Phylogenetic diversity and distribution of dissimilatory sulfite reductase genes from deep-sea sediment cores

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概要

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• The diversity and distribution of sulfate-reducing prokaryotes (SRP) was investigated in the Nankai Trough sediments of off-central Japan by exploring the diversity of a functional gene, dissimilatory sulfite reductase (dsrAB). Bulk DNAs were extracted from five piston-cored samples (up to 4.5 m long) with 41 vertical sections, and full-length dsrAB gene sequences (ca. 1.9 kb) were PCR amplified and cloned. A total of 382 dsrAB clones yielded eight phylogenetic groups with an indigenous group forming a unique dsrAB lineage. The deltaproteobacterial dsrAB genes were found in almost all sediment samples, especially in the surface layer. One unique dsrAB clone group was also widespread in the dsrAB profiles of the studied sediments, and the percentage of its clones was generally shown gradual increase with sediment depth.

• Springer Science+Business Media, LLC.の論文
• 2007-07-01

著者

• Hayashi Toru

  Graduate School of Science and Technology, Shizuoka University

• Naganuma Takeshi

  Graduate School Of Biosphere Science Hiroshima University Kagamiyama Higashi-hiroshima Hiroshima 739

• Tanahashi Manabu

  Institute For Geo-resources And Environment National Institute Of Advanced Industrial Science And Te

• KANEKO Ryo

  Graduate School of Biosphere Science, Hiroshima University

• Kaneko Ryo

  Graduate School Of Biosphere Science Hiroshima University

• Naganuma Takeshi

  Graduate School Of Biosphere Science Hiroshima University

• Hayashi Toru

  Graduate School Of Biosphere Science Hiroshima University

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