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1 Korea Research Institute of Bioscience and Biotechnology (KRIBB), 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
2 Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
3 proBionic Corp., KRIBB, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
4 Department of Applied Microbiology, Yeungnam University, Kyeongsan-si, Kyeongbuk 712-749, Republic of Korea
Correspondence
Yong-Ha Park
peter{at}yumail.ac.kr
A Gram-negative, aerobic, halophilic bacterium, designated strain Iso 3T, was isolated from the East Sea in Korea. Strain Iso 3T was motile by means of polar flagella, occasionally formed rosette-like aggregates and contained 18 : 1
7c as the dominant cellular fatty acid. Strain Iso 3T grew at NaCl concentrations of 110 % and temperatures of 430 °C. The optimal growth temperature was 20 °C. Analysis of the 16S rRNA gene sequence revealed that this strain is affiliated with a subcluster of the Alphaproteobacteria. However, strain Iso 3T generated metabolic energy by sulfide oxidation. The 16S rRNA gene sequence similarity between strain Iso 3T and the type strain of the most closely related species, Sulfitobacter pontiacus, was 97.7 %. DNADNA relatedness between strain Iso 3T and Sulfitobacter pontiacus DSM 10014T was 24.1 %. On the basis of phenotypic properties and phylogenetic distinctiveness, strain Iso 3T is classified within a novel Sulfitobacter species, for which the name Sulfitobacter litoralis sp. nov. is proposed, with the type strain Iso 3T (=KCTC 12521T=DSM 17584T).
The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain Iso 3T is DQ097527.
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