Cohn's Crenothrix is a filamentous methane oxidizer with an unusual methane monooxygenase

Kilian Stöcker, B Bendinger, Björn Schöning, Per Hostrup Nielsen, Jeep L. Nielsen, Christian Baranyi, Elena Tönshoff, Holger Daims, Michael Wagner

    Publications: Contribution to journalArticlePeer Reviewed

    Abstract

    135 years ago Ferdinand Cohn, the founder of bacteriology, microscopically observed a conspicuous filamentous bacterium with a complex life cycle and described it as Crenothrix polyspora. This uncultured bacterium is infamous for mass developments in drinking water systems, but its phylogeny and physiology remained unknown. We show that C. polyspora is a gammaproteobacterium closely related to methanotrophs and capable of oxidizing methane. We discovered that C. polyspora encodes a phylogenetically very unusual particulate methane monooxygenase whose expression is strongly increased in the presence of methane. Our findings demonstrate a previously unrecognized complexity of the evolutionary history and cell biology of methane-oxidizing bacteria. Œ 2006 by The National Academy of Sciences of the USA.
    Original languageEnglish
    Pages (from-to)2363-2367
    Number of pages5
    JournalProceedings of the National Academy of Sciences of the United States of America (PNAS)
    Volume103
    Issue number7
    DOIs
    Publication statusPublished - 2006

    Austrian Fields of Science 2012

    • 106022 Microbiology

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