Co-Authors:
Stierle, A., Department of Plant Pathology, Montana State University, Bozeman, MT 59717, United States
Hershenhorn, J., Department of Plant Pathology, Montana State University, Bozeman, MT 59717, United States
Strobel, G., Department of Plant Pathology, Montana State University, Bozeman, MT 59717, United States
Abstract:
The organic extract of the fungus Alternaria cichorii, a pathogen of Russian knapweed, was analysed. A series of zinniol-related compounds with varying degrees of phytotoxicity have been isolated for the first time from the organic extract of a pathogenic fungus. The structures of all of the compounds, which include cichorine, zinniol, and the four novel compounds zinnimidine, Z-hydroxyzinnimidine, zinnol and zinndiol, were determined by spectroscopic methods. © 1993.