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Int J Syst Evol Microbiol. 2016 Mar;66(3):1561-1566. doi: 10.1099/ijsem.0.000918. Epub 2016 Jan 26.

Marinobacterium profundum sp. nov., a marine bacterium from deep-sea sediment.

Author information

1
1​ Division of Polar Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.
2
2​ Division of Climate Change, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea.

Abstract

A Gram-stain-negative, rod-shaped and motile strain, designated PAMC 27536T, was isolated from deep-sea sediment in the East Sea, Korea. Analysis of the 16S rRNA gene sequence of the strain showed an affiliation with the genus Marinobacterium. Phylogenetic analyses revealed that strain PAMC 27536T was related most closely to Marinobacterium rhizophilum CL-YJ9T with a 16S rRNA gene sequence similarity of 98.5 % and to other members of the genus Marinobacterium (94.0-91.7 %). Genomic relatedness analyses between strain PAMC 27536T and M. rhizophilum KCCM 42386T gave an average nucleotide identity of 85.6 % and an estimated DNA-DNA hybridization of 24.6 % using the genome-to-genome distance calculator, indicating that they represent genomically distinct species. Cells of strain PAMC 27536T grew optimally at 25-30 °C and pH 7.0-7.5 in the presence of 3 % (w/v) sea salts. The major cellular fatty acids were C16 : 1ω6c and/or C16 : 1ω7c, C18 : 1ω6c and/or C18 : 1ω7c, and C16 : 0. The major isoprenoid quinone was Q-8. The genomic DNA G+C content was 56.1-57.2 mol%. Based on the phylogenetic, chemotaxonomic, genomic and phenotypic data presented, a novel species with the name Marinobacterium profundum sp. nov. is proposed, with PAMC 27536T ( = KCCM 43095T = JCM 30410T) as the type strain.

PMID:
26813672
DOI:
10.1099/ijsem.0.000918

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