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

  • 降幡 高志
    東京都立新宿高等学校 〒151-0051 渋谷区千駄ヶ谷6-2-1
  • 滝井 進
    東京都立大学大学院理学研究科生物学専攻 〒192-0397 八王子市南大沢1-1

書誌事項

タイトル別名
  • The Vertical Distribution of Aerobic Endospore-forming Bacteria and Their Sporulation Ratio in the Sediment of a Shallow Pond.
  • 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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説明

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.

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