Bacterial Population Dynamics in a Reverse-Osmosis Water Purification System Determined by Fluorescent Staining and PCR-Denaturing Gradient Gel Electrophoresis

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概要

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• The bacterial population dynamics in an industrial scale reverse-osmosis (RO) water purification system were analyzed by fluorescent staining methods and denaturing gradient gel electrophoresis (DGGE). Bacterial numbers increased with storage in a tank, and bacterial diversity changed during the water purification process. A DNA sequence-based analysis of the major bands on the DGGE gel revealed that Simonsiella sp. (Betaproteobacteria) was abundant in the source water (activated sludge-treated waste effluent), while Bosea sp. and Rhizobium sp. (Alphaproteobacteria), which usually exist in an oligotrophic environment, became abundant during the water purification process. These results suggest the importance of microbiological monitoring by culture-independent methods for quality control in RO water purification systems. These methods could provide an early warning of impending problems and clarify critical steps in controlling specific bacteria contributing to the contamination of RO water systems.

• 日本微生物生態学会・日本土壌微生物学会の論文
• 2009-06-01

著者

• BABA TAKASHI

  Graduate School of Pharmaceutical Sciences, Osaka University

• YAMAGUCHI NOBUYASU

  Graduate School of Pharmaceutical Sciences, Osaka University

• NASU MASAO

  Graduate School of Pharmaceutical Sciences, Osaka University

• Nasu M

  Graduate School Of Pharmaceutical Sciences Osaka University

• Nasu Masao

  Graduate School Of Pharmaceutical Sciences Osaka University

• Baba Takashi

  Graduate School Of Pharmaceutical Sciences Osaka University

• Yamaguchi Nobuyasu

  Graduate School Of Pharmaceutical Sciences Osaka University

• Matsumoto Rie

  Graduate School Of Pharmaceutical Sciences Osaka University

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