WO2011037086A1 - 植物育成剤、植物病害抵抗性誘導剤及び病害防除方法 - Google Patents
植物育成剤、植物病害抵抗性誘導剤及び病害防除方法 Download PDFInfo
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- WO2011037086A1 WO2011037086A1 PCT/JP2010/066202 JP2010066202W WO2011037086A1 WO 2011037086 A1 WO2011037086 A1 WO 2011037086A1 JP 2010066202 W JP2010066202 W JP 2010066202W WO 2011037086 A1 WO2011037086 A1 WO 2011037086A1
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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
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
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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
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
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- the present invention uses natural products to improve the natural immunity function of plants and prevent disease infection, thereby improving the growth rate, plant growth agents effective for the production of crops and horticultural crops and the production of high-quality crops, plant diseases
- the present invention relates to a resistance inducer and a disease control method.
- a safe and secure crop is a consumer aspiration.
- growing methods that do not use reduced pesticides or pesticides have been recommended at the production sites for agricultural products such as organic vegetables (crop).
- chemicals in the same manner as before in the occurrence of diseases, and chemical fertilizers are still used for improving productivity.
- a safe, reliable, and effective growing method that can control the occurrence of diseases and promote the cultivation of crops, and that can be used at production sites, or a novel plant growth promoter that enables this.
- the present inventors have advanced earnest research and development, developed a safe, reliable, and effective breeding method or a novel plant growth promoter that enables this by a novel mechanism and completed the invention. .
- the origin of the present invention is to focus on innate immunity, which is an infection control mechanism inherent in the plant itself.
- the immune mechanism is regarded as a unique function of an organism that protects an individual from infection by a pathogen.
- innate immunity is an immune mechanism unique to vertebrates, and cells that play a central role are lymphocytes belonging to leukocytes.
- innate immunity exists in all animals, and cells that play a central role are phagocytic cells (for example, macrophages) that are characterized by phagocytosing foreign substances.
- Non-patent Document 1 Non-patent Document 1
- plants there are static resistance and dynamic resistance as actions similar to the innate immune mechanism of animals, but there is no evidence that phagocytic cells exist in plants.
- a group of public test and research institutes in Spain confirmed that gram-negative bacteria can increase the resistance of plant pathogens to the effect of spraying live pantoea on fungi during apple storage in 2001.
- Non-patent Document 2 The public testing research institution sells live pantoea as a biocontrol agent. Furthermore, in recent years, it has been clarified that glycolipids derived from plant pathogens, Xanthomonas or Ralstonia, induce plant infection control (Non-Patent Documents 3 and 4). That is, it has been clarified that treatment of a plant with a glycolipid derived from a pathogen induces infection control against the pathogen. This suggests that plants have innate immune mechanisms similar to animals.
- Non-Patent Document 5 the glycolipid of Pantoea agglomerans symbiotic to wheat enhances infection resistance of animals and humans orally and dermally and has an effect of improving various diseases.
- Non-Patent Document 5 This is because glycolipids activate innate immunity including phagocytic cells of animals and humans through the mucosa. Therefore, the present inventors thought that plants also have innate immunity mechanisms including phagocytic cells, and activation of the innate immunity mechanism may lead to improvement in plant growth rate and enhancement of infection resistance.
- plant infection control induction is characterized by the use of glycolipids derived from pathogens of animals and plants.
- the glycolipid used for the activation of the innate immunity mechanism is not necessarily derived from the pathogen of the plant, and the innate immunity mechanism of the plant Any microorganism may be used as long as it activates the protein optimally. Therefore, it is considered that microorganisms that have dietary experience such as being used for fermentation and glycolipids of microorganisms that coexist with plants are useful for improving the growth rate of plants and controlling infection. Since it is considered that glycolipids derived from microorganisms symbiotic to plants have a long-term dietary experience, it is no exaggeration to say that safety to animals and humans is guaranteed.
- the present invention has been completed by discovering that the glycolipid has an infection control effect in plants in Pantoea agglomerans which is not a pathogenic fungus to plants. More specifically, for example, when a glycolipid of Pantoea agglomerans was applied to rice white leaf bacilli, it was shown that the pantoea agglomerans glycolipid suppresses rice withering. From this, it is clear that the glycolipid of Pantoea agglomerans increases the infection resistance of plants regardless of the pathogenicity to plants.
- microorganisms symbiotic or parasitic on plants or microorganisms used for fermentation, etc. have dietary experience, so we use the natural immunity mechanism inherent in plants in the need for safe and secure food. It will lead to the provision of new technology that will increase infection, achieve infection control and improve the breeding rate. Furthermore, it is clear that reducing the amount of agricultural chemicals used also contributes to solving environmental problems.
- the present invention relates to a method for activating the innate immunity mechanism present in plants to achieve a safe and safe improvement in the growth rate of plants and to increase infection resistance, and a novel plant growth capable of this
- An object is to provide an agent and a plant disease resistance inducer.
- the plant growing agent of the present invention is characterized by containing a glycolipid derived from Pantoea agglomerans as an active ingredient.
- the plant disease resistance inducer of the present invention is characterized by containing a glycolipid derived from Pantoea agglomerans as an active ingredient.
- the plant growing agent of the present invention is characterized in that a fermentation culture obtained by fermenting a plant with pantoea agglomerans and culturing the pantoea agglomerans is blended.
- the plant disease resistance inducer of the present invention is characterized in that a fermentation culture obtained by fermenting a plant with Pantoea agglomerans and culturing the Pantoea agglomerans is blended.
- the disease control method of the present invention is characterized by controlling plant diseases with the plant disease resistance inducer described above.
- the present invention it is possible to increase the resistance to pathogenic bacteria by increasing the biological defense function of the plant itself, and as a result, it is possible to cultivate crops without using agricultural chemicals as much as possible, or to increase productivity. Become. Moreover, even if the amount of agricultural chemicals is reduced, the cultivation success rate of agricultural crops is increased, and the immunity of plants can be enhanced even in places where there are few useful soil bacteria, so contract cultivation in organic cultivation, non-chemical cultivation, hydroponics, etc. A new type of crop business is promoted.
- Pantoea agglomerans glycolipid Somacy-FL100, manufactured by Innate Immunity Applied Giken Co., Ltd., a product of the implementation of the invention according to Patent Literature 1
- An extract that is, a flour amylase-treated solution obtained by treating wheat flour with amylase, was fermented with pantoea agglomerans, and at the same time, a plant fermentation extract obtained by culturing the pantoea agglomerans) was applied. Distilled water was applied as a control.
- rice white leaf blight fungus (Xanthomonas oryzae pv. Oryzae) was inoculated (applied). Ten days after the inoculation, the lesion length was measured (the length of the fifth leaf withering).
- glycolipids are effective for disease resistance. Furthermore, it was confirmed that the effect appeared more prominently after several hours after the plant and glycolipid contacted.
- the leaves sprayed with only the spreading agent withered the whole leaves yellow.
- the group treated with glycolipid containing a spreading agent and inoculated with pathogenic bacteria showed a marked suppression of disease progression while the entire leaf remained in a healthy color.
- a 5000-fold spreading agent (Agler, manufactured by Agro Kanesho Co., Ltd.) was applied, and a sufficient amount was spread on the pot seedling.
- As a comparative control 500 times propineb wettable powder (anthracol granule wettable powder, manufactured by Bayer Crop Science Co., Ltd.) was sprayed.
- spores (1 ⁇ 10 4 cells / ml) of strawberry anthracnose fungus (Glomerella cingulata, ED25 strain) were inoculated. After inoculation, the chamber was kept in a wet room for 24 hours after inoculation.
- the number of sunspot spots / leaves was investigated 12 days after the spraying treatment, and the disease incidence (%) was calculated.
- the diseased leaflet rate was 10.4% on April 5 and 27.1% on 15th in the glycolipid sprayed area.
- the drug area it was 3.8% on April 5, and 17.7% on the 15th
- the yeast extract spray area it was 24.0% on April 5, and 41.3% on the 15th.
- the untreated area it was 34.8% on April 5 and 59.2% on 15th (FIG. 4).
- “Non-treated” means untreated, “Wheat fermentation extract” is sprinkled with glycolipid, “Agripo” is sprinkled with yeast extract, “Drug” is sprinkled with agricultural chemicals, "100231" is February 23?
- the glycolipid sprayed group did not show the disease suppression ability as much as the drug group, as did the diseased leaflet rate.
- the glycolipid spraying zone is 2.6, and the non-treatment zone is 8.7, and on the 15th, the glycolipid spraying zone is 6.9, and the non-treatment zone is 15.5.
- the ward was less than half of the untreated ward. From this, it was clarified that glycolipid is effective in enhancing infection resistance of strawberry powdery mildew.
- this invention is not limited to the said Example.
- the amount used is not particularly limited, but the glycolipid concentration of Somacy-FL100 and Somacy-SL100, which are the stock solutions of this embodiment product, is 10 mg / ml, Implementation at higher concentrations is not practical. On the other hand, when these stock solutions were diluted up to 200 times, almost no induction of disease resistance was observed. Therefore, the glycolipid concentration is preferably 0.5 mg / ml or more and 10 mg / ml or less.
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Abstract
Description
イネを5葉期まで生育させた。展開しきった第5葉の先端を切断し、切断面に2倍希釈したパントエア・アグロメランス糖脂質(Somacy-FL100、自然免疫応用技研株式会社製、特許文献1に係る発明の実施製品である植物発酵エキス、すなわち、小麦粉をアミラーゼで処理した小麦粉アミラーゼ処理液をパントエア・アグロメランスによって発酵させて、同時に該パントエア・アグロメランスを培養して得られる植物発酵エキス)を塗布した。対照として蒸留水を塗布した。糖脂質処理直後(0h)、または6時間後(6h)にイネ白葉枯れ病菌(Xanthomonas oryzae pv. oryzae)を接種(塗布)した。接種10日後に病斑長の測定(第5葉の枯れの長さ)を行った。
イネを5葉完全展開まで生育させた。パントエア・アグロメランス糖脂質(Somacy-FL100)を10倍希釈となるように1000倍希釈した展着剤(ブラボー、アグロカネショウ株式会社製)に混合し、第5葉を中心にイネ全体に噴霧処理をした。対照として1000倍希釈した展着剤のみを噴霧処理した。糖脂質処理24時間後(24h)にイネ白葉枯れ病菌(Xanthomonas oryzae pv. oryzae)を第5葉に接種した。接種14日後に病斑長の測定(第5葉の枯れの長さ)を行った。
このことから、糖脂質の展着剤との併用処理が病害抵抗性誘導に有効であることが明確となった。
使用したイチゴは展開葉が5葉になるよう葉かぎを行い調整した。パントエア・アグロメランス糖脂質(Somacy-SL100、自然免疫応用技研株式会社製、特許文献1に係る発明の実施製品である植物発酵エキスであり、飼料用である。Somacy-SL100から、ろ過等で供雑物を取り除いたものが食品用のSomacy-FL100であり、両者は、pHが異なるが、糖脂質含量は同じで、10mg/mlである。)はpHを7.0~7.5に調整し、蒸留水で100倍に希釈した。5000倍の展着剤(アグラー、アグロカネショウ株式会社製)を加用し、ポット苗に十分量散布した。比較対照として500倍のプロピネブ水和剤(アントラコール顆粒水和剤、バイエルクロップサイエンス株式会社製)を散布した。糖脂質散布6時間後にイチゴ炭疽病菌(Glomerella cingulata、ED25菌株)の胞子(1×104個/ml)を接種した。接種後は、接種後24時間は湿室状態にした。
発病調査は、散布処理12日後に黒点病斑数/葉を調査し、発病率(%)を算出した。
このことから、糖脂質がイチゴ炭疽病の感染抵抗性の増強に有効であることが明確となった。
イチゴを6葉展開まで生育させた。展開しきったイチゴ株にパントエア・アグロメランス糖脂質(Somacy-SL100)を散布した。糖脂質はpHを7.0~7.5に調整し、蒸留水で20倍に希釈した。1000倍の展着剤(アプローチBI、丸和バイオケミカル株式会社製)を加用し、葉の表裏に25ml/株で散布した。比較対照として、3000倍のトリフミン水和剤(日本曹達株式会社製)と1000倍の酵母菌エキス(株式会社アグリボ製)を散布した。各液の散布は平成22年2月23日から約10日間隔で、3月5日、15日、25日及び4月5日の5回行った。病原菌は接種していない。
このことから、糖脂質がイチゴうどん粉病の感染抵抗性の増強に有効であることが明確となった。
本発明の植物病害抵抗性誘導剤を植物に用いる際、その使用量は特に限定されないが、本実施製品の原液であるSomacy-FL100及びSomacy-SL100の糖脂質濃度は10mg/mlであるため、これよりも濃い濃度における実施は現実的でない。一方、これらの原液を200倍まで希釈すると病害抵抗性の誘導がほとんど見られなかった。このため糖脂質濃度は0.5mg/ml以上10mg/ml以下であることが好ましい。
本明細書で引用したすべての刊行物、特許及び特許出願は、そのまま参考として、ここにとり入れるものとする。
Claims (5)
- パントエア・アグロメランス由来の糖脂質を有効成分として含有することを特徴とする植物育成剤。
- パントエア・アグロメランス由来の糖脂質を有効成分として含有することを特徴とする植物病害抵抗性誘導剤。
- パントエア・アグロメランスによって植物を発酵し、該パントエア・アグロメランスを培養することにより得られる発酵培養物が配合されていることを特徴とする植物育成剤。
- パントエア・アグロメランスによって植物を発酵し、該パントエア・アグロメランスを培養することにより得られる発酵培養物が配合されていることを特徴とする植物病害抵抗性誘導剤。
- 請求項2又は4記載の植物病害抵抗性誘導剤によって植物の病害を防除することを特徴とする植物の病害防除方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US13/497,910 US20120202692A1 (en) | 2009-09-28 | 2010-09-17 | Plant growing agent, plant disease resistance inducer, and plant disease control method |
EP10818759.2A EP2489270A4 (en) | 2009-09-28 | 2010-09-17 | PLANT BREEDING AGENT, RESISTANCE INDUCTOR FOR PLANT HARVEST AND METHOD OF COMBATING PLANT HAZARD |
JP2011532988A JPWO2011037086A1 (ja) | 2009-09-28 | 2010-09-17 | 植物育成剤、植物病害抵抗性誘導剤及び病害防除方法 |
CN2010800435696A CN102647910A (zh) | 2009-09-28 | 2010-09-17 | 植物培育剂,植物病害抗性诱导剂,及植物病害控制方法 |
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JP2009-222962 | 2009-09-28 | ||
JP2009222962 | 2009-09-28 |
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US (1) | US20120202692A1 (ja) |
EP (1) | EP2489270A4 (ja) |
JP (1) | JPWO2011037086A1 (ja) |
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WO (1) | WO2011037086A1 (ja) |
Cited By (2)
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JP2013542987A (ja) * | 2010-11-16 | 2013-11-28 | ユニバーシティー オブ デラウェア | イネの成長を改善し、ヒ素の取り込みを制限するための組成物および方法 |
JP2015502751A (ja) * | 2011-12-13 | 2015-01-29 | モンサント テクノロジー エルエルシー | 植物成長促進微生物およびその使用 |
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CN106011032B (zh) * | 2016-07-29 | 2019-06-28 | 华南农业大学 | 用于防治青枯病的泛菌及其应用 |
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- 2010-09-17 EP EP10818759.2A patent/EP2489270A4/en not_active Withdrawn
- 2010-09-17 JP JP2011532988A patent/JPWO2011037086A1/ja active Pending
- 2010-09-17 WO PCT/JP2010/066202 patent/WO2011037086A1/ja active Application Filing
- 2010-09-17 US US13/497,910 patent/US20120202692A1/en not_active Abandoned
- 2010-09-17 CN CN2010800435696A patent/CN102647910A/zh active Pending
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013542987A (ja) * | 2010-11-16 | 2013-11-28 | ユニバーシティー オブ デラウェア | イネの成長を改善し、ヒ素の取り込みを制限するための組成物および方法 |
JP2015502751A (ja) * | 2011-12-13 | 2015-01-29 | モンサント テクノロジー エルエルシー | 植物成長促進微生物およびその使用 |
JP2018011600A (ja) * | 2011-12-13 | 2018-01-25 | モンサント テクノロジー エルエルシー | 植物成長促進微生物およびその使用 |
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Publication number | Publication date |
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EP2489270A1 (en) | 2012-08-22 |
CN102647910A (zh) | 2012-08-22 |
EP2489270A4 (en) | 2013-06-26 |
JPWO2011037086A1 (ja) | 2013-02-21 |
US20120202692A1 (en) | 2012-08-09 |
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