Biochemical Studies on Sclerotinia Libertiana

Part 2. (I) Uterus-contracting Constitutent. (ii)

Abstract

Physiological action of the alcoholic extracts of sclerotia and mycelial mass formed by the culture of Scl, Lib. on grain byproducts (rice-bran, ctc.), after being evaporated to small vol. and treated by a proper process, was tested pn cock's comb, frog's pupil, frog's vessel and rabbit uterus.
It was found that the extracts like ergot's alkaloid suppressed the motor action of adrenaline on the iris muscle or blood vessel of frog, and uterus-active constituent was somewhat rich in the mycelial mass formed by a mutant Sm, rather than in mycelial mass, which contains sclerotia, formed by the original strain Ss.