• Title/Summary/Keyword: 용균

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A Study on the Taxonomic Status for Nitrogen-Fixing, Methanol Utilizing Oligotrophic Bacteria (저영양세균중(低營養細菌中) 질소고정균(窒素固定菌) 및 메타놀이용균(利用菌)의 분류학적위치(分類學的位置)에 관(關)하여)

  • Shin, Gawan Chull;Whang, Kyung Sook;Hattori, Tsutomu
    • Korean Journal of Agricultural Science
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    • v.16 no.2
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    • pp.163-168
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    • 1989

  • Fourty-four isolates showed acetylene-reducing(nitrogenase)activity under the atmosphere of 89% Ar, 10% $C_2H_2$ and 1 % $O_{2{\cdot}}$, these nitrogen-fixing isolates characterized chemotaxonomically and their taxonomic status was disscussed; twenty-three isolates corresponded to Azospirillum. They were curved/spiral rods, gram negative, motile by a polar flagellum, and also utilized glucose in nitrogen free medild by a polar flagellum, and also utilized glucose in nitrogen free medium. but the cellular fatty acid composition and quinone system of these isolates showed quite different characteristics with reference strains. Therefore, the taxonomic status of this nitrogen-fixing bacteria is disscussed and a new species Azospirillum. Sixty forur isolates utilized C-l compounds such as methanol and formic acid. phenotypic and chemotaxonomic characteristics of methanol utilizing isolates were investigated and their taxonomic status was discussed; Twenty-one isolates corresponded to Hyphomicrobium and for the other regular rods and irregular rods utilizing isolates showed different cellular fatty acid composition. These isolates were grouped into 8 cluster analysis and similarity values based on correlation coefficients. Among these 8 clusters, two corresponded Pseudomonas and for the other were not decided.

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