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Verstärkung der Phytoalexinakkumulation in mit einem Elicitor behandelten Epikotylen von Erbsen ( Pisum sativum ) durch einen Inhibitor der Diacylglycerolkinase.
Author(s) -
Toyoda K.,
Kawahara T.,
Ichinose Y.,
Yamada T.,
Shiraishi T.
Publication year - 2000
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.2000.00568.x
Subject(s) - phytoalexin , epicotyl , elicitor , diacylglycerol kinase , biology , pisum , sativum , coriandrum , phenylalanine ammonia lyase , biochemistry , kinase , botany , protein kinase c , enzyme , hypocotyl , peroxidase , resveratrol
When epicotyl tissues of pea were treated with a diacylglycerol (DAG) kinase inhibitor (R59022), enhanced induction of the phytoalexin accumulation occurred which was induced by fungal elicitor. The marked induction was associated with a sustained accumulation of phenylalanine ammonia‐lyase (PAL)‐mRNA and the consequent increase in PAL activity. These results suggest that inhibition of DAG breakdown leads to increased induction of phytoalexin accumulation and support the hypothesis that DAG kinase negatively regulates the signal transduction.