Mesoaciditoga lauensis gen. nov., sp. nov., a moderately thermoacidophilic member of the order Thermotogales from a deep-sea hydrothermal vent
Reysenbach, A.-L.; Liu, Y.T.; Lindgren, A.N.; Wagner, I.D.; Sislak, C.D.; Mets, A.; Schouten, S. (2013). Mesoaciditoga lauensis gen. nov., sp. nov., a moderately thermoacidophilic member of the order Thermotogales from a deep-sea hydrothermal vent. Int. J. Syst. Evol. Microbiol. 63: 4724-4729. https://dx.doi.org/10.1099/ijs.0.050518-0
In: International Journal of Systematic and Evolutionary Microbiology. Society for General Microbiology: Reading. ISSN 1466-5026; e-ISSN 1466-5034, more
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| Authors | | Top |
- Reysenbach, A.-L.
- Liu, Y.T.
- Lindgren, A.N.
- Wagner, I.D.
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- Sislak, C.D.
- Mets, A., more
- Schouten, S., more
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| 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 of the south-western Pacific Ocean. Cells were short motile rods (about 0.4×0.8 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) and at pH 4.1–6.0 (optimum pH 5.5–5.7) and grew 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 sequence placed the new isolate as a deeply diverging lineage within the order Thermotogales. Based on the physiological, morphological and phylogenetic data, the isolate represents a novel species of a new genus with the proposed name Mesoaciditoga lauensis gen. nov., sp. nov. The type strain of Mesoaciditoga lauensis is cd-1655RT (?=?DSM 25116T?=?OCM 1212T). |
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