期刊
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
卷 68, 期 11, 页码 5367-5373出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.68.11.5367-5373.2002
关键词
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Identifying microorganisms responsible for recognized environmental processes remains a great challenge in contemporary microbial ecology. Only in the last few years have methodological innovations provided access to the relationship between the function of a microbial community and the phylogeny of the organisms accountable for it. In this study stable-isotope-labeled [C-13]phenol was fed into a phenol-degrading community from an aerobic industrial bioreactor, and the C-13-labeled RNA produced was used to identify the bacteria responsible for the process. Stable-isotope-labeled RNA was analyzed by equilibrium density centrifugation in concert with reverse transcription-PCR and denaturing gradient gel electrophoresis. In contradiction with findings from conventional methodologies, this unique approach revealed that phenol degradation in the microbial community under investigation is dominated by a member of the Thauera genus. Our results suggest that this organism is important for the function of this bioreactor.
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