Studies on Phytoalexins I. The Formation and the Immunological Significance of Phytoalexin Produced by Phaseolus Vulgaris in Response to Infections With Sclerotinia Fructicola and Phytophthora Infestans

Abstract

In using the inner epidermis of Phaseolu8 vulgaris pods as host .tissue and Sclerotinia jructicola and Phytophthora infestans as pathogens which interact in a hypersensitive fashion, a principle (or principles?) was separated from the former which exerts a strongly inhibitory effect on the growth of the latter. It is shown that this principle (phytoalexin):