PIRONETIN, A NOVEL PLANT GROWTH REGULATOR PRODUCED BY Streptomyces sp. NK10958 I. TAXONOMY, PRODUCTION, ISOLATION AND PRELIMINARY CHARACTERIZATION

SHINICHI KOBAYASHI; KOUICHI TSUCHIYA; TAKASHI HARADA; MITUYUKI NISHIDE; TAKASHI KUROKAWA; TAIZO NAKAGAWA; NOBUYOSHI SHIMADA; KENJI KOBAYASHI

doi:10.7164/antibiotics.47.697

PIRONETIN, A NOVEL PLANT GROWTH REGULATOR PRODUCED BY Streptomyces sp. NK10958

I. TAXONOMY, PRODUCTION, ISOLATION AND PRELIMINARY CHARACTERIZATION

SHINICHI KOBAYASHI, KOUICHI TSUCHIYA, TAKASHI HARADA, MITUYUKI NISHIDE, TAKASHI KUROKAWA, TAIZO NAKAGAWA, NOBUYOSHI SHIMADA, KENJI KOBAYASHI

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JOURNAL FREE ACCESS

1994 Volume 47 Issue 6 Pages 697-702

DOI https://doi.org/10.7164/antibiotics.47.697

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Abstract

A novel plant growth regulator, pironetin, was isolated from the culture broth of Streptomyces sp. NK10958. It was extracted from the culture broth with ethyl acetate and purified by column chromatographies. Pironetin showed 23% inhibition on the growth of rice plants without any loss of crop yield at lOg/a on 9 days before heading.

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