title: Spirosoma fluminis sp. nov., a Gamma-Radiation Resistant Bacterium Isolated from Sediment of the Han River in South Korea.
abstract: A Gram-negative, long rod-shaped, and yellowish bacterium, designated as strain 15J17T(T), was isolated from sediment of the Han River in South Korea after exposure to 3 kGy of gamma radiation. The strain was catalase- and oxidase-positive and showed resistance to gamma radiation-D10 value (i.e., the dose required to reduce the bacterial population by 10-fold) of >4 kGy. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that the strain belonged to the genus Spirosoma and showed moderate degrees of sequence similarity with related species (90.6-93.5 %). Chemotaxonomic data revealed that the strain contained summed feature 3 (C16:1 ω7c/C16:1 ω6c), C16:1 ω5c, C16:0, C18:0, and C15:0 iso as the major fatty acids; phosphatidylethanolamine, an unidentified aminophospholipid, and an unidentified polar lipid as the major polar lipids; and menaquinone-7 (MK-7) as the major quinone. The genomic DNA G+C content of the new strain was 48.3 mol%. Based on these data, type strain 15J17T(T) (=KCTC 52198(T) = JCM 31409(T)) should be classified as representing a new species, for which we propose the name Spirosoma fluminis sp. nov.
authors: School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
authors: Jae-Jin
authors: JJ
authors: Lee
authors: School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
authors: Yeon Hee
authors: YH
authors: Lee
authors: School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
authors: Su Jin
authors: SJ
authors: Park
authors: Radiation Research Division for Biotechnology, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.
authors: Sangyong
authors: S
authors: Lim
authors: Radiation Research Division for Biotechnology, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.
authors: Sun-Wook
authors: SW
authors: Jeong
authors: School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
authors: Seung-Yeol
authors: SY
authors: Lee
authors: School of Food Science and Biotechnology/Food and Bio-Industry Research Institute, Kyungpook National University, Daegu, 41566, Republic of Korea.
authors: Young-Je
authors: YJ
authors: Cho
authors: Department of Bio and Environmental Technology, College of Natural Science, Seoul Women's University, Seoul, 01797, Republic of Korea.
authors: Myung Kyum
authors: MK
authors: Kim
authors: School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea. heeyoung@knu.ac.kr.|Institute of Plant Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea. heeyoung@knu.ac.kr.
authors: Hee-Young
authors: HY
authors: Jung
mesh_terms: D001482:Base Composition; D041964:Cytophagaceae / Q000145:classification / Q000235:genetics / Q000302:isolation & purification* / Q000528:radiation effects*; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry / Q000378:metabolism; D005720:Gamma Rays; D019015:Geologic Sediments / Q000382:microbiology*; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D056910:Republic of Korea; D045483:Rivers / Q000382:microbiology*
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S