1887

Abstract

An aerobic, motile, Gram-positive strain, DX3-12, was isolated from coastal sediment of the Eastern China Sea in Fujian Province, China, and was identified by means of polyphasic taxonomy. On the basis of 16S rRNA gene sequence similarity, strain DX3-12 was closely related to members of the genera and . 16S rRNA gene sequence similarities between strain DX3-12 and , , , and were 97·8, 97·8, 97·1, 97·5 and 96·4 %, respectively. Chemotaxonomic and physiological properties of strain DX3-12 supported its affiliation to the genus . Strain DX3-12 and exhibited common phenotypic properties such as the ability to reduce nitrate, but they could be distinguished from each other by physiological and biochemical tests, e.g. acid production from glucose, growth temperature and NaCl concentration requirements. DNA–DNA hybridization further distinguished strain DX3-12 from at the species level. Therefore, it is proposed that strain DX3-12 (=AS 1.3454=JCM 12466) represents a novel species, sp. nov. Based on 16S rRNA gene sequence similarities, signature nucleotides, cell morphology and physiological and biochemical properties, and have been transferred to the genus as comb. nov. (type strain DSM 14507=MTCC 3812) and comb. nov. (type strain NCIMB 13489=CIP 107718), respectively.

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2005-03-01
2019-10-13
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