Catellibacterium nectariphilum gen. nov., sp. nov., which requires a diffusible compound from a strain related to the genus Sphingomonas for vigorous growth

DOI Web Site 被引用文献11件
  • Yasuhiro Tanaka
    Research Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
  • Satoshi Hanada
    Research Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
  • Akira Manome
    Central Research Laboratories of Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki, Kanagawa 210-8186, Japan
  • Takayasu Tsuchida
    Central Research Laboratories of Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki, Kanagawa 210-8186, Japan
  • Ryuichiro Kurane
    Research Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
  • Kazunori Nakamura
    Research Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
  • Yoichi Kamagata
    Research Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan

抄録

<jats:p>A bacterial strain, designated AST4<jats:sup>T</jats:sup>, was isolated from activated sludge. The bacterium did not show significant growth on nutrient broth, but growth was clearly stimulated by addition of supernatant from other bacterial cultures. Culture filtrate of a strain related to the genus <jats:italic>Sphingomonas</jats:italic> in particular increased the cell yield and growth rate of strain AST4<jats:sup>T</jats:sup>. Phylogenetic analysis based on the 16S rRNA gene sequences showed that strain AST4<jats:sup>T</jats:sup> is located within the ‘<jats:italic>Rhodobacter</jats:italic> group’ in the <jats:italic>α</jats:italic>-3 subclass of <jats:italic>Proteobacteria</jats:italic>, but is clearly distant from related genera in this group such as <jats:italic>Paracoccus</jats:italic>, <jats:italic>Rhodobacter</jats:italic> and <jats:italic>Rhodovulum</jats:italic>. Strain AST4<jats:sup>T</jats:sup> is a Gram-negative, non-motile, rod-shaped (0·6–0·8×1·3–2·0 μm) and aerobic bacterium. It was not able to reduce nitrate to nitrite or N<jats:sub>2</jats:sub>. No phototrophic growth was observed. Optimal growth occurred at 30 °C and pH 6·5–7·5. The dominant cellular fatty acid in the isolate was C<jats:sub>18 : 1</jats:sub> <jats:italic>cis</jats:italic>11. Ubiquinone-10 was the major respiratory quinone. The G+C content was 64·5 mol% (by HPLC). Based on the phylogenetic and phenotypic traits, the name <jats:italic>Catellibacterium nectariphilum</jats:italic> gen. nov., sp. nov. is proposed for this isolate; the type strain is AST4<jats:sup>T</jats:sup> (=NBRC 100046<jats:sup>T</jats:sup>=JCM 11959<jats:sup>T</jats:sup>=DSM 15620<jats:sup>T</jats:sup>).</jats:p>

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