Linear 3-Hydroxybutyrate Tetramer (HB4) Produced by Sphingomonas sp. Is Characterized as a Growth Promoting Factor for Some Rhizomicrofloral Composers

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Sphingomonas spp. of α-proteobacteria often play a role in assisting the development of microfloral communities under adverse soil conditions. Using a Frateuria sp. as an indicator for bacterial growth assay, we investigated the bacterial growth-promoting factor in the culture fluids of Sphingomonas sp. EC-K085. This factor was successfully isolated and identified as linear (R,R,R,R)-3-hydroxybutyrate tetramer (HB4), having a hydroxy-end and a carboxy-end group. When 28 μg of HB4 was charged on a paper disc, impregnated Frateuria sp. cells in modified Winogradsky agar medium exhibited a promoted cell growth to form a clear colony emerging zone after a 2-day incubation.

<I>Sphingomonas</I> spp. of α-proteobacteria often play a role in assisting the development of microfloral communities under adverse soil conditions. Using a <I>Frateuria</I> sp. as an indicator for bacterial growth assay, we investigated the bacterial growth-promoting factor in the culture fluids of <I>Sphingomonas</I> sp. EC-K085. This factor was successfully isolated and identified as linear (<I>R</I>,<I>R</I>,<I>R</I>,<I>R</I>)-3-hydroxybutyrate tetramer (HB4), having a hydroxy-end and a carboxy-end group. When 28 μg of HB4 was charged on a paper disc, impregnated <I>Frateuria</I> sp. cells in modified Winogradsky agar medium exhibited a promoted cell growth to form a clear colony emerging zone after a 2-day incubation.

収録刊行物

  • Bioscience, biotechnology, and biochemistry  

    Bioscience, biotechnology, and biochemistry 70(9), 2325-2329, 2007-09-23 

    日本農芸化学会 (Japan Society for Bioscience, Biotechnology, and Agrochemistry)

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各種コード

  • NII論文ID(NAID)
    10018527670
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    09168451
  • NDL 記事登録ID
    8073884
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  CJP引用  NDL  IR  J-STAGE 
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