WO2021241369A1 - Nouvelle composition, agent de lutte contre les maladies des plantes la contenant et procédé de lutte contre les maladies des plantes - Google Patents

Nouvelle composition, agent de lutte contre les maladies des plantes la contenant et procédé de lutte contre les maladies des plantes Download PDF

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Publication number
WO2021241369A1
WO2021241369A1 PCT/JP2021/019059 JP2021019059W WO2021241369A1 WO 2021241369 A1 WO2021241369 A1 WO 2021241369A1 JP 2021019059 W JP2021019059 W JP 2021019059W WO 2021241369 A1 WO2021241369 A1 WO 2021241369A1
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Prior art keywords
disease control
plant disease
plant
iron
pqq
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PCT/JP2021/019059
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English (en)
Japanese (ja)
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晴彦 井上
基史 鈴木
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国立研究開発法人農業・食品産業技術総合研究機構
愛知製鋼株式会社
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Publication of WO2021241369A1 publication Critical patent/WO2021241369A1/fr

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    • 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
    • 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
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • 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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P21/00—Plant growth regulators

Definitions

  • the present invention relates to a composition for giving a plant disease control agent capable of improving the disease resistance of crops or plants, and a plant disease control method.
  • plants Diseases of agricultural crops or plants (hereinafter collectively referred to as "plants") cause a decrease in yield. Therefore, conventionally, pesticides such as fungicides and disease-resistant varieties have been combined to protect crops. It has been done. However, the problem is that the use of fungicides makes phytopathogens resistant to fungicides. In order to solve this problem, a method of combining fungicides with different action mechanisms is adopted, but there is concern about the impact on the environment, so it is necessary to develop a new environmentally friendly disease control method. Has been done. It has a wide range of control effects against multiple diseases, and its effects are not diminished by drug-resistant bacteria. By using it, the number and amount of conventional fungicides used can be reduced, and it is sustainable and has a low environmental load. Research on plant disease resistance inducers or plant activators for realizing plant cultivation has been widely conducted.
  • Patent Document 1 describes a plant activator containing ⁇ -amyrin or lupeol as an active ingredient, and a plant activator consisting of a liquid containing ⁇ -amyrin or lupeol, wherein the liquid is added to a plant in the form of an aqueous solution.
  • a plant activator characterized by giving to the roots is disclosed.
  • Patent Document 2 describes resistance or resistance to environmental stress that plants receive when exposed to chemical substances such as dry, high temperature, low temperature, frozen, salt, water, pests, light, and herbicides.
  • Pyrroloquinoline quinone official name: 4,5-dihydro-4,5-dioxo-1H-pyrrolo [2,3, f] quinoline-2,7,9-
  • Non-Patent Documents 1 and 2 describe the use of iron-citric acid complexes.
  • An object of the present invention is to provide a composition for giving a plant disease control agent capable of improving the disease resistance of a plant, and a plant disease control method.
  • a composition comprising pyrroloquinoline quinone (hereinafter, also referred to as "PQQ") and an iron compound. 2.
  • the composition according to Item 1 above which further contains water. 3.
  • the composition according to Item 2, wherein the pyrroloquinoline quinone (PQQ) and iron derived from the iron compound form a complex.
  • Item 3. The composition according to Item 3, wherein the concentration of pyrroloquinoline quinone is 0.1 to 1000 ⁇ M.
  • a plant disease control agent comprising the composition according to any one of the above items 1 to 5. 7.
  • a plant disease control method comprising a chemical application step of applying the plant disease control agent according to the above item 6 to a plant.
  • the drug application step is a step of applying the plant disease control agent to the leaf surface of the plant.
  • the chemical application step is a step of applying the plant disease control agent to the soil in which the plant is cultivated.
  • a method for controlling plant diseases which comprises giving an iron component to the soil in which a plant is cultivated, and then giving the soil a liquid containing pyrroloquinoline quinone (PQQ) and water.
  • a plant disease control agent capable of improving the disease resistance of a plant can be provided. That is, the composition of the present invention may be used as it is as a plant disease control agent, or for plant disease control, PQQ or an iron compound or other components may be further added to obtain a plant disease control agent. It can also be used as a raw material.
  • the composition of the present invention contains PQQ, an iron compound, and water, a complex of PQQ and iron can be easily formed, so that plant disease control that improves plant disease resistance is improved. Suitable as an agent.
  • the plant disease control method of the present invention it is possible to impart resistance to plants having diseases caused by filamentous fungi, bacteria, viruses and the like, and to recover from the diseases at an early stage.
  • FIG. 3 is a graph showing the results of the number of blast spots on rice after foliar spraying of water, Fe-PQQ (30 ⁇ M) and iron citrate (30 ⁇ M) in Experimental Example 2.
  • Experimental Example 2 it is a graph which shows the result of the blast disease spot number of rice after foliar spraying of water, Fe-PQQ (10 ⁇ M) and PQQ (10 ⁇ M). It is a graph which shows the material spraying effect to the cucumber MNSV disease in Experimental Example 3.
  • the composition of the present invention contains PQQ represented by the following formula (1) and an iron compound.
  • PQQ represented by the following formula (1)
  • an iron compound In the present invention, it is a useful composition as a composition for agriculture and horticulture that allows plants to grow well.
  • the iron compound is not particularly limited, and may be either an inorganic compound or an organic compound, or a combination thereof. Further, the iron compound may be either a divalent compound or a trivalent compound. Examples of the inorganic compound include chloride, bromide, iodide, nitrate, sulfate, phosphate, chlorate, and iodate. Examples of the organic compound include acetate, citrate, succinate, fumarate, tartrate, lactate, pyrophosphate and the like. As the iron compound in the present invention, an inorganic compound is preferable, and chlorides and sulfates are particularly preferable because complex formation of PQQ and iron is easy.
  • the composition of the present invention can be a plant disease control agent for improving plant disease resistance or a raw material thereof, and the content ratios of PQQ and iron compounds are not particularly limited.
  • the plant disease control agent of the present invention applied to a plant is an iron complex-containing composition in which PQQ and an iron compound are dissolved in water in a preferable content, and the content ratio of PQQ and an iron compound in this case is as follows. be. That is, the amount of iron contained in the iron compound is preferably 0.01 to 10 mol, more preferably 0.1 to 2 mol, with respect to 1 mol of PQQ.
  • PQQ or the iron compound when PQQ and the iron compound do not have the above-mentioned preferable content ratios, PQQ or the iron compound may be added to obtain a plant disease control agent before the plant disease control is performed.
  • the iron compound When the iron compound is added afterwards, the iron compound may be the same as or different from the iron compound contained earlier.
  • the plant disease control agent of the present invention comprises the composition of the present invention containing PQQ, an iron compound, and water, and is an aqueous liquid having a preferable content ratio of PQQ and an iron compound in the above range.
  • the content ratio of water is not particularly limited, but the concentration of PQQ is preferably 0.1 to 1000 ⁇ M, more preferably 1 to 100 ⁇ M.
  • the pH of the composition of the present invention containing water is preferably 1 to 11, more preferably 2 to 10, regardless of the presence or absence of other components described below.
  • the pH of the plant disease control agent applied to the plant is preferably 2 to 10, more preferably 3 to 9.
  • the plant disease control agent applied to plants contains a complex (iron complex) of PQQ and iron, and can contain other components. Therefore, the composition of the present invention, which can be a raw material for the plant disease control agent of the present invention, can also contain other components in addition to PQQ and the iron compound.
  • ingredients include, for example, as active ingredients such as fertilizers, pesticides, and biostimulants, conventionally known chelate compounds (derived from natural products or synthetic products) and surfactants (emulsifiers, defoamers). , Dispersant, etc.), spreading agent, etc. If the other components are insoluble in water, the composition containing water is usually an aqueous dispersion.
  • the upper limit of the ratio of the total amount of the other components is preferably 99 parts by mass, more preferably 95 parts by mass, based on 100 parts by mass of the total of PQQ and the iron compound. It is a department.
  • the upper limit of the ratio of the total amount of the other components is preferably 95 parts by mass with respect to 100 parts by mass of the total of PQQ and the iron compound. More preferably, it is 90 parts by mass.
  • the method for producing the composition of the present invention is appropriately selected depending on the composition, and is not particularly limited.
  • a composition containing no water it can be produced by mixing PQQ and an iron compound.
  • the composition containing water can be produced by using PQQ or a salt thereof, an iron compound, and water, and it is preferable to use the composition so that at least PQQ and the iron compound are dissolved.
  • it can be produced by mixing an aqueous solution of PQQ or a salt thereof with an aqueous solution or dispersion of an iron compound.
  • the plant disease control agent of the present invention is a composition suitable for controlling diseases by inducing resistance to diseases caused by pathogens such as filamentous fungi, bacteria and viruses.
  • pathogens such as filamentous fungi, bacteria and viruses.
  • filamentous fungi include rice blast fungus, Udonko fungus, Botrytis cinerea, root-knot fungus, sticky fungus, wilt fungus and the like.
  • the bacterium include bacterial wilt, soft rot, potato scab, soybean spot bacterium, peach perforated bacterium, citrus greening bacterium, citrus bacillus and the like.
  • the virus include melon yellow necrosis virus, tobacco mosaic virus, strawberry virus, potato spindle tuber viroid, tomato chlorotic dwarf viroid, and the like.
  • the plant disease control method of the present invention comprises a chemical application step of applying a plant disease control agent to a plant.
  • "Giving a plant disease control agent to a plant” in this chemical application step is to directly or indirectly bring the plant disease control agent into contact with the plant to be applied, and specifically, the plant disease control agent is brought into contact with the plant. It means giving a control agent to the main body of the plant and giving a plant disease control agent to the soil in which the plant is cultivated.
  • the plant disease control agent when the plant disease control agent is given to the plant body, the plant disease control agent can be given to the leaf surface, stem or root of the plant, and it is particularly preferable to give the plant disease control agent to the leaf surface.
  • application or spraying is preferable.
  • the application of the plant disease control agent may be a part of the plant or may be the whole. Even when a plant disease control agent is applied to only a part of the plant, the metabolites produced at the site where the plant disease control agent is attached spread to the part requiring disease control, so that the whole plant is resistant to pathogens. Can be given.
  • a plant disease control agent when a plant disease control agent is applied to the soil in which a plant is cultivated, a method of spraying the plant disease control agent on the soil, a method of mixing the plant disease control agent with the soil, and a method of irrigating the plant disease control agent with soil. Etc. can be applied.
  • the amount and frequency of use of the plant disease control agent used in the above-mentioned chemical application step are appropriately selected according to the type of plant, growth condition, weather condition, application location, and the like.
  • the plant disease control agent may be used at any time such as sowing, transplanting, planting, and growing in this field.
  • an iron component is given to the soil in which the plant is cultivated, and then a liquid containing PQQ and water (hereinafter referred to as "PQQ-containing liquid") is given to the soil.
  • PQQ-containing liquid a liquid containing PQQ and water
  • the iron component a material containing a compound (compound only, or a solution or dispersion thereof) that forms a complex of PQQ and iron by contact with a PQQ-containing liquid is used.
  • the content ratio of PQQ in the PQQ-containing liquid can be, for example, 0.001 to 50% by mass.
  • the pH of the PQQ-containing liquid is preferably 1 to 11. If it is known that the soil in which the plant is cultivated contains iron, a PQQ-containing liquid can be given.
  • Fe-PQQ supplement experiment of iron absorption-deficient yeast This experiment verifies whether Fe-PQQ passes through the "iron-nicotianamine iron" transporter of Arabidopsis thaliana, which is a representative plant.
  • a vector (pDR196-YSL1) expressing the YSL1 gene of Arabidopsis was introduced into yeast lacking fet3 and fet4 involved in iron transport.
  • the transformed clones were cultured in SD-Ura medium, washed with 10 mM EDTA solution, and washed 3 times with sterile water.
  • FIG. 1 The image of the culture medium after culturing is shown in FIG. From FIG. 1, it can be seen that the yeast expressing the YSL1 transporter of Arabidopsis preferentially absorbs iron. Then, since it passed through YSL1, it can be seen that Fe and PQQ form a complex (Fe-PQQ).
  • FIGS. 2 and 3 The results showing the number of lesions of blast disease are shown in FIGS. 2 and 3.
  • FIG. 2 is the result of (1)
  • FIG. 3 is the result of (2). From these figures, it can be seen that when Fe-PQQ is used, the number of lesions is smaller than when iron citrate and PQQ are used, and the effect on blast disease is high.
  • the inoculation group (water only), PQQ (20 ⁇ M aqueous solution, pH 5), Fe-PQQ (20 ⁇ M aqueous solution, pH 5) and iron citrate (20 ⁇ M aqueous solution, pH 5) were sprayed on the leaves and continued cultivation. bottom. After 3 weeks, the plant height of the cucumber was measured.
  • Figure 4 shows the measured values of plant height.
  • FIG. 4 also shows data (Mock) cultivated without contact with the virus-infected solution.
  • cucumbers infected with the melon yellowing gangrene virus were cultivated by feeding only water, they grew only about 10 cm.
  • PQQ (20 ⁇ M aqueous solution) Fe-PQQ (20 ⁇ M aqueous solution) and iron citrate (20 ⁇ M aqueous solution) are given, it grows 15 cm or more, and in particular, when Fe-PQQ (20 ⁇ M aqueous solution) is used, an infectious disease. It can be seen that the recovery power from is high.
  • composition of the present invention can be used as a plant disease control agent that easily forms a complex composed of pyrroloquinoline quinone and iron and improves the resistance of plants to diseases caused by filamentous fungi, bacteria, viruses and the like. Therefore, the plant disease control agent of the present invention and the plant disease control method using the same are useful for the growth of plants.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • General Health & Medical Sciences (AREA)
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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Botany (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Forests & Forestry (AREA)
  • Inorganic Chemistry (AREA)
  • Ecology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La présente invention aborde le problème consistant à fournir : une composition qui produit un agent de lutte contre les maladies des plantes capable d'améliorer la résistance aux maladies des plantes ; et un procédé de lutte contre les maladies des plantes. Cette composition contient un composé de fer et une pyrroloquinoléine quinone représentée par une formule ou un sel de celui-ci, et peut en outre contenir de l'eau. De préférence, la pyrroloquinoléine quinone et le fer dérivé du composé de fer forment un complexe si la composition contient de l'eau.
PCT/JP2021/019059 2020-05-29 2021-05-19 Nouvelle composition, agent de lutte contre les maladies des plantes la contenant et procédé de lutte contre les maladies des plantes WO2021241369A1 (fr)

Applications Claiming Priority (2)

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JP2020094998A JP2023102790A (ja) 2020-05-29 2020-05-29 新規な組成物及びそれを含む植物病害防除剤並びに植物病害防除方法
JP2020-094998 2020-05-29

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WO2021241369A1 true WO2021241369A1 (fr) 2021-12-02

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006151881A (ja) * 2004-11-30 2006-06-15 Institute Of Physical & Chemical Research 植物環境ストレス耐性用組成物
JP2011030485A (ja) * 2009-07-31 2011-02-17 Mitsubishi Gas Chemical Co Inc 金属イオンを使用するピロロキノリンキノン類の製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006151881A (ja) * 2004-11-30 2006-06-15 Institute Of Physical & Chemical Research 植物環境ストレス耐性用組成物
JP2011030485A (ja) * 2009-07-31 2011-02-17 Mitsubishi Gas Chemical Co Inc 金属イオンを使用するピロロキノリンキノン類の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MATSUMOTO, KENJI: "Development of alkali-resistant iron supply agents for plants inspired by microbial siderophores", FINAL RESEARCH REPORT OF GRANTS-IN- AID FOR SCIENTIFIC RESEARCH, PROJECT NUMBER: 15K07340, 8 June 2018 (2018-06-08), pages 1 - 5, XP055879580, Retrieved from the Internet <URL:kaken.nii.ac.jp/file/KAKENHI-PROJECT-15K07340/15K07340seika.pdf> *

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