WO1999049729A1 - Method for controlling bacterial blotch disease in edible mushrooms - Google Patents
Method for controlling bacterial blotch disease in edible mushrooms Download PDFInfo
- Publication number
- WO1999049729A1 WO1999049729A1 PCT/NL1999/000188 NL9900188W WO9949729A1 WO 1999049729 A1 WO1999049729 A1 WO 1999049729A1 NL 9900188 W NL9900188 W NL 9900188W WO 9949729 A1 WO9949729 A1 WO 9949729A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mushrooms
- wlip
- lipodepsipeptide
- lipodepsipeptides
- takes place
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- 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
- 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
- A01N63/50—Isolated enzymes; Isolated proteins
Definitions
- the present invention relates to a method for controlling bacterial blotch disease in edible mushrooms, to the result of the method and to products for use in the method.
- Edible mushrooms are products about which most consumers have a definite opinion. In particular, mushrooms must have a white colour and be unblemished.
- Infection with Pseudomonas tolaasii results in pits and brown blotches which affect the appearance of particularly white mushrooms, such as the button mushroom. This results in an average of 10-15% of the harvest being rejected, being given a lower classification or having to be processed into preserves.
- Pseudomonas tolaasii is actually always present in the compost on which mushrooms are cultivated.
- Lipodepsipeptides are molecules which partially consist of a peptide structure, contain a lipid part and have a lactone ring.
- One of the best known lipodepsipeptides is the so-called "White Line Inducing Principle" or WLIP. This is a substance which is found in the white line which results when saprophytic Pseudomonas species, which are jointly designated as P. reactans, are grown in agar together with Pseudomonas tolaasii, the cause of blotch disease.
- the structure of WLIP is shown in Figure 1.
- WLIP The official name of WLIP is ⁇ -hydroxydecanoyl-LLeu-DGlu-D, allo-Thr-DVal-DLeu-DSer- LLeu-DSer-LIle.
- another lipodepsipeptide occurs which bears the name viscosin and only differs from WLIP in the chirality of Leu5, which in the case of viscosin has the L-configuration and in the case of WLIP the D-configuration. Viscosin is produced by Pseudomonas viscosa.
- lipodepsipeptides can also be used according to the invention, provided they have a ⁇ -structure.
- crude preparations of the lipodepsipeptides and purified forms thereof can be used to treat bacterial blotch disease.
- the method according to the invention is in principle suitable for all edible mushrooms which have bacterial blotch disease. Because the lipodepsipeptides have a white colour they can therefore be used as such for the treatment of white mushrooms, such as A ⁇ aricus bisporus (button mushroom) , A ⁇ aricus arvensis (horse mushroom) , A ⁇ aricus bitorquis (torq) , and Flamulina velutipes and Pleurotus spec, (white oyster mushroom) .
- a diluted solution is preferably used or a dye is added to the lipodepsipeptide preparation, since white blotches would otherwise result from the treatment .
- the treatment of the mushrooms can take place at different moments in time and in different ways.
- a solution of one or more of the lipodepsipeptides can be atomized or sprayed over the culture bed.
- the culture bed can further be watered with a solution containing the compound (s). These treatments take place before harvesting.
- the treatment after harvesting can for instance consist of atomizing or spraying with a solution containing one or more lipodepsipeptides.
- the compound (s) can be administered in a concentration between 1 mg/1 and 1 g/1, preferably 0.1 g/1. 10 ml of the compound is for instance administered per kilogram of mushrooms.
- the invention further relates to edible mushrooms which are the result of a method according to the invention.
- the invention relates to a preparation of one or more lipodepsipeptides for the treatment of bacterial blotch disease in edible mushrooms.
- the present invention will be further elucidated with reference to the following examples, which are only intended by way of illustration and do not limit the invention in any way.
- a WLIP preparation was prepared by centrifuging off an overnight culture of Pseudomonas reactans cultured in a medium suitable for this purpose. The supernatant was stored in frozen state. After defrosting the supernatant was filtered and acidified. The resulting precipitate was collected and resuspended in water. The pH of the solution was made slightly alkaline and the preparation was filtered. The filtrate was then acidified again. The resulting precipitate was collected and dried. This is referred to as "crude extract of WLIP".
- Caps of the button mushroom (A.bisporus ⁇ l) were treated with water (dark bars) or with the crude extract of WLIP (light bars) in a concentration of 6.6 mg/ml.
- the caps were subsequently infected with different concentrations of Pseudomonas tolaasii.
- the brown staining was measured with a Minolta colorimeter and detected after 2 days incubation at 18°C.
- the degree of brown staining was calculated by deriving AE from the changes in the L-, a- and b-parameters in accordance with the formula:
- Caps of the button mushroom (A.bisporus Ul) were treated with different concentrations of a crude extract of WLIP.
- the caps were subsequently infected with Pseudomonas tolaasii in a concentration of 5.5 x 10 7 cells per ml (dark bars) or 1.3 x 10 7 (light bars) and the brown staining was detected after 2 days incubation at 18°C.
- the results are shown in Fig. 3.
- Caps of the button mushroom (A.bisporus Ul) were treated with water (dark bars) or a crude extract of WLIP in a concentration of 2.4 mg/ml (light bars). The caps were subsequently infected with different concentrations of Pseudomonas tolaasii. Incubation took place for 2 days at 4°C (Fig. 5b) or 18°C (Fig. 5a) . The brown staining was then determined.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Environmental Sciences (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Virology (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99913735A EP1065932A1 (en) | 1998-04-01 | 1999-03-30 | Method for controlling bacterial blotch disease in edible mushrooms |
AU31730/99A AU3173099A (en) | 1998-04-01 | 1999-03-30 | Method for controlling bacterial blotch disease in edible mushrooms |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1008781 | 1998-04-01 | ||
NL1008781A NL1008781C2 (en) | 1998-04-01 | 1998-04-01 | Method for combating bacterial spot disease in edible mushrooms. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999049729A1 true WO1999049729A1 (en) | 1999-10-07 |
Family
ID=19766875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1999/000188 WO1999049729A1 (en) | 1998-04-01 | 1999-03-30 | Method for controlling bacterial blotch disease in edible mushrooms |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1065932A1 (en) |
AU (1) | AU3173099A (en) |
NL (1) | NL1008781C2 (en) |
WO (1) | WO1999049729A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0210734A1 (en) * | 1985-06-14 | 1987-02-04 | BURNS, PHILP & COMPANY LIMITED | Mushroom blotch control agent |
JPH09227321A (en) * | 1996-02-29 | 1997-09-02 | Norin Suisansyo Sanshi Konchu Nogyo Gijutsu Kenkyusho | Controller for disease damage of mushroom and control |
-
1998
- 1998-04-01 NL NL1008781A patent/NL1008781C2/en not_active IP Right Cessation
-
1999
- 1999-03-30 WO PCT/NL1999/000188 patent/WO1999049729A1/en not_active Application Discontinuation
- 1999-03-30 AU AU31730/99A patent/AU3173099A/en not_active Abandoned
- 1999-03-30 EP EP99913735A patent/EP1065932A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0210734A1 (en) * | 1985-06-14 | 1987-02-04 | BURNS, PHILP & COMPANY LIMITED | Mushroom blotch control agent |
JPH09227321A (en) * | 1996-02-29 | 1997-09-02 | Norin Suisansyo Sanshi Konchu Nogyo Gijutsu Kenkyusho | Controller for disease damage of mushroom and control |
Non-Patent Citations (3)
Title |
---|
CHEMICAL ABSTRACTS, vol. 116, no. 92, 2 March 1919, Columbus, Ohio, US; abstract no. 80325, BRODEY, CATHERINE L. ET AL: "Bacterial blotch disease of the cultivated mushroom is caused by an ion channel forming lipodepsipeptide toxin" XP002085583 * |
MOL. PLANT-MICROBE INTERACT. (1991), 4(4), 407-11 CODEN: MPMIEL;ISSN: 0894-0282 * |
PATENT ABSTRACTS OF JAPAN vol. 098, no. 001 30 January 1998 (1998-01-30) * |
Also Published As
Publication number | Publication date |
---|---|
EP1065932A1 (en) | 2001-01-10 |
NL1008781C2 (en) | 1999-10-04 |
AU3173099A (en) | 1999-10-18 |
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