鹿児島県入来カオリン鉱床における微生物被膜の形成  [in Japanese] Formation of Biofilms in Iriki Kaolin Deposit, Kagoshima Prefecture, Japan  [in Japanese]

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Author(s)

    • 伊牟田 [ミハル] IMUTA Miharu
    • 鹿児島大学理学部:金沢大学大学院自然科学研究科 Faculty of Science, Kagoshima University:Graduate School of Natural Science and Technology, Kanazawa University
    • 田崎 和江 TAZAKI Kazue
    • 金沢大学大学院自然科学研究科 Graduate School of Natural Science and Technology, Kanazawa University

Abstract

Red brownish microbial mats grow on the surface of drainage pond at Iriki Kaolin deposit, Kagoshima Prefecture, Japan, are predominantly iron oxidizing bacteria. The Fe-bacteria quickly occur on the surface of acidic water pH 3.4 within few days. The biofilms are composed of amorphous iron hydroxides and ferrihydrite are found both in natural system and cultured solution after 90 days under pH 6→2.5 condition. Optical and SEM-EDX microscopy showed the formation processes of Fe-rich biofilms with green unicellular bacteria occurred in the system of deionized water and kaolinite blocks. In the system, Fe and S-rich biofilms around kaolinite blocks can be seen, suggesting kaolin minerals encourage to form the biofilms as accelerator in the acidic drainage pond. The biofilms use ferrous ions as their energy source through the oxidation into ferric ions.

Journal

  • Journal of the Clay Science Society of Japan (in Japanese)

    Journal of the Clay Science Society of Japan (in Japanese) 47(2), 82-92, 2008

    The Clay Science Society of Japan

References:  48

Codes

  • NII Article ID (NAID)
    110006863808
  • NII NACSIS-CAT ID (NCID)
    AN00199972
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    0470-6455
  • NDL Article ID
    9619409
  • NDL Source Classification
    ZM46(科学技術--地球科学--岩石・鉱物・鉱床)
  • NDL Call No.
    Z17-117
  • Data Source
    CJP  NDL  NII-ELS  IR  J-STAGE 
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