Title Deinococcus rubellus sp. nov., bacteria isolated from the muscle of antarctic fish
Author Seok-Gwan Choi1, Seon Hwa Jeon2, Jae-Bong Lee1, Eun Sun Joo2, Sangyong Lim3, Hee-Young Jung4,5, and Myung Kyum Kim2*
Address 1Distant-water Fisheries Resources Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea, 2Department of Bio and Environmental Technology, College of Natural Science, Seoul Women’s University, Seoul 01797, Republic of Korea, 3Radiation Research Division for Biotechnology, Korea Atomic Energy Research Institute, Jeongeup 34057, Republic of Korea, 4College of Agricultural and Life Sciences, Kyungpook National University, Daegu 41566, Republic of Korea, 5Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
Bibliography Journal of Microbiology, 54(12),796-801, 2016,
DOI 10.1007/s12275-016-6390-3
Key Words Deinococcaceae, Deinococcus, gamma ray, UV
Abstract Two new bacterial strains designated as Ant6T and Ant18 were isolated from the muscle of a fish which had been caught in the Antarctic Ocean. Both strains are Gram-stain-positive, catalase positive, oxidase negative, aerobic, and coccoid bacteria. Phylogenetic analysis based on the 16S rRNA gene sequences of strains Ant6T and Ant18 revealed that the strains Ant6T and Ant18 belong to the genus Deinococcus in the family Deinococcaceae in the class Deinococci. The highest degrees of sequence similarities of strains Ant6T and Ant18 were found with Deinococcus alpinitundrae LMG 24283T by 96.4% and 96.8%, respectively. Strain Ant6T exhibited a high level of DNA- DNA hybridization values with strain Ant18 (82 ± 0.6%). Chemotaxonomic data revealed that the predominant fatty acids were C17􍾙:􍾙0 cyclo, 16:0, and feature 3 (C16:1 ω6c/ω7c) for both strains. A complex polar lipid profile consisted of major amounts of unknown phosphoglycolipids (PGL) and unknown aminophospholipid (APL). Based on the phylogenetic, phenotypic, and chemotaxonomic data, strains Ant6T (=KEMB 9004-169T =JCM 31434T) and Ant18 (=KEMB 9004- 170) should be classified as a new species, for which the name Deinococcus rubellus sp. nov. is proposed.