2000
Mycelium extracts of Armillaria trigger a hypersensitive response in sensitive plant cells
KAŠPAROVSKÝ, Tomáš, Lea LOJKOVÁ a Vladimír MIKEŠZákladní údaje
Originální název
Mycelium extracts of Armillaria trigger a hypersensitive response in sensitive plant cells
Autoři
KAŠPAROVSKÝ, Tomáš (203 Česká republika, garant), Lea LOJKOVÁ a Vladimír MIKEŠ (203 Česká republika)
Vydání
Catania, Book of Abstracts of EFPP Congres 2000, Taormina, Italy, s. 63-63, 2000
Nakladatel
EFPP
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Itálie
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/00:00002368
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
Elicitor; Armillaria; defence reactiion
Štítky
Změněno: 20. 5. 2009 16:43, prof. Mgr. Tomáš Kašparovský, Ph.D.
V originále
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.
Česky
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.
Návaznosti
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