Potato Suberin Induces Differentiation and Secondary Metabolism in the Genus Streptomyces

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Bacteria of the genus <i>Streptomyces</i> are soil microorganisms with a saprophytic life cycle. Previous studies have revealed that the phytopathogenic agent <i>S. scabiei</i> undergoes metabolic and morphological modifications in the presence of suberin, a complex plant polymer. This paper investigates morphological changes induced by the presence of potato suberin in five species of the genus <i>Streptomyces</i>, with emphasis on <i>S. scabiei</i>. <i>Streptomyces scabiei</i>, <i>S. acidiscabies</i>, <i>S. avermitilis</i>, <i>S. coelicolor</i> and <i>S. melanosporofaciens</i> were grown both in the presence and absence of suberin. In all species tested, the presence of the plant polymer induced the production of aerial hyphae and enhanced resistance to mechanical lysis. The presence of suberin in liquid minimal medium also induced the synthesis of typical secondary metabolites in <i>S. scabiei</i> and <i>S. acidiscabies</i> (thaxtomin A), <i>S. coelicolor</i> (actinorhodin) and <i>S. melanosporofaciens</i> (geldanamycin). In <i>S. scabiei</i>, the presence of suberin modified the fatty acid composition of the bacterial membrane, which translated into higher membrane fluidity. Moreover, suberin also induced thickening of the bacterial cell wall. The present data indicate that suberin hastens cellular differentiation and triggers the onset of secondary metabolism in the genus <i>Streptomyces</i>.<br>

収録刊行物

  • Microbes and environments

    Microbes and environments 27(1), 36-42, 2012-03-01

    日本微生物生態学会・日本土壌微生物学会

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各種コード

  • NII論文ID(NAID)
    10030122665
  • NII書誌ID(NCID)
    AA11173196
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13426311
  • NDL 記事登録ID
    023470092
  • NDL 請求記号
    Z54-J644
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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