Host-Pathogen Interactions | Zendy

Jürgen Ebel | Zendy; Arthur R. Ayers | Zendy; Peter Albersheim | Zendy

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Host-Pathogen Interactions

Author(s) -

Jürgen Ebel,

Arthur R. Ayers,

Peter Albersheim

Publication year - 1976

Publication title -

plant physiology

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.57.5.775

Subject(s) - phytophthora megasperma , phytoalexin , elicitor , phenylalanine ammonia lyase , biology , phenylpropanoid , fungus , mycelium , botany , crucifer , glucan , phytophthora sojae , pathogen , microbiology and biotechnology , biochemistry , enzyme , biosynthesis , peroxidase , resveratrol

The glucan elicitor isolated from the mycelial walls of Phytophthora megasperma var. sojae, the fungus which causes stem and root rot in soybeans, stimulates the activity of phenylalanine ammonia-lyase and the accumulation of glyceollin in suspension-cultured soybean cells. Nigeran, a commercially available fungal wall glucan, was the only other compound tested which has any activity in this system. Glyceollin is a phenylpropanoid-derived phytoalexin which is toxic to P. megasperma var. sojae. Evidence is presented to support the hypothesis that the action of elicitors in stimulating phytoalexin synthesis is not species or variety specific but, rather, is part of a general defensive response of plants.

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