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Accumulation of Wyerone in Broadbean and Demethylhomopterocarpin in Jack Bean after Inoculation with Phytophthora megasperma var. sojae. N. T. Keen, Associate Professor, Department of Plant Pathology, University of California, Riverside 92502; Phytopathology 62:1365-1366. DOI: 10.1094/Phyto-62-1365.

Extracts from broadbean and jack bean hypocotyls inoculated with the nonpathogen, Phytophthora megasperma var. sojae, contained antifungal compounds that were not detected in extracts from noninoculated plants. The induced antifungal compounds have been identified as wyerone from broadbean and demethylhomopterocarpin from jack bean.

Additional keywords: phytoalexins, polyacetylenes, pterocarpans.