Antibiotics from basidiomycetes. xviii) strobilurin c and oudemansin b, two new antifungal metabolites from xerula species (agaricales)

Abstract

Two new antifungal (E)-β-methoxyacrylates, strobilurin C and oudemansin B, were isolated from cultures of Xerula longipes and Xerula melanotricha. Their structures were elucidated by spectroscopic methods. Both antibiotics inhibit the growth of a wide variety of saprophytic and phytopathogenic fungi at very low concentrations. Like strobilurins A, B, and oudemansin A the new metabolites are potent inhibitors of respiration. © 1983, JAPAN ANTIBIOTICS RESEARCH ASSOCIATION. All rights reserved.