Published In

International Journal Of Systematic And Evolutionary Microbiology

Document Type

Post-Print

Publication Date

8-2013

Subjects

Helical Rods classification, Hydrothermal Vents -- microbiology, Phylogeny, Seawater microbiology

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.

The version of record can be found at http://ijs.sgmjournals.org, and is freely available to view without a subscription 24 months after publication.

DOI

10.1099/ijs.0.050518-0

Persistent Identifier

http://archives.pdx.edu/ds/psu/10810

Included in

Microbiology Commons

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