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J. Microbiol. Biotechnol. 2010; 20(8): 1240-1242

Published online August 28, 2010 https://doi.org/10.4014/jmb.1002.02013

Copyright © The Korean Society for Microbiology and Biotechnology.

Growth inhibition of Microcystis aeruginosa by a Glycolipid-type compound from Bacillus subtilis C1

Hee-Sik Kim 1, Chi-Yong Ahn 1, Seung-Hyun Joung 1, Jong-Seog Ahn 1 and Hee-Mock Oh 1*

Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea

Received: February 10, 2010; Accepted: April 2, 2010

Abstract

We attempted to identify the compound responsible for
the growth inhibition of Microcystis aeruginosa occurring
when a culture broth of Bacillus subtilis C1 was added to
the medium. The active compound was purified from B.
subtilis C1 culture broth by adsorption chromatography
and HPLC, and was identified as a type of glycolipid
based on 1H NMR and MS analyses. The purified active
compound completely inhibited the growth of M. aeruginosa
at a concentration of 10 μg/ml. This is the first report of a
glycolipid produced by a Bacillus strain that has potential
as an agent for the selective control of bloom-forming M.
aeruginosa.

Keywords: Bacillus subtilis, glycolipid, growth inhibition, Microcystis aeruginosa