Phylogenetic Diversity of <i>aprA</i> Genes in Subseafloor Sediments on the Northwestern Pacific Margin off Japan

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  • Aoki Masataka
    Department of Subsurface Geobiological Analysis and Research (D-SUGAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC) Department of Environmental Systems Engineering, Nagaoka University of Technology
  • Kakiuchi Ryota
    Department of Environmental Systems Engineering, Nagaoka University of Technology Department of Construction Systems Engineering, Anan National College of Technology
  • Yamaguchi Takashi
    Department of Environmental Systems Engineering, Nagaoka University of Technology
  • Takai Ken
    Department of Subsurface Geobiological Analysis and Research (D-SUGAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
  • Inagaki Fumio
    Geomicrobiology Group, Kochi Institute for Core Sample Research, JAMSTEC
  • Imachi Hiroyuki
    Department of Subsurface Geobiological Analysis and Research (D-SUGAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

Bibliographic Information

Other Title
  • Phylogenetic Diversity of aprA Genes in Subseafloor Sediments on the Northwestern Pacific Margin off Japan
Published
2015
Resource Type
journal article
DOI
  • 10.1264/jsme2.me15023
Publisher
Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles

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Description

Markedly diverse sequences of the adenosine-5′-phosphosulfate reductase alpha subunit gene (aprA), which encodes a key enzyme in microbial sulfate reduction and sulfur oxidation, were detected in subseafloor sediments on the northwestern Pacific off Japan. The aprA gene sequences were grouped into 135 operational taxonomic units (90% sequence identity), including genes related to putative sulfur-oxidizing bacteria predominantly detected in sulfate-depleted deep sediments. Our results suggest that microbial ecosystems in the subseafloor biosphere have phylogenetically diverse genetic potentials to mediate cryptic sulfur cycles in sediments, even where sulfate is rarely present.

Journal

  • Microbes and Environments

    Microbes and Environments 30 (3), 276-280, 2015

    Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles

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