THIENODOLIN, A NEW PLANT GROWTH-REGULATING SUBSTANCE PRODUCED BY A STREPTOMYCETE STRAIN .1. TAXONOMY AND FERMENTATION OF THE PRODUCING STRAIN, AND THE ISOLATION AND CHARACTERIZATION OF THIENODOLIN
K. Kanbe et al., THIENODOLIN, A NEW PLANT GROWTH-REGULATING SUBSTANCE PRODUCED BY A STREPTOMYCETE STRAIN .1. TAXONOMY AND FERMENTATION OF THE PRODUCING STRAIN, AND THE ISOLATION AND CHARACTERIZATION OF THIENODOLIN, Bioscience, biotechnology, and biochemistry, 57(4), 1993, pp. 632-635
Thienodolin, a new plant growth-regulating substance, was isolated fro
m the fermentation broth of a streptomycete strain identified as Strep
tomyces albogriseolus. The active principle was extracted with ethyl a
cetate and purified by silica gel column chromatography and preparativ
e HPLC. The substance showed growth promoting activity with 1.2 x 10(-
6)-1.2 x 10(-5) m treatment to rice seedlings, and inhibitory activity
with 4.0 x 10(-5) m treatment.