The phytopathogenic fungus Alternaria brassicicola: phytotoxin production and phytoalexin elicitation.
Phytochemistry
; 70(3): 394-402, 2009 Feb.
Article
em En
| MEDLINE
| ID: mdl-19223049
ABSTRACT
The metabolites and phytotoxins produced by the phytopathogenic fungus Alternaria brassicicola (Schwein.) Wiltshire, as well as the phytoalexins induced in host plants, were investigated. Brassicicolin A emerged as the most selective phytotoxic metabolite produced in liquid cultures of A. brassicicola and spirobrassinin as the major phytoalexin produced in infected leaves of Brassica juncea (whole plants). In detached infected leaves of B. juncea, the main component was N'-acetyl-3-indolylmethanamine, the product of detoxification of the phytoalexin brassinin by A. brassicicola. In addition, the structure elucidation of three hitherto unknown metabolites having a fusicoccane skeleton was carried out and the antifungal activity of several plant defenses against A. brassicicola was determined.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Compostos de Espiro
/
Terpenos
/
Tiazóis
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Regulação da Expressão Gênica de Plantas
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Alternaria
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article