The Vertical Distribution of Aerobic Endospore-forming Bacteria and Their Sporulation Ratio in the Sediment of a Shallow Pond.

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  • FURIHATA TAKASHI
    Tokyo Metropolitan Shinjuku Senior High School, 6-2-1 Sendagaya, Shibuya-ku, Tokyo 151-0051, Japan
  • TAKII SUSUMU
    Department of Biology, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan

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Other Title
  • 浅い池の底泥における好気性内生胞子形成細菌とその胞子形成率の垂直分布
  • アサイ イケ ノ テイデイ ニ オケル コウキセイ ナイセイ ホウシ ケイセイ サイキン ト ソノ ホウシ ケイセイリツ ノ スイチョク ブンプ

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The sporulation ratios in two dominant Bacillus groups were estimated both in the surface and deep sedimentary layers of a shallow pond.More than 60% of the members of A-group, represented by Bacillus megaterium, existed as vegetative cells both in the surface and deep layers.Although they have been regarded as strict aerobes, they seemed to have grown very slowly in the anaerobic condition.In contrast, More than 60% of the members of B-group, mainly consisting of Bacillus thuringiensis, existed as spores in the surface layer.

Journal

  • Microbes and Environments

    Microbes and Environments 15 (2), 119-123, 2000

    Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles

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