisic acid relating to plant growth, and is different from a technique for promoting only the rooting of cuttings, that is, the differentiation of root tissues as in the cutting method.
- the conditions for promoting rooting of cuttings are different from the conditions for promoting the growth of plant bodies, and the conditions for stopping the growth are often promoted for rooting.
- the technique of Patent Document 3 is a technique related to disease control of monocotyledons, particularly rice blast control, and is different from the technique related to cuttings and the technique related to rooting of cuttings.
- An object of the present invention is to provide a compound useful as an active ingredient of an adventitious root rooting promoter that promotes rooting from plants and improves the rooting rate. Furthermore, for improving the productivity of clone seedlings by methods such as cutting methods, tissue culture methods, etc., particularly clone seedlings belonging to plant species having low rooting ability, using the adventitious root rooting promoter containing the active ingredient An object of the present invention is to provide a rooting method and a rooting medium.
- the present invention provides the following [1] to [4].
- [1] A plant adventitious root formation promoter containing abamine.
- [2] A plant shoot rooting medium containing the adventitious root formation promoter according to [1] above.
- [3] A method for producing a cloned seedling, wherein a plant shoot is cultivated in the presence of the adventitious root formation promoter according to [1] and rooted from the shoot.
- [4] A method for producing a cloned seedling, wherein plant shoots are cultivated in the rooting medium according to [2] and rooted from the shoots.
- the present invention can contribute to large-scale and rapid production of cloned seedlings of a wide variety of plant species, and in particular, even a plant species with low rooting ability can produce cloned seedlings in large amounts and quickly. It is expected to open the way to its industrial use.
- the plant adventitious root formation promoter of the present invention contains abamine as an active ingredient.
- Abamine is [[3- (3,4-dimethoxyphenyl) -allyl]-(4-fluorobenzyl) -amino] -acetic acid methyl ester and has a structure represented by the following formula (1).
- abamine is not particularly limited.
- abamine derived from a natural product or abamine synthesized by a chemical reaction can be used.
- Examples of the synthesis method by chemical reaction include methods described in documents such as JP-A No. 2003-113148.
- the plant adventitious root formation promoter of the present invention only needs to contain abamine, and if necessary, other components (for example, other adventitious root formation promoters, adventitious roots such as auxin, etc.) unless they are contrary to the object of the present invention.
- a plant hormone activity promoter for formation examples include adventitious root formation promoters and auxin activity promoters described in Japanese Patent Application No. 2010-101642, and adventitious root formation promoters and plant hormone activity promoters described in Japanese Patent Application No. 2010-101642. Is mentioned.
- the adventitious root formation promoter of the present invention exhibits an adventitious root formation promoting effect by being present when cultivating plants.
- the kind of plant is not particularly limited. Plants can be classified into woody plants and herbaceous plants, but the adventitious root formation promoter of the present invention can be applied to any of these, preferably applied to woody plants, and rooted more than herbaceous plants. More preferably, it is applied to woody plants with poor performance. Examples of woody plants include Eucalyptus plants, Pinus plants, Cryptomeria plants (such as Cryptomeria japonica), Prunus plants (Prunus spp.), And Ume.
- eucalyptus known for its poor rooting is preferable, eucalyptus globulae, round leaf eucalyptus, etc. are more preferable, and eucalyptus globulas are more preferable.
- herbaceous plants to which the adventitious root formation promoter of the present invention can be applied include plants belonging to the Brassicaceae, Eggplant family, Gramineae, Legume family, etc., but are not limited to these plants.
- it is generally applicable to vegetables such as solanaceous plants as well as food-producing plants such as rice, wheat and other grains, beans, and corn.
- I have great expectations.
- plants belonging to Brassicaceae, Eggplant, Gramineae, Leguminosae etc. Arabidopsis thaliana, tobacco (Nicotiana tabacum), rice (Oryza sativa), Miyakogusa (Lotus corniculatus var. Because it is used, there are great expectations in terms of contributing to the development of research and development.
- the plant may be a part or all of the plant body, but is usually a part of the plant body, preferably a shoot, in that it is expected to form adventitious roots.
- Shoot refers to any organization that has rooting ability.
- the tissue include branches, stems, apical buds, buds, adventitious buds, leaves, cotyledons, hypocotyls, adventitious embryos, shoot primordia, and the like.
- the origin of the shoot is not particularly limited, and may be a tissue obtained from an individual plant growing in a greenhouse or outdoors, a cultured tissue obtained by a tissue culture method, or a part of a natural plant body It may be an organization.
- the shoot can be efficiently obtained from the main plant or multi-bud of the cutting ear. Among them, cuttings (cutting ears obtained from the mother plant), polyblasts obtained by aseptically culturing organs collected from the mother plant, or foliage obtained by aseptically growing the organs Preferably there is.
- the multi-bud can be induced by cutting out tissues such as apical buds and axillary buds from the plant to which the present invention is applied to produce cloned seedlings, and culturing them.
- a polyblast can be formed according to the method and conditions described in JP-A-8-228621. The method and conditions are as follows.
- tissues such as apical buds and axillary buds are collected from the plant as a material, and about the collected tissues, an aqueous sodium hypochlorite solution having an effective chlorine content of about 0.5% to about 4% or an effective chlorine content of about 5%
- Surface sterilization is performed by immersing in an aqueous solution of about 15% hydrogen peroxide for about 10 minutes to about 20 minutes.
- this is washed with sterilized water, inserted into a solid medium, the buds are opened, and the elongated foliage is subcultured in a medium having the same composition to form a multi-bud.
- the solid medium is 1 to 5% by weight of sucrose, and benzyladenine (hereinafter abbreviated as BA) as a plant hormone is about 0.02 mg / l or more and about Murashige Sukug (hereinafter abbreviated as MS) medium containing 1 mg / l or less, gellan gum of about 0.2 wt% to about 0.3 wt%, or agar of about 0.5 wt% to about 1 wt%, or MS It is preferable to use a modified MS medium in which the ammonium nitrate component and potassium nitrate component of the medium are halved.
- the shoots are actively extended from the multi-buds thus formed.
- the multiblasts themselves can be maintained and proliferated by appropriately dividing them and culturing them in a medium having the same composition as the medium used for the formation of the multibuds.
- cutting ears may be used as shoots.
- the cuttings may be at least part of the plant, branches such as green branches (current year branches), mature branches (branches extending before the previous year); buds such as top buds and buds; leaves, cotyledons; hypocotyls Etc. are exemplified.
- the cuttings in the case of woody plants are usually green branches or mature branches, and the cuttings in the case of herbaceous plants are usually leaves or buds, but are not limited thereto.
- the method for cultivating a plant in the presence of the adventitious root formation promoter of the present invention is not particularly limited, and can be appropriately selected from the type, site, state, and the like of the plant. Specifically, the following methods are exemplified: a method of culturing a plant (preferably a shoot) in a rooting medium containing an adventitious root formation promoter; and a solution containing an adventitious root formation promoter as a plant (preferably a shoot). How to contact. When the cultured tissue obtained by the tissue culture method is used as the shoot, the former is preferable, and when the cutting head is used as the shoot, both the former and the latter are preferable.
- the concentration of the adventitious root formation promoter in the rooting medium is preferably about 0.01 ⁇ M or more and about 100 ⁇ M or less, more preferably about 0.1 ⁇ M or more. It is about 10 ⁇ M or less, particularly preferably about 0.5 ⁇ M or more and about 5 ⁇ M or less.
- the method for the contact is not particularly limited, and is appropriately selected from the kind, site, state, cultivation method, etc. of the plant. Yes.
- a method of directly spraying an adventitious root formation accelerator solution onto a shoot and a method of infiltrating a support with an adventitious root formation accelerator solution can be mentioned.
- the adventitious root formation accelerator solution can be prepared by dissolving the adventitious root formation accelerator in a suitable solvent (for example, water).
- a suitable solvent for example, water
- water include deionized water, distilled water, reverse osmosis water, and tap water, and any of them can be used.
- concentration of the adventitious root formation accelerator in the adventitious root formation accelerator solution is preferably about 0.01 ⁇ M or more and about 100 ⁇ M or less, more preferably about 0.1 ⁇ M or more and about 10 ⁇ M or less, and about 0.5 ⁇ M or more and about 5 ⁇ M. Even more preferably:
- the adventitious root formation accelerator solution When adhering the adventitious root formation accelerator solution directly to a plant (preferably, shoot), the adventitious root formation accelerator solution may be sprayed on a part or the whole of the plant in the form of a mist using a spray or the like.
- the application amount of the adventitious root formation accelerator solution cannot be defined unconditionally depending on the concentration of the adventitious root formation accelerator in the adventitious root formation accelerator solution, but generally about 0.5 ml or more and about 5.0 ml per shoot. The following is preferable, and about 1.0 ml or more and about 3.0 ml or less is more preferable.
- the number of spraying may be one time or two or more times, but is preferably sprayed at least at the start of cultivation. Depending on the cultivation conditions, additional spraying may be performed as appropriate during the cultivation period (for example, every few days (every 2 to 3 days)).
- the watering amount from the upper part is preferably about 1.0 ml or more and about 10 ml or less, more preferably about 3.0 ml or more and about 5.0 ml or less per one plant (preferably shoot).
- the adventitious root formation promoter solution may be wetted substantially uniformly on the support.
- a rooting medium may be separately prepared in addition to the adventitious root formation accelerator solution, and the support may be moistened with both, as described above.
- the rooting medium means a medium used for rooting from plants (preferably shoots).
- the rooting medium preferably contains silver ions and / or antioxidants, and more preferably contains both silver ions and antioxidants.
- Silver ions may be added to the medium as a silver compound (silver ion source) such as silver thiosulfate (STS, AgS 4 O 6 ) or silver nitrate.
- STS silver thiosulfate
- STS silver thiosulfate
- STS silver thiosulfate
- silver nitrate silver nitrate
- STS is preferable as a silver ion source used in the present invention, since healthy roots and / or elongation is promoted when added to a medium and cultured for shoots. This is presumably because silver ions derived from STS take the form of silver thiosulfate ions in the medium and are negatively charged.
- the concentration of silver ions added to the rooting medium depends on the type of silver ion source and other culture conditions, but the concentration of the silver ion source is preferably about 0.5 ⁇ M or more and about 6 ⁇ M or less, and about 2 ⁇ M or more and about 6 ⁇ M or less is more preferable.
- antioxidant for example, known antioxidants such as ascorbic acid and sulfite can be used. Among them, ascorbic acid is preferable as an antioxidant used in the present invention because of its low persistence in the medium.
- concentration of the antioxidant added to the rooting medium is preferably about 5 mg / l or more and about 200 mg / l or less, more preferably about 20 mg / l or more and about 100 mg / l or less.
- the rooting medium used in the present invention may contain inorganic components, carbon sources, vitamins, amino acids, plant hormones and the like in addition to the above components.
- Inorganic components include elements such as nitrogen, phosphorus, potassium, sulfur, calcium, magnesium, iron, manganese, zinc, boron, molybdenum, chlorine, iodine, cobalt, and one or more elements selected from these elements
- Inorganic salts are exemplified.
- the inorganic salt include potassium nitrate, ammonium nitrate, ammonium chloride, sodium nitrate, potassium monohydrogen phosphate, sodium dihydrogen phosphate, potassium chloride, magnesium sulfate, ferrous sulfate, ferric sulfate, manganese sulfate, and zinc sulfate.
- 1 type can be selected from the said specific example, or it can use in combination of 2 or more type.
- Rooting medium used in the present invention preferably contains nitrogen, phosphorus and potassium as essential elements. Therefore, among the specific examples of the above-mentioned inorganic components, nitrogen, phosphorus, potassium, inorganic salts containing nitrogen, inorganic salts containing phosphorus, and inorganic salts containing potassium are preferable, and nitrogen, phosphorus, potassium, and nitrogen are included. Inorganic salts are more preferred.
- the inorganic component is preferably added so that the concentration in the rooting medium is about 0.1 ⁇ M or more and about 100 mM or less, and it is added so that the concentration is about 1 ⁇ M or more and about 100 mM or less. More preferred. In the case of a combination of two or more, it is preferably added so as to be about 0.1 ⁇ M or more and about 100 mM or less, and more preferably about 1 ⁇ M or more and about 100 mM or less.
- the carbon source compounds such as carbohydrates such as sucrose and derivatives thereof; organic acids such as fatty acids; primary alcohols such as ethanol can be used.
- the carbon source is preferably added to the rooting medium so as to be about 1 g / l or more and about 100 g / l or less, and more preferably about 10 g / l or more and about 100 g / l or less.
- the culture medium does not need to contain a carbon source, and preferably does not contain it.
- Organic compounds that can serve as a carbon source such as sucrose can also serve as a carbon source for microorganisms. Therefore, when using a medium supplemented with these, it is necessary to culture in a sterile environment, but use a medium that does not contain a carbon source. This makes it possible to culture in a non-sterile environment.
- vitamin B1 biotin, thiamine (vitamin B1), pyridoxine (vitamin B4), pyridoxal, pyridoxamine, calcium pantothenate, inositol, nicotinic acid, nicotinamide, and / or riboflavin (vitamin B2) are used.
- Vitamin B1 biotin, thiamine (vitamin B1), pyridoxine (vitamin B4), pyridoxal, pyridoxamine, calcium pantothenate, inositol, nicotinic acid, nicotinamide, and / or riboflavin (vitamin B2) are used.
- vitamins one type can be selected from the above specific examples, or two or more types can be used in combination. It is preferable to add vitamins so that the concentration in the rooting medium is about 0.01 mg / l or more and about 200 mg / l or less in the rooting medium in the case of one kind.
- it is added so as to be not less than / l and not more than about 100 mg / l. In the case of a combination of two or more, it is preferable to add about 0.01 mg / l or more to about 150 mg / l or less in the rooting medium. More preferably, it is added.
- amino acids examples include glycine, alanine, glutamic acid, cysteine, phenylalanine and / or lysine.
- amino acids one type can be selected from the above specific examples, or two or more types can be used in combination.
- the amino acids are preferably added so that the concentration in the rooting medium is about 0.1 mg / l or more and about 1000 mg / l or less in the rooting medium in the case of one kind. In the case of a combination, it is preferable to add about 0.2 mg / l to about 1000 mg / l in the rooting medium.
- auxins and / or cytokinins can be used as plant hormones.
- auxins include naphthalene acetic acid (NAA), indole acetic acid (IAA), p-chlorophenoxyacetic acid, 2,4-dichlorophenoxyacetic acid (2,4D), indolebutyric acid (IBA), and derivatives thereof.
- NAA naphthalene acetic acid
- IAA indole acetic acid
- IBA 2,4-dichlorophenoxyacetic acid
- IBA indolebutyric acid
- cytokinins include benzyladenine (BA), kinetin, zeatin, and derivatives thereof, and one or more selected from these can be used in combination.
- auxins As plant hormones, only auxins, only cytokinins, or a combination of both auxins and cytokinins can be used.
- it is preferably added to the rooting medium so as to be about 0.01 mg / l or more and about 10 mg / l or less, and about 0.02 mg / l or more and about 10 mg / l. It is more preferable to add so that it may become 1 or less.
- a medium known as a plant tissue culture medium may be used as a rooting medium.
- An adventitious root formation promoter, silver ions and / or an antioxidant, a carbon source, or plant hormones may be appropriately added to the medium as necessary.
- Examples of the known medium for plant tissue culture include MS medium, Rinsmeier Skoog medium, white medium, Gamborg B-5 medium, and niche niche medium. Of these, MS medium and Gamborg B-5 medium are preferred. These media can be used by appropriately diluting them as necessary.
- the rooting medium may be either a liquid medium or a solid medium, but the liquid medium is preferable in terms of work efficiency and less damage to the roots during transplantation.
- the medium composition can be mixed and prepared and used as it is.
- the medium composition may be mixed and prepared in the same manner as the liquid medium, or may be used after being adjusted and solidified with a solidifying agent such as agar or gellan gum.
- the amount of the solidifying agent added to the medium varies depending on the kind of the solidifying agent and the composition of the medium. When the solidifying agent is agar, it is preferably 0.5% by weight or more and 1% by weight or less. When the solidifying agent is gellan gum, the content is preferably 0.2% by weight or more and 0.3% by weight or less.
- the method of inserting a plant (preferably shoot) into the rooting medium can be appropriately selected depending on the type of medium, culture conditions, and the like.
- the rooting medium is a solid medium
- the root of the shoot may be directly inserted into the rooting medium and cultured.
- the rooting medium is a liquid medium, for example, a support described later may be wetted with a rooting medium, and then the base of the shoot may be inserted and cultured.
- a physical stimulus such as scratching the base of the shoot when it is inserted into the rooting medium.
- the base of the shoot means an area where the root is formed at one end of the shoot (opposite to the end where the leaf is formed).
- the base in the case of using a multi-bud as a shoot is an area having a cut surface when dividing the multi-bud.
- the size (size, shape, etc.) of the scratch on the base of the chute is not particularly limited.
- instruments such as scissors and knives can be used.
- the support is a support for supporting a plant (preferably a shoot).
- a rooting medium especially a solid medium
- a support may be unnecessary. In other cases, a support is usually used.
- the support is preferably a support that can be held in a state where the shoot is pointed during the cultivation period.
- a liquid rooting medium When a liquid rooting medium is used for cultivation, it is usually used by infiltrating a support.
- the support is preferably a support that can be infiltrated with a liquid, and among them, a support that can be wetted substantially uniformly by a solution medium containing adventitious root formation or a liquid medium containing an adventitious root formation accelerator is preferable.
- a liquid medium not containing an adventitious root formation accelerator solution
- an adventitious root formation accelerator solution may be added separately to the support, or a pre-prepared adventitious root.
- a liquid medium containing a formation promoter may be added to the support.
- a conventional support can be used and is not particularly limited.
- the support include natural soils such as sand and red bean clay; artificial soils such as rice husk charcoal, coconut fiber, vermiculite, perlite, peat moss, and glass beads; and porous molded products such as foamed phenol resin and rock wool. be able to.
- the rooting bed can be prepared by placing such a support in a culture vessel and moistening it with an adventitious root formation accelerator solution or a liquid medium containing an adventitious root formation accelerator. When the rooting medium is a solid medium, the rooting bed can be prepared by placing the solid medium directly into the culture vessel.
- a culture container for containing a rooting medium or a support can be used.
- a conventional culture vessel can be used, and is not particularly limited.
- the culture vessel may be a closed type or an open type, but a closed type culture vessel is preferred.
- a branch As a chute, it is preferable to use a closed culture vessel as the culture vessel. This makes it easy to place the chute under high humidity, so that the transpiration action of the leaves on the branches is suppressed, and the conventional partial excision processing of the leaves can be omitted.
- the culture container is a container capable of supplying carbon dioxide into the container.
- a container having an opening covered with a carbon dioxide permeable membrane is exemplified.
- the shape of the opening is not particularly limited.
- the material for the carbon dioxide permeable membrane is not particularly limited, and examples thereof include polytetrafluoroethylene.
- the pore diameter of the membrane is not particularly limited, and examples thereof include membranes having a pore diameter of about 0.1 ⁇ m or more and about 1 ⁇ m or less.
- the cultivation conditions for cultivating the plant are not particularly limited as long as it is a condition that can be rooted from the plant. Although it is difficult to unconditionally define the cultivation conditions depending on the type of plant, site, state, type of rooting medium, etc., for example, the temperature is more preferably about 23 ° C. or higher and about 28 ° C. or lower.
- Light intensity is expressed as a photosynthetic photon flux density of about 10 .mu.mol / m is preferably from 2 / s or more to about 1000 micro mol / m 2 / s, about 50 [mu] mol / m 2 / s or more to about 500 [mu] mol / m 2 / s The following is more preferable. In either case, rooting from the shoot is usually observed within about 2 to 5 weeks.
- Cultivation is preferably performed under irradiation with light containing a wavelength component of about 650 nm to about 670 nm and a wavelength component of about 450 nm to about 470 nm in a ratio of 9: 1 to 7: 3. It is more preferable to carry out the irradiation under the light containing 9: 1 to 8: 2. By irradiating with light containing such a wavelength component, rooting from a plant (preferably a shoot) can be further promoted.
- carbon dioxide gas in the cultivation environment it is usually 300 ppm or more and 2000 ppm or less, preferably 800 ppm or more and 1500 ppm or less.
- Control of the supply amount of carbon dioxide gas can be performed using equipment such as an artificial weather device, a culture vessel having a carbon dioxide permeable membrane in the opening, and the like.
- Humidity can be adjusted according to cultivation conditions such as plant type. Usually, it is 50% or more, preferably 60% or more. In the case of Eucalyptus plants, it is preferably 80% or more, and more preferably 85% or more. When the humidity is in the above range, rooting from plants can be promoted. There is no particular limitation on the upper limit of humidity.
- the light shielding rate is preferably 30% or more and 70% or less, and more preferably 40% or more and 60% or less.
- adventitious root rooting promoters of the present invention can be used to root adventitious roots from plants.
- a plant in which adventitious roots are rooted is usually called a cloned seedling.
- the adventitious root rooting promoter of the present invention for example, in the case of eucalyptus, 10 days to 90 days or less, depending on the type, part, and state of the plant
- it can be transplanted and grown in a seedling container, a nursery, etc., and used as a seedling that can be used for a predetermined purpose such as afforestation.
- a plant shoot can be rooted from the shoot by cultivating it in the presence of an adventitious root formation promoter.
- the reason for this is unknown, but as shown in Comparative Example below, in Abamine SG, rooting action is not recognized even though the structure is similar to that of Abamine. It is speculated that it is not an abscisic acid synthesis inhibitory action, which is a common action of abamine and abamine SG, but other actions.
- Eucalyptus clone A (G-004), which is a difficult root line of Eucalyptus globulus (hereinafter simply referred to as E. globulus), was used as a material for cuttings. That is, a spikelet having a length of 5 to 20 cm, a node length of 1 to 3 nodes, and a leaf length of about 2 to 6 leaves was cut out from a mother tree to prepare cuttings.
- the bases of the cuttings thus obtained were 1 ⁇ M each of abamine and abamine SG (synthesized according to the methods described in Examples 1 to 3 of JP-A-2003-113148), and STS (AgS 4 O 6 ) 4-fold diluted MS medium (composition: ammonium nitrate 412.5 mg / l, potassium nitrate 475 mg / l, potassium dihydrogen phosphate, 5 ⁇ M, ascorbic acid 50 mg / l as an antioxidant and IBA 2 mg / l as a plant hormone) 42.52 mg / l, potassium iodide 0.21 mg / l, a carbon source is not added to this medium.)
- Porous support made of foamed phenolic resin (made by Smithers Oasis, trade name: Oasis), carbon dioxide concentration 1000ppm, temperature 25 ° C, wavelength component of 650 ⁇ 670nm and 450 ⁇ And a wavelength component of 70 nm 8.2: in a proportion of
- a cubic culture vessel having a maximum dimension of 10 to 11.5 cm ⁇ width of 10 to 11.5 cm ⁇ height of 10.0 cm and a slightly protruding body was used.
- the top surface of the culture vessel is provided with one circular opening to which a polytetrafluoroethylene film (made by Millipore, trade name: Milliceal) having a pore diameter of 0.45 ⁇ m is attached.
- the concentration of carbon dioxide in the culture vessel is the concentration (about 1000 ppm) permeated from the membrane at the opening of the culture container because the carbon dioxide outside the culture vessel permeates through the membrane at the opening of the culture vessel. there were.
- Irradiation of the red light irradiation to the culture vessel was performed using a product name: CCFL light source unit and a manufacturer name: Nippon Medical Instruments Co., Ltd. as a light irradiation device.
- the humidity in the culture container was adjusted to 85% or more by sealing the culture container with parafilm.
- Abamine SG is [[3- (3,4-dimethoxyphenyl) -allyl]-(4-fluorobenzyl) -amino] -butyric acid methyl ester, and has a structure represented by the following formula (2).
- Example 2 Culturing was carried out in the same manner as in Example 1 except that a medium not containing adventitious root formation promoter was used. The results are shown in Table 1.
- Example 2 and Comparative Example 3 As a material for cuttings, E.I. Culturing was carried out in the same manner as in Example 1 and Comparative Example 1 except that Eucalyptus clone B (WA-002), which is an extremely difficult root line of Globulus, was used. The results are shown in Table 2.
- Example 4 Culturing was carried out in the same manner as in Example 2 except that a medium not containing an adventitious root formation promoter was used. The results are shown in Table 2.
- Example 3 As a material, a variety of tea (Camellia sinensis) was used. A spikelet having a length of 5 to 20 cm, a length of 1 to 3 nodes, and a length of 2 to 6 leaves was cut out from a mother tree of the tea to prepare cuttings.
- a spikelet having a length of 5 to 20 cm, a length of 1 to 3 nodes, and a length of 2 to 6 leaves was cut out from a mother tree of the tea to prepare cuttings.
- the base of the obtained cuttings was inserted into a support wetted with 4-fold diluted MS medium supplemented with 1 ⁇ M abamine and 10 mg / l IBA as a plant hormone.
- a support using a support packed with mixed soil of vermiculite and peat moss in a seedling tray (6 rows x 11 rows) with a square 4 cm long x 4 cm wide x 15 cm square pot, A total of 66 inserts per pot were inserted for the experiment.
- the inserted spike after insertion has a carbon dioxide concentration of 1000 ppm, a temperature of 25 ° C., a humidity of 60%, a wavelength component of 650 to 670 nm and a wavelength component of 450 to 470 nm in a ratio of 8.2: 1.8.
- the cells were cultured for 2 months under irradiation with red light having a bundle density of 51.3 ⁇ mol / m 2 / S.
- irradiation of red light irradiation was performed using a brand name: CCFL light source unit and a manufacturer name: Nippon Medical Chemical Co., Ltd. as a light irradiation device.
- Example 5 Culturing was carried out in the same manner as in Example 3 except that a medium not containing an adventitious root formation promoter was used. The results are shown in Table 3.
- the adventitious root rooting promoter of the present invention exhibits an excellent rooting effect regardless of the plant species, particularly even in extremely difficult rooting lines.
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Abstract
Description
〔1〕アバミンを含む植物の不定根形成促進剤。
〔2〕上記〔1〕に記載の不定根形成促進剤を含有する、植物のシュートの発根用培地。
〔3〕植物のシュートを上記〔1〕に記載の不定根形成促進剤の存在下栽培し、前記シュートから発根させる、クローン苗の生産方法。
〔4〕植物のシュートを上記〔2〕に記載の発根用培地にて栽培し、前記シュートから発根させる、クローン苗の生産方法。
不定根形成促進剤を含む発根用培地で植物を培養する場合、発根用培地中の不定根形成促進剤の濃度は、好ましくは約0.01μM以上約100μM以下、さらに好ましくは約0.1μM以上約10μM以下、とりわけ好ましくは約0.5μM以上約5μM以下である。
本発明では、植物のシュートを、不定根形成促進剤の存在下栽培することにより、前記シュートから発根させることができる。その理由は不明であるが、以下比較例として示すように、アバミンSGでは、アバミンと構造が近似するにもかかわらず発根作用が認められないことから、不定根形成促進剤による発根促進作用は、アバミンとアバミンSGの共通の作用であるアブシジン酸合成阻害作用ではなく、他の作用によると推察される。
挿し穂の材料として、ユーカリプタス・グロビュラス(Eucalyptus globulus、以下、単にE.グロビュラスと略記する。)の難発根系統であるユーカリクローンA(G-004)を用いた。すなわち採穂母樹から、5~20cmの長さ、節が1~3節、葉が2~6葉程度に伸長した穂木を切り出し、挿し穂を調製した。
不定根形成促進剤を添加しない培地を用いた以外は実施例1と同様にして培養を行った。結果を表1に示す。
挿し穂の材料として、E.グロビュラスの超難発根系統であるユーカリクローンB(WA-002)を用いた以外は実施例1及び比較例1と同様にして培養を行った。結果を表2に示す。
不定根形成促進剤を添加しない培地を用いた以外は実施例2と同様にして培養を行った。結果を表2に示す。
材料として、チャ(Camellia sinensis)の一品種を用いた。チャの採穂母樹から、5~20cmの長さ、節が1~3節、葉が2~6葉程度に伸張した穂木を切り出し、挿し穂を調製した。
不定根形成促進剤を添加しない培地を用いた以外は実施例3と同様にして培養を行った。結果を表3に示す。
Claims (4)
- アバミンを含む植物の不定根形成促進剤。
- 請求項1に記載の不定根形成促進剤を含有する、植物のシュートの発根用培地。
- 植物のシュートを請求項1に記載の不定根形成促進剤の存在下栽培し、前記シュートから発根させる、クローン苗の生産方法。
- 植物のシュートを請求項2に記載の発根用培地にて栽培し、前記シュートから発根させる、クローン苗の生産方法。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2012248582A AU2012248582B2 (en) | 2011-04-28 | 2012-04-17 | Adventitious root formation promoter, rooting medium containing adventitious root formation promoter, and production method for clone seedlings using adventitious root formation promoter |
| BR112013020502A BR112013020502A8 (pt) | 2011-04-28 | 2012-04-17 | acelerador de formação de raiz adventícia para uma planta, meio para enraizamento a partir de um broto de uma planta, e, método para produzir uma muda clone |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011101264A JP5337838B2 (ja) | 2011-04-28 | 2011-04-28 | 不定根形成促進剤、該不定根形成促進剤を含有する発根用培地、および、該不定根形成促進剤を用いるクローン苗の生産方法 |
| JP2011-101264 | 2011-04-28 |
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| WO2012147561A1 true WO2012147561A1 (ja) | 2012-11-01 |
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| JP (1) | JP5337838B2 (ja) |
| AU (1) | AU2012248582B2 (ja) |
| BR (1) | BR112013020502A8 (ja) |
| CL (1) | CL2013001185A1 (ja) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104054480A (zh) * | 2014-06-06 | 2014-09-24 | 卞佳林 | 一种丹参的扦插育苗方法 |
| CN106717975B (zh) * | 2017-01-05 | 2018-06-29 | 任泽楷 | 一种绣球茜的扦插繁殖方法 |
| CN116868894A (zh) * | 2023-08-08 | 2023-10-13 | 中国林业科学研究院热带林业研究所 | 一种檀香的组织快繁方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101480213B1 (ko) * | 2013-01-14 | 2015-01-07 | 충북대학교 산학협력단 | 도라지 부정근을 유도하는 배지 조성물 |
| KR101467661B1 (ko) * | 2013-01-29 | 2014-12-05 | 충북대학교 산학협력단 | 생리활성물질의 함량이 증가된 섬오갈피 부정근의 배양방법 |
| CN105210608B (zh) * | 2015-09-07 | 2017-11-10 | 浙江省林业科学研究院 | 一种青钱柳苗木繁殖方法 |
| JP6766201B2 (ja) * | 2019-03-08 | 2020-10-07 | 住友林業株式会社 | 山林樹木挿し木苗の育苗方法 |
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| JP2001186814A (ja) * | 1999-12-28 | 2001-07-10 | Nippon Paper Industries Co Ltd | 新規な挿し木苗の作出法 |
| JP2003113148A (ja) * | 2001-10-05 | 2003-04-18 | Inst Of Physical & Chemical Res | アブシジン酸生合成阻害剤 |
| WO2011136285A1 (ja) * | 2010-04-27 | 2011-11-03 | 日本製紙株式会社 | 細胞分化促進剤およびその用途 |
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| JP4057271B2 (ja) * | 2001-10-04 | 2008-03-05 | 独立行政法人科学技術振興機構 | イノラートアニオンの新規合成法 |
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- 2012-04-17 BR BR112013020502A patent/BR112013020502A8/pt not_active Application Discontinuation
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| JP2001186814A (ja) * | 1999-12-28 | 2001-07-10 | Nippon Paper Industries Co Ltd | 新規な挿し木苗の作出法 |
| JP2003113148A (ja) * | 2001-10-05 | 2003-04-18 | Inst Of Physical & Chemical Res | アブシジン酸生合成阻害剤 |
| WO2011136285A1 (ja) * | 2010-04-27 | 2011-11-03 | 日本製紙株式会社 | 細胞分化促進剤およびその用途 |
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| YOSHITAKA KAWAI: "Effect of Exogenous BAP, GA3, and ABA on Endogenous Auxin and Rooting of Grapevine Hardwood Cuttings", JOURNAL OF THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE, vol. 66, no. 1, June 1997 (1997-06-01), pages 93 - 98 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104054480A (zh) * | 2014-06-06 | 2014-09-24 | 卞佳林 | 一种丹参的扦插育苗方法 |
| CN106717975B (zh) * | 2017-01-05 | 2018-06-29 | 任泽楷 | 一种绣球茜的扦插繁殖方法 |
| CN116868894A (zh) * | 2023-08-08 | 2023-10-13 | 中国林业科学研究院热带林业研究所 | 一种檀香的组织快繁方法 |
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| BR112013020502A8 (pt) | 2018-01-16 |
| AU2012248582B2 (en) | 2014-09-04 |
| JP5337838B2 (ja) | 2013-11-06 |
| AU2012248582A1 (en) | 2013-05-02 |
| JP2012232907A (ja) | 2012-11-29 |
| BR112013020502A2 (pt) | 2016-07-12 |
| CL2013001185A1 (es) | 2014-03-28 |
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