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Abstract

An aerobic, Mn(II)-oxidizing, Gram-negative bacterium, strain 8047, was isolated from a deep-sea hydrothermal vent plume in the south-west Indian Ocean. The strain was rod-shaped and motile with a terminal flagellum, and formed yellowish colonies. It produced catalase and oxidase, hydrolysed gelatin and reduced nitrate. 16S rRNA gene sequence analysis showed that strain 8047 belonged to the order of the class , and was phylogenetically most closely related to the genus , sharing 94.4 % sequence identity with the type strain of the type species. The taxonomic affiliation of strain 8047 was supported by phylogenetic analysis of four additional housekeeping genes, , , and . The predominant respiratory lipoquinone of strain 8047 was Q-10, the major fatty acid was Cω7 and the DNA GC content was 61.7 mol%. On the basis of the phenotypic and genotypic characteristics determined in this study, strain 8047 represents a novel species within the genus , for which the name sp. nov. is proposed. The type strain is strain 8047 ( = CGMCC1.10972 = JCM 18890).

Funding
This study was supported by the:
  • China Ocean Mineral Resources R & D Association (Award DY125-15-R-02)
  • National Basic Research Program of China (Award 2011CB808800)
  • Knowledge Innovation Program of the Chinese Academy of Sciences (Award KSCX2-EW-J-6)
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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2014-08-01
2021-10-23
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