WO2025192586A1 - Activateur de tolérance à un stress environnemental d'une plante - Google Patents

Activateur de tolérance à un stress environnemental d'une plante

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Publication number
WO2025192586A1
WO2025192586A1 PCT/JP2025/009077 JP2025009077W WO2025192586A1 WO 2025192586 A1 WO2025192586 A1 WO 2025192586A1 JP 2025009077 W JP2025009077 W JP 2025009077W WO 2025192586 A1 WO2025192586 A1 WO 2025192586A1
Authority
WO
WIPO (PCT)
Prior art keywords
stress
seeds
leucine
phenylalanine
environmental stress
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.)
Pending
Application number
PCT/JP2025/009077
Other languages
English (en)
Japanese (ja)
Inventor
博瑛 山根
隆之 浅田
拓 毛利
増俊 野尻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaneka Corp
Original Assignee
Kaneka Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kaneka Corp filed Critical Kaneka Corp
Publication of WO2025192586A1 publication Critical patent/WO2025192586A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • A01C1/06—Coating or dressing seed
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • 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
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • 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
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/60—1,4-Diazines; Hydrogenated 1,4-diazines

Definitions

  • the present invention relates to a plant environmental stress tolerance imparting agent, a composition containing the same, and seeds containing the composition.
  • Plant stress can be broadly divided into biological stress such as plant disease, and environmental stress caused by factors such as salt concentration and temperature.
  • Non-patent document 1 reports that a cyclic dipeptide composed of leucine and phenylalanine, a 2,5-diketopiperazine derivative derived from the Bacillus subtilis KS1 strain, induces resistance to plant diseases caused by oomycete infection and confers resistance to downy mildew fungi. However, Non-patent document 1 does not disclose anything about conferring resistance to environmental stress.
  • Patent Document 1 reports that the cyclic cyclodipeptides cyclo(leucine-phenylalanine) and cyclo(proline-valine) can be used as control agents against plant diseases caused by oomycete infections and downy mildew. However, Patent Document 1 also reports on biological plant diseases and does not disclose any information on conferring resistance to environmental stress.
  • Patent Document 2 discloses that 2,5-diketopiperazine derivatives, in which two amino acid molecules are cyclically bonded, that have a specific structure provide induced resistance to plant diseases and promote plant growth. Patent Document 2 also discloses the application of 2,5-diketopiperazine derivatives to confer disease resistance to plants. However, Patent Document 2 does not disclose anything about conferring resistance to environmental stress.
  • Patent Document 3 discloses that branched amino acids such as valine, leucine, and ⁇ -ketoisovaleric acid confer high-temperature stress tolerance to plants by altering the plant's amino acid metabolism. However, Patent Document 3 only discloses the conferring of high-temperature stress tolerance, and does not disclose the conferring of other stress tolerances, such as salt stress tolerance.
  • the present invention is based on the above new findings and is as follows.
  • a plant environmental stress tolerance imparting agent comprising a cyclodipeptide containing phenylalanine and/or leucine, and/or a salt thereof.
  • the agent according to (1) or (2), wherein the environmental stress is one or more selected from the group consisting of salt stress, low temperature stress, and drought stress.
  • a composition for imparting resistance to environmental stress to a plant comprising the agent according to any one of (1) to (3).
  • a cyclodipeptide containing phenylalanine and any amino acid in which a carboxyl group contained in the phenylalanine and an amino group contained in the any amino acid are bonded to each other to form a ring, and an amino group contained in the phenylalanine and a carboxyl group contained in the any amino acid are bonded to each other to form a ring.
  • a cyclodipeptide containing leucine and an arbitrary amino acid in which a carboxyl group contained in the leucine and an amino group contained in the arbitrary amino acid are bonded to each other to form a ring, and an amino group contained in the leucine and a carboxyl group contained in the arbitrary amino acid are bonded to each other to form a ring.
  • optical isomerism of the amino acids constituting the plant environmental stress tolerance imparting agent of the present invention is not particularly limited, and may be either the L-form or the D-form.
  • the cyclodipeptide is a cyclodipeptide consisting of phenylalanine and leucine.
  • the cyclodipeptide is cyclo(leucine-phenylalanine) represented by the following formula:
  • environmental stress refers to an environmental factor that imposes stress on a plant and thereby inhibits the growth of the plant.
  • environmental stress in this specification refers to abiotic stress related to environmental or physical factors, and does not include biological stress such as infection by pathogenic bacteria.
  • environment stress include, but are not limited to, salt stress, low temperature stress, high temperature stress, drought stress, excessive humidity stress, and light stress.
  • salt stress refers to, but is not limited to, stress that occurs under environmental conditions in which the salt concentration in the soil in which a plant is growing deviates from the optimum concentration for growth and shifts to a higher concentration.
  • low temperature stress refers to, but is not limited to, stress that occurs when the temperature of the environment in which a plant is growing drops below the optimum growth temperature or falls below the low temperature limit.
  • high temperature stress refers to, but is not limited to, stress that occurs under environmental conditions in which the temperature of the environment in which a plant is growing exceeds the upper limit of the optimum growth temperature.
  • Excessive moisture stress refers to, but is not limited to, stress that occurs when the moisture content in the soil in which a plant is growing exceeds the optimum amount for growth.
  • Plant Environmental Stress inducing agent refers to an agent that can impart tolerance to the above-mentioned environmental stress to a plant.
  • the term refers to an agent that can reduce the effects of the above-mentioned environmental stress on a plant (e.g., suppression of plant growth) even in the presence of the above-mentioned environmental stress.
  • plant is not particularly limited, but is preferably a crop plant, and more preferably an edible plant.
  • crop plants include corn (maize), wheat, barley, rye, oat, rice, soybean, canola (rapeseed), cotton, sunflower, sugar beet, potato, tobacco, broccoli, lettuce, cabbage, spinach, komatsuna (Japanese mustard spinach), cauliflower, coconut, tomato, cucumber, eggplant, melon, pumpkin, okra, bell pepper, watermelon, carrot, radish, onion, leek, fruit trees, ornamental plants, turf, and pasture grass, but are not limited thereto.
  • the plant to which environmental stress tolerance is imparted by the agent of the present invention is a monocotyledonous cereal plant.
  • a second aspect of the present invention is a composition for imparting environmental stress tolerance to plants, which contains the plant environmental stress tolerance imparting agent described above in 1. By applying the composition of the present invention to a plant, it is possible to impart environmental stress tolerance to the plant.
  • the composition of the present invention is a composition containing "a cyclodipeptide containing phenylalanine and/or leucine, and/or a salt thereof" as an active ingredient.
  • the "cyclodipeptide containing phenylalanine and/or leucine, and/or a salt thereof" of the present invention is as described in 1-3 above.
  • composition of the present invention may contain other ingredients such as excipients in addition to the active ingredient "cyclodipeptide containing phenylalanine and/or leucine and/or a salt thereof.”
  • composition of the present invention may also contain one or more of the above active ingredients.
  • the cyclodipeptide containing phenylalanine and/or leucine is cyclo(leucine-phenylalanine) (cLF).
  • composition of the present invention may be in the form of a liquid composition or a solid composition.
  • the composition of the present invention may be a composition suitable for application to the seeds, or above-ground parts such as leaves, stems, fruits, flowers, and roots, or the rhizosphere of a target plant.
  • the composition of the present invention may contain, in addition to the active ingredient, any ingredient necessary for formulation, as long as it does not impair the effect of imparting environmental stress tolerance to plants.
  • ingredients include solvents, carriers, pH adjusters, thickeners, spreaders, surfactants, antioxidants, bulking agents, dispersants, humectants, colorants, antifoaming agents, UV protectants, antifreeze agents, preservatives, biological control agents or biocides, emulsifiers, sequestrants, plasticizers, phospholipids, flow agents, coalescing agents, waxes, preservatives, and/or elements necessary for plant growth (e.g., one or more selected from the group consisting of Mo, Co, B, Fe, Cu, Zn, Mn, S, Mg, Ca, N, P, and K).
  • the ingredients are not limited to those commonly used in compositions intended for agricultural use.
  • composition containing the active ingredient may be in the form of a liquid or solid composition, but a liquid composition is preferred from the standpoints of ease of measurement, handling, and mixing with other ingredients.
  • the dosage form may be any of solutions, granules, emulsions, wettable powders, oil solutions, aerosols, etc., and is not particularly limited.
  • composition of the present invention By applying the composition of the present invention to plants, plant growth can be promoted under environmental stress conditions compared to when the phenylalanine-containing cyclodipeptide and/or a salt thereof is not applied.
  • environmental stress tolerance can be imparted to plants.
  • imparting environmental stress tolerance to plants means that the effects of environmental stress on plants (e.g., plant growth inhibition) are reduced even in the presence of environmental stress.
  • the "environmental stress" of the present invention is as described in 1-4 above, and is preferably salt stress, low temperature stress, or drought stress.
  • the plants to which the composition of the present invention is applied are those for which it is desired to reduce the environmental stress conditions described above, and preferably the plants described in 1-6 above.
  • composition of the present invention confers resistance to environmental stress to plants, preferably to plants in the early growth stage. However, the composition of the present invention may also confers resistance to environmental stress throughout the entire growth period of the plant, not just the early growth stage.
  • a plant in the early growth stage refers to a plant at the stage from sowing the seeds of the plant to which stress tolerance is intended to be imparted, to the stage at which the seeds have germinated and produced several leaves, for example, 3 to 7 leaves, but is not limited to this range of stages.
  • the effect of the composition of the present invention on imparting environmental stress tolerance was examined using corn. That is, seeds were coated with the composition of the present invention, then sown in soil and cultivated under various environmental stresses, including salt stress. 21 days after sowing, the growth status of the corn seedlings derived from the seeds was evaluated to determine whether the composition of the present invention had imparted environmental stress tolerance.
  • composition of the present invention to the seeds of plants to which the aim is to impart environmental stress tolerance.
  • the method for producing the composition of the present invention is not particularly limited, and the composition can be produced by mixing the components by an appropriate means.
  • a liquid composition can be produced by stirring, dispersing, or the like in a liquid medium such as water or alcohol, as needed.
  • a solid composition can be produced by pulverizing, granulating, drying, or the like, as needed.
  • a third aspect of the present invention is a seed containing on its surface and/or inside the composition described in 2 above.
  • the seed of the present invention contains on its surface and/or inside a composition containing "a cyclodipeptide containing phenylalanine and/or leucine and/or a salt thereof," thereby enabling a plant derived from or developed from the seed of the present invention to have environmental stress resistance.
  • the "cyclodipeptide containing phenylalanine and/or leucine and/or a salt thereof" of the present invention is as described in 1-3 above.
  • the cyclodipeptide containing phenylalanine and/or leucine is cyclo(leucine-phenylalanine) (cLF).
  • the "environmental stress" of the present invention is as described in 1-4 above, and is preferably salt stress, low temperature stress, or drought stress.
  • the seeds of the present invention are seeds of plants for which reduction of the above-mentioned environmental stress is desired, and are preferably seeds of plants described in 1-6 above.
  • Plants derived from the seeds of the present invention have enhanced growth under environmental stress conditions compared to plants derived from seeds that do not contain the active ingredient phenylalanine-containing cyclodipeptide and/or its salt. This effect is demonstrated by the experimental data in the examples described below.
  • the surface of a plant seed to which tolerance to environmental stress is to be imparted can be coated with the composition described in 2 above.
  • the surface of the seed can be coated by subjecting the seed to a coating treatment. While it is sufficient that at least a portion of the surface of the seed is coated, preferably the entire surface of the seed is coated.
  • composition containing the active ingredient used to coat plant seeds with the composition of the present invention is not particularly limited. However, to ensure reliable coating, it is preferable that the composition used to coat seeds has a certain level of viscosity, and it is a preferred embodiment of the present invention that the composition contains a thickener.
  • Such a composition containing an active ingredient can be used as a coating solution and coated using a coating device on the seeds of a plant to which resistance to environmental stress is intended to be imparted.
  • a coating device on the seeds of a plant to which resistance to environmental stress is intended to be imparted.
  • the seeds and the composition can be mechanically blended to ensure uniform coating.
  • An example of a coating device that can be used for this purpose is the CONCEPT ML2000 manufactured by SATEC, which was used in the examples below.
  • seeds can be coated with the composition containing the active ingredient by spraying it on the seeds after sowing.
  • the seeds may be soaked in the solution of the composition. After soaking the seeds in the composition, they may be washed to remove excess active ingredient.
  • the coated seeds may be dried once, but drying the seeds is not necessarily required.
  • the cyclodipeptide containing phenylalanine and/or leucine and/or salts thereof when the composition is applied to seeds is not particularly limited.
  • the cyclodipeptide containing phenylalanine and/or leucine and/or salts thereof may be contained in an amount of 0.05 ⁇ 10 to 50 ⁇ 10 parts by mass, 0.1 ⁇ 10 to 100 ⁇ 10 parts by mass, 0.05 ⁇ 10 to 50 ⁇ 10 parts by mass, 0.1 ⁇ 10 to 100 ⁇ 10 parts by mass, 0.05 ⁇ 10 to 50 ⁇ 10 parts by mass, or 0.1 ⁇ 10 to 100 ⁇ 10 parts by mass, per 100 parts by mass of seeds.
  • a fifth aspect of the present invention is a method for reducing environmental stress in plants, which comprises the step of applying the composition described in 2 above to the plant.
  • the method for reducing environmental stress of the present invention comprises the step of applying to plants a composition containing "a cyclodipeptide containing phenylalanine and/or leucine and/or a salt thereof," thereby reducing environmental stress in plants.
  • cyclodipeptide containing phenylalanine and/or leucine, and/or its salt is as described in 1-3 above.
  • the cyclodipeptide containing the active ingredient phenylalanine and/or leucine is cyclo(leucine-phenylalanine) (cLF).
  • the environmental stress reduction method of the present invention only needs to include the step of applying the composition described above in 2, and other steps are optional.
  • the "environmental stress" of the present invention is as described in 1-4 above, and is preferably salt stress, low temperature stress, or drought stress.
  • the plant to which the composition described in 2 above is applied is a plant for which reduction of the above-mentioned environmental stress is desired, preferably a plant described in 1-6 above.
  • Examples of applying the composition described in 2 above to the target plant include, but are not limited to, application to the seeds, leaves, stems, fruits, flowers, roots, or other above-ground parts or rhizosphere of the target plant.
  • the preferred embodiment of the method of the present invention is application to seeds.
  • application to seeds may be combined with application to the rhizosphere or above-ground parts such as leaves and stems.
  • the seeds may be coated with the composition described in 2 above, and then the seeds can be sown in soil.
  • the method for coating seeds with the composition described in 2 above is as described in 3-3 above.
  • the seeds may be immersed in a solution of the composition described in 2 above, and then the seeds can be sown in soil.
  • the cyclodipeptide containing phenylalanine and/or leucine and/or salts thereof when the composition is applied to seeds is not particularly limited.
  • the cyclodipeptide containing phenylalanine and/or leucine and/or salts thereof may be contained in an amount of 0.05 ⁇ 10 to 50 ⁇ 10 parts by mass, 0.1 ⁇ 10 to 100 ⁇ 10 parts by mass, 0.05 ⁇ 10 to 50 ⁇ 10 parts by mass, 0.1 ⁇ 10 to 100 ⁇ 10 parts by mass, 0.05 ⁇ 10 to 50 ⁇ 10 parts by mass, or 0.1 ⁇ 10 to 100 ⁇ 10 parts by mass, per 100 parts by mass of seeds.
  • the active ingredient is a cyclodipeptide containing phenylalanine and/or leucine and/or a salt thereof in an amount of 0.05 ⁇ 10 -7 to 50 ⁇ 10 -4 parts by mass per 100 parts by mass of seeds.
  • the amount of active ingredient coated on the seeds can be adjusted appropriately depending on the type of plant and the amount of the conventional spray solution used for pest control.
  • cyclodipeptides are abbreviated as follows: Cyclo(leucine-phenylalanyl): cLF Cyclo(phenylalanine-proline): cFP Cyclo(proline-valine): cPV
  • Example 1 Cultivation of corn in the absence of environmental stress (cLF concentration: 50 g) ⁇ Method>
  • a coating solution 800 ⁇ L) containing cyclo(leucine-phenylalanine) (cLF) or cyclo(proline-valine) (cPV) as a cyclodipeptide and a thickener in water was prepared for 100 g of corn seeds (variety: Snowdent Otoha).
  • the corn seeds were coated with the coating solution using a coating device (CONCEPT ML2000 manufactured by SATEC Corporation). The coating treatment was carried out so that the amount of both cyclodipeptides per ton of seeds was 50 g.
  • Example 2 Cultivation of corn under salt stress (cLF concentration: 50 g) ⁇ Method> A coating solution (800 ⁇ L) containing cyclo(leucine-phenylalanine) (cLF) or cyclo(proline-valine) (cPV) as a cyclodipeptide and a thickener in water was prepared for 100 g of corn seeds (variety: Snowdent Otoha). The corn seeds were coated with the coating solution using a coating device (CONCEPT ML2000 manufactured by SATEC Corporation). The coating treatment was carried out so that the amount of both cyclodipeptides per ton of seeds was 50 g.
  • a coating device CONCEPT ML2000 manufactured by SATEC Corporation
  • Example 3 Cultivation of corn in the absence of environmental stress (cLF concentration: 2 mg) ⁇ Method> A coating solution (800 ⁇ L) containing cyclo(leucine-phenylalanine) (cLF) or cyclo(phenylalanine-proline) (cFP) as a cyclodipeptide and a thickener in water was prepared for 100 g of corn seeds (variety: Snowdent Otoha). The corn seeds were coated with the coating solution using a coating device (CONCEPT ML2000, manufactured by SATEC).
  • the coating treatment was carried out so that the amount of cyclo(leucine-phenylalanine) (cLF) per ton of seeds was 2 mg and the amount of cyclo(phenylalanine-proline) (cFP) per ton of seeds was 50 g.
  • Example 4 Cultivation of corn under salt stress (cLF concentration: 2 mg) ⁇ Method> A coating solution (800 ⁇ L) containing cyclo(leucine-phenylalanine) (cLF) or cyclo(phenylalanine-proline) (cFP) as a cyclodipeptide and a thickener in water was prepared for 100 g of corn seeds (variety: Snowdent Otoha). The corn seeds were coated with the coating solution using a coating device (CONCEPT ML2000, manufactured by SATEC).
  • the coating treatment was carried out so that the amount of cyclo(leucine-phenylalanine) (cLF) per ton of seeds was 2 mg and the amount of cyclo(phenylalanine-proline) (cFP) per ton of seeds was 50 g.
  • Example 5 Effect of the concentration of cyclo(leucine-phenylalanine) coated on seeds ⁇ Method>
  • a coating treatment was carried out on 100 g of corn seeds (variety: Snowdent Otoha) by preparing 800 ⁇ L of a coating solution containing cyclo(leucine-phenylalanine) (cLF) and a thickener in water, and coating the corn seeds with the coating solution using a coating device (CONCEPT ML2000, manufactured by SATEC).
  • the coating treatment was carried out so that the amount of cyclo(leucine-phenylalanine) (cLF) per ton of seeds was 0.05 mg to 10 g.
  • Example 7 Effect of cyclo(leucine-phenylalanine) on drought stress ⁇ Method>
  • a coating treatment was carried out on 100 g of corn seeds (variety: Snowdent Otoha) by preparing 800 ⁇ L of a coating solution containing cyclo(leucine-phenylalanine) (cLF) and a thickener in water, and coating the corn seeds with the coating solution using a coating device (CONCEPT ML2000, manufactured by SATEC).
  • the coating treatment was carried out so that the amount of cyclo(leucine-phenylalanine) (cLF) per ton of seeds was 200 mg.
  • the agent for imparting environmental stress tolerance to plants of the present invention which comprises a cyclodipeptide containing phenylalanine and/or leucine and/or a salt thereof, enables plants to grow even under various environmental stresses, including salt stress, and therefore has agricultural utility, such as for increasing food production. All publications, patents, and patent applications cited herein are hereby incorporated by reference in their entirety.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Wood Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Dentistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Agronomy & Crop Science (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Botany (AREA)
  • Soil Sciences (AREA)
  • Toxicology (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

La présente invention aborde le problème de la fourniture d'un nouveau moyen destiné à conférer une tolérance à un stress environnemental tel qu'un stress salin, en particulier la fourniture d'un moyen destiné à conférer une tolérance à un stress environnemental à des plantes à l'aide d'un cyclodipeptide cyclique qui est un dérivé de 2,5-dicétopipérazine.　La présente invention concerne : un activateur de tolérance à un stress environnemental d'une plante composé d'un cyclodipeptide qui contient de la phénylalanine et/ou de la leucine, et/ou un sel dudit cyclodipeptide ; une composition destinée à conférer une tolérance à un stress environnemental à des plantes, la composition contenant l'activateur susmentionné ; et une graine contenant la composition susmentionnée sur la surface et/ou à l'intérieur de celle-ci.
PCT/JP2025/009077 2024-03-15 2025-03-11 Activateur de tolérance à un stress environnemental d'une plante Pending WO2025192586A1 (fr)

Applications Claiming Priority (2)

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JP2024041512 2024-03-15
JP2024-041512 2024-03-15

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101104606A (zh) * 2006-09-25 2008-01-16 沈阳药科大学 一种新的抗旱剂和植物生长调节剂
JP2012197249A (ja) * 2011-03-22 2012-10-18 Ajinomoto Co Inc 農園芸用高温ストレス耐性付与剤およびそれを用いた高温ストレス耐性付与法
JP2013531688A (ja) * 2010-07-15 2013-08-08 大韓民国農村振興庁 ２，５−ジケトピペラジン誘導体を活性成分として含む農業用薬剤
WO2021125272A1 (fr) * 2019-12-19 2021-06-24 株式会社カネカ Agent de lutte contre les maladies des plantes et procédé de culture de plantes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101104606A (zh) * 2006-09-25 2008-01-16 沈阳药科大学 一种新的抗旱剂和植物生长调节剂
JP2013531688A (ja) * 2010-07-15 2013-08-08 大韓民国農村振興庁 ２，５−ジケトピペラジン誘導体を活性成分として含む農業用薬剤
JP2012197249A (ja) * 2011-03-22 2012-10-18 Ajinomoto Co Inc 農園芸用高温ストレス耐性付与剤およびそれを用いた高温ストレス耐性付与法
WO2021125272A1 (fr) * 2019-12-19 2021-06-24 株式会社カネカ Agent de lutte contre les maladies des plantes et procédé de culture de plantes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAVI DAIANI CRISTINA; SHAABAN KHALED A.; GOS FRANCIELLY M.; THORSON JON S.; GLIENKE CHIRLEI; ROHR JüRGEN: "Secondary metabolites produced byMicrobacteriumsp. LGMB471 with antifungal activity against the phytopathogenPhyllosticta citricarpa", FOLIA MICROBIOLOGICA, vol. 64, no. 3, 18 December 2018 (2018-12-18), NL , pages 453 - 460, XP036789228, ISSN: 0015-5632, DOI: 10.1007/s12223-018-00668-x *

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