Biosynthesis of Phenylamide Phytoalexins in Pathogen-Infected Barley.

ABSTRACT: Phytoalexins are inducible antimicrobial metabolites in plants, and have been indicated to be important for the rejection of microbial infection. HPLC analysis detected the induced accumulation of three compounds 1-3 in barley (Hordeum vulgare) roots infected by Fusarium culmorum, the causal agent of Fusarium root rot. Compounds 1-3 were identified as cinnamic acid amides of 9-hydroxy-8-oxotryptamine, 8-oxotryptamine, and (1H-indol-3-yl)methylamine, respectively, by spectroscopic analysis. Compounds 1 and 2 had been previously reported from wheat, whereas 3 was an undescribed compound. We named 1-3 as triticamides A-C, respectively, because they were isolated from barley and wheat, which belong to the Triti

SUBMITTER: Ube N 

PROVIDER: S-EPMC6888128 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature