STUDIES ON VALIDAMYCINS, NEW ANTIBIOTICS. IV

Abstract

Newantibiotics named validamycins A and B, active against the sheath blight of rice plants, were isolated from the culture nitrate of Streptomyces hygroscopicus var. limoneus. Validamycins A and B are water-soluble, glucosecontaining basic antibiotics, and with molecular formulae of C20H3337NO1314 and C20H3337NO1415, respectively.