Brachybacterium aquaticum sp. nov., a novel actinobacterium isolated from sea water.

Kaur, Gurwinder and Kumar, Narender and Mual, Poonam and Kumar, Anand and Kumar, Rajendran Mathan and Mayilraj, Shanmugam (2016) Brachybacterium aquaticum sp. nov., a novel actinobacterium isolated from sea water. International journal of systematic and evolutionary microbiology, 66. pp. 4705-4710. ISSN 1466-5034

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A pale-yellowish bacterium, strain KWS-1T, was isolated from sea water during a study of the bacterial diversity of marine environment of Kanyakumari coastal region of Bay of Bengal, India and was studied by using a polyphasic taxonomic approach. The strain KWS-1T had morphological and chemotaxonomic properties (cell-wall diamino acid, menaquinone and fatty acid profile) consistent with its classification in the genus Brachybacterium. Phylogenetic analysis of the 16S rRNA gene sequence showed that strain KWS-1T was closely related to Brachybacterium paraconglomeratum JCM 17781T, followed by Brachybacterium saurashtrense DSM 23186T, Brachybacterium gingengisoli JCM 19356T, Brachybacterium faecium JCM 11609T and Brachybacterium conglomeratum JCM 11608T (98.45, 98.24, 98.12, 98.10 and 98.10% sequence similarity, respectively), whereas the sequence similarity values with respect to the other Brachybacterium species with validly published names were between 97.4 and 94.2%. However, the DNA-DNA hybridization of strain KWS-1T and other five closely related species were less than the thresh hold value. The major lipids are diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglycerol (PG) and phosphatidylserine (PS) and quinone is MK-7. The DNA G+C content of the strain is 71.8 mol%. The above data in combination with the phenotypic distinctiveness of KWS-1T with other reference strains clearly indicate that the strain represents a novel species, for which the name Brachybacterium aquaticum sp. nov. is proposed. The type strain is KWS-1T (= MTCC 11836T = DSM 28796T = JCM 30059T).

Item Type: Article
Additional Information: Copyright of tis article belongs to SGM.
Uncontrolled Keywords: Brachybacterium aquaticum; sea water
Subjects: Q Science > QR Microbiology
Depositing User: Dr. K.P.S.Sengar
Date Deposited: 29 Sep 2016 09:42
Last Modified: 31 Oct 2018 06:09

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