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Phytoalexins from Dolichos biflorus
- Keen, Noel T., Ingham, John L.
- Zeitschrift für Naturforschung 2014 v.35 no.11-12 pp. 923-926
- Dolichos, Macrotyloma uniflorum, Phytophthora megasperma, Pseudomonas, coumestrol, genistein, leaves, phytoalexins, stems
- Genistein, 2′-hydroxygenistein, dalbergioidin, kievitone and phaseollidin have been found to accumulate in leaves and stems of Dolichos biflorus (horsegram) following inoculation with the non-pathogens Pseudomonas pisi and Phytophthora megasperma f. sp. glycinea, respectively. They are accompanied by isoferreirin (5,7,4′-trihydroxy-2′-methoxyisoflavanone), a compound not previously reported as a natural product. Coumestrol and psoralidin occur constitutively in Dolichos leaves and stems.