Characterization of Bacillus strains of marine origin

Authors

  • Elena P. Ivanova Pacific Institute of Bio-organic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia; an Institute of Marine Biology, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
  • Mikhail V. Vysotskii Institute of Marine Biology, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
  • Vasilii I. Svetashev Institute of Marine Biology, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
  • Olga I. Nedashkovskaya Pacific Institute of Bio-organic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
  • Natalia M. Gorshkova Pacific Institute of Bio-organic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
  • Valery V. Mikhailov Pacific Institute of Bio-organic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
  • Noboru Yumoto Osaka National Research Institute, AIST, Ikeda, Osaka, Japan
  • Yasushi Shigeri Osaka National Research Institute, AIST, Ikeda, Osaka, Japan
  • Takahisa Taguchi Osaka National Research Institute, AIST, Ikeda, Osaka, Japan
  • Susumu Yoshikawa Osaka National Research Institute, AIST, Ikeda, Osaka, Japan

Keywords:

Bacillus spp., phenotypic characterization, fatty acid analysis, marine microbiology

Abstract

A total of twenty aerobic endospore-forming bacilli, isolated from marine invertebrates and sea water of different areas of the Pacific Ocean, were taxonomically characterized. Most of the bacilli (11 strains) of marine origin belonged to the species Bacillus subtilis, according to their phenotypic characteristics, antibiotic susceptibility profiles, and fatty acids patterns. A group of four alkaliphilic strains formed a separate cluster that was tentatively classified as B. horti. One isolate, KMM 1717, associated with a sponge from the Coral Sea was identified as B. pumilus. Two strains, Bacillus KMM 1916 and KMM 1918, showed antibiotic sensitivity profiles similar to B. licheniformis, but they had a distinct fatty acid composition and peculiar phenotypic traits. The taxonomic affiliation of KMM 1810 and KMM 1763 remained unclear since their fatty acid composition and antibiotic sensitivity patterns were not resembled with none of these obtained for Bacillus strains.

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Published

2010-03-16

Issue

Section

Research Articles