Characterization of Facultative Sulfur-oxidizing Marinobacter sp. BR13 Isolated from Marine Sediment of Yellow Sea, Korea

Choi, Bo-Ram; Pham, Vinh Hoa; Park, Soo-Je; Kim, So-Jeong; Roh, Dong-Hyun; Rhee, Sung-Keun

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자료유형: 학술저널

저자정보: Choi, Bo-Ram (Department of Microbiology, Chungbuk National University) Pham, Vinh Hoa (Department of Microbiology, Chungbuk National University) Park, Soo-Je (Department of Microbiology, Chungbuk National University) Kim, So-Jeong (Department of Microbiology, Chungbuk National University) Roh, Dong-Hyun (Department of Microbiology, Chungbuk National University) Rhee, Sung-Keun (Department of Microbiology, Chungbuk National University)

저널정보: 한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제52권 제4호

발행연도: 2009.1

수록면: 309 - 314 (6page)

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Marine sediment was collected from the Yellow Sea, Korea, and enriched using 1 mM thiosulfate under aerobic conditions. After 2 weeks, a facultative sulfur-oxidizing strain, BR13, was isolated. Phylogenetic analysis based on the 16S rRNA gene sequence showed that this strain belonged to the genus Marinobacter in the gamma-proteobacteria and was most closely related to Marinobacter pelagius $H225^T$ (99.5% 16S rRNA gene sequence similarity) and Marinobacter koreensis DD-$M3^T$(97.7% 16S rRNA gene sequence similarity). The isolate was a sulfur-oxidizer, Gram-negative, aerobic, and slightly halophilic bacterium and grew in 0.5-9% NaCl at 7-$37^{\circ}C$. Strain BR13 shared some physiological and biochemical properties with Marinobacter pelagius $H225^T$ and Marinobacter koreensis DD-$M3^T$. The G+C content of the genomic DNA of strain BR13 was 58.4 mol%. Strain BR13 possessed $C_{16:0}$, summed feature 4 ($C_{16:1}$ ${\omega}7c$ and/or $C_{15:1}$iso 2OH), $C_{16:0}N$ alcohol, and $C_{18:1}$ ${\omega}9c$ as the major cellular fatty acids. Our results showed that strain BR13 (=KCTC 22253 =JCM 15135) is a novel facultative sulfur-oxidizing strain in the genus of Marinobacter.

#marine sediment #Marinobacter sp #sulfur oxidizer

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