Isolation, structure determination, and phytotoxicity of unusual dioxopiperazines from the phytopathogenic fungus Phoma lingam. |
| |
| Authors: | M S Pedras C J Biesenthal |
| |
| Institution: | Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon SK S7N 5C9, Canada. |
| |
| Abstract: | The isolation, chemical structure elucidation, and bioactivity of polanrazines B-F, five new dioxopiperazines produced by isolates of the blackleg fungus Phoma lingam, perfect stage Leptosphaeria maculans (Desm.) Ces. et de Not.] originating from Poland, are reported. Polanrazines C and E showed moderate but selective toxicity, causing necrotic and chlorotic lesions (1-3 mm diameter) on brown mustard leaves. |
| |
| Keywords: | |
|
|
