Mycelium extracts of Armillaria trigger a hypersensitive response in sensitive plant cells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F00%3A00002368" target="_blank" >RIV/00216224:14310/00:00002368 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Mycelium extracts of Armillaria trigger a hypersensitive response in sensitive plant cells

Original language description

The genus Armillaria includes serious pathogens causing root rot of a broad host range of plants. Water extracts of mycelium of A. tabescens inhibited the growth of Picea cell cultures and disturbed photosynthesis in leaves of Acer pseudoplatanus measured by fluorimetry. Extracts of mycelium of A. tabescens obtained by supercritical fluid extraction (SFE) trigger a hypersensitive response in suspension of tobacco cells accompanied by an alkalization of extracellular medium and production of active oxygen species. The HPLC analysis and GC-MS of SFE proved the presence of several toxins and sterols, namely ergosterol and dehydroergosterol. This reponse was calcium dependent and was stopped by inhibitors of protein kinases. At least two sterols had elicitor activity; one of them was ergosterol.

Czech name

Mycelium extracts of Armillaria trigger a hypersensitive response in sensitive plant cells

Czech description

The genus Armillaria includes serious pathogens causing root rot of a broad host range of plants. Water extracts of mycelium of A. tabescens inhibited the growth of Picea cell cultures and disturbed photosynthesis in leaves of Acer pseudoplatanus measured by fluorimetry. Extracts of mycelium of A. tabescens obtained by supercritical fluid extraction (SFE) trigger a hypersensitive response in suspension of tobacco cells accompanied by an alkalization of extracellular medium and production of active oxygen species. The HPLC analysis and GC-MS of SFE proved the presence of several toxins and sterols, namely ergosterol and dehydroergosterol. This reponse was calcium dependent and was stopped by inhibitors of protein kinases. At least two sterols had elicitor activity; one of them was ergosterol.

Type

D - Article in proceedings

CEP classification

CE - Biochemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2000

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Book of Abstracts of EFPP Congres 2000, Taormina, Italy

ISBN

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ISSN

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e-ISSN

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Number of pages

1

Pages from-to

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Publisher name

EFPP

Place of publication

Catania

Event location

Catania

Event date

Jan 1, 2000

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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