Arthrobacter antarcticus sp. nov., isolated from an Antarctic marine sediment

Pindi, Pavan Kumar ; Manorama, Ruth ; Begum, Zareena ; Shivaji, S. (2010) Arthrobacter antarcticus sp. nov., isolated from an Antarctic marine sediment International Journal of Systematic and Evolutionary Microbiology, 60 (10). pp. 2263-2266. ISSN 1466-5026

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Official URL: http://ijs.sgmjournals.org/content/60/10/2263.abst...

Related URL: http://dx.doi.org/10.1099/ijs.0.012989-0

Abstract

A bacterial strain, SPC26T, was isolated from a sediment sample of the Southern Ocean off Antarctica. The strain was Gram-staining- and catalase-positive and contained lysine and alanine in the cell-wall peptidoglycan. The major cellular fatty acids were anteiso-C15:0 (54.92%), iso-C15:0 (11.47%), anteiso-C17:0 (6.48%) and anteiso-C15:1 (6.38%) and the major menaquinones were MK-8, MK-9 and MK-10. The major polar lipids were phosphatidylethanolamine and diphosphatidylglycerol. The G+C content was 68±0.5 mol%. Based on 16S rRNA gene sequence similarities, the nearest phylogenetic neighbours of strain SPC26T were identified as Arthrobacter gangotriensis Lz1yT (98.8%), A. sulfureus DSM 20167T (98.6%), A. psychrophenolicus DSM 15454T (97.9%) and A. kerguelensis KGN15T (97.5). With these strains, strain SPC26T exhibited DNA-DNA relatedness values of 36, 21, 12 and 10%, respectively. Therefore, on the basis of 16S rRNA gene sequence comparisons, phylogenetic analysis, phenotypic characteristics and DNA-DNA relatedness, it is proposed that strain SPC26T represents a novel species of Arthrobacter, for which the name Arthrobacter antarcticus sp. nov. is proposed, with strain SPC26T (=LMG 24542T =NCCB 100228T) as the type strain.

Item Type:Article
Source:Copyright of this article belongs to Society for General Microbiology.
ID Code:64259
Deposited On:07 Oct 2011 08:52
Last Modified:07 Oct 2011 09:27

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