A New isoflavanone phytoalexin from Medicago rugosa.
An isoflavonoid phytoalexin produced by the fungus-inoculated leaflets of Medicago rugosa Desr. has been formulated as (+/-)-7,4'-dimethoxy-2'-hydroxyisoflavanone (isosativanone). This compound cooccurs with the known isoflavonoid fungitoxins, (-)-medicarpin, (-)-vestitol, (-)-isosativanand(+/-)-vestitone.
Ingham
J L
JL
Department of Botany, University of Reading, Reading, England.