Arthrobacter antarcticus sp. nov., isolated from an Antarctic marine sediment
A bacterial strain, SPC26 T , 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-C 15:0 (54.92%), iso-C 15:0 (11.47%...
| Main Authors: | , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
Society for General Microbiology
2010
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| Subjects: | |
| Online Access: | http://repository.ias.ac.in/64259/ http://ijs.sgmjournals.org/content/60/10/2263.abstract?sid=fa63acb4-944b-463b-92eb-12ab33347200 |
| Summary: | A bacterial strain, SPC26 T , 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-C 15:0 (54.92%), iso-C 15:0 (11.47%), anteiso-C 17:0 (6.48%) and anteiso-C 15:1 (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 SPC26 T were identified as Arthrobacter gangotriensis Lz1y T (98.8%), A. sulfureus DSM 20167 T (98.6%), A. psychrophenolicus DSM 15454 T (97.9%) and A. kerguelensis KGN15 T (97.5). With these strains, strain SPC26 T 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 SPC26 T represents a novel species of Arthrobacter, for which the name Arthrobacter antarcticus sp. nov. is proposed, with strain SPC26 T (=LMG 24542 T =NCCB 100228 T ) as the type strain. |
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