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Article
Mesoaciditoga lauensis gen. nov., sp. nov., a moderate thermoacidophilic Thermotogales from a deep-sea hydrothermal vent
International Journal Of Systematic And Evolutionary Microbiology
  • Anna-Louise Reysenbach, Portland State University
  • Yitai Liu, Portland State University
  • Annie R. Lindgren, Portland State University
  • Issac D. Wagner, Portland State University
  • Christine Demko Sislak, Portland State University
  • Anchelique Mets, Royal Netherlands Institute for Sea Research
  • Stefan Schouten, Royal Netherlands Institute for Sea Research
Document Type
Post-Print
Publication Date
8-1-2013
Subjects
  • Thermophilic bacteria -- Pacific Ocean,
  • Water -- Microbiology,
  • Thermophilic bacteria -- Phylogeny,
  • Hydrothermal vent ecology -- Pacific Ocean
Disciplines
Abstract

A novel moderately thermophilic, heterotrophic bacterium was isolated from a deep-sea hydrothermal vent deposit from the Mariner field along the Eastern Lau Spreading Center, Southwestern Pacific. Cells were short motile rods (about 0.4 μm-0.8 μm) that occurred singly or in pairs and were surrounded by a sheath-like membrane or ‘toga’. The cells grew between 45 and 65°C (optimum 57-60°C), pH 4.1-6.0 (optimum pH 5.5-5.7) and optimally at 3% (w/v) NaCl. The isolate grew on a range of carbon and proteinaceous substrates and reduced sulfur. The G + C content of the DNA was about 45 mol%. Phylogenetic analysis of the 16S rRNA gene placed the new isolate as a deeply diverging lineage within the Thermotogales. Based on the physiological, morphological and phylogenetic data, the isolate is a novel species of a new genus with the proposed name Mesoaciditoga lauensis gen. nov. sp. nov. The type strain is cd-1655RT (DSM 25116, OCM 1212).

Description

DOI: 10.1099/ijs.0.050518-0

This is an author manuscript that has been accepted for publication in International Journal of Systematic and Evolutionary Microbiology, copyright International Union of Microbiological Societies, but has not been copy-edited, formatted or proofed. Available to download after a 24 month embargo period from the date of publication. Cite this article as appearing in International Journal of Systematic and Evolutionary Microbiology.

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DOI
10.1099/ijs.0.050518-0
Persistent Identifier
http://archives.pdx.edu/ds/psu/10810
Citation Information
Reysenbach, A. L., Y. Liu, A. R. Lindgren, I. D. Wagner, C. D. Sislak, A. Mets, and S. Schouten. "Mesoaciditoga lauensis gen. nov., sp. nov., a moderate thermoacidophilic Thermotogales from a deep-sea hydrothermal vent." International journal of systematic and evolutionary microbiology (2013).