Kaistella koreensis gen. nov., sp. nov., a novel member of the Chryseobacterium–Bergeyella–Riemerella branch

Author:

Kim Myung Kyum1,Im Wan-Taek1,Shin Yong Kook2,Lim Ju Hyoung1,Kim Sung-Hye1,Lee Byung Chul3,Park Mi-Yeoun3,Lee Ki Young4,Lee Sung-Taik1

Affiliation:

1. Environmental and Molecular Microbiology Laboratory, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 373-1 Kuseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea

2. Division of Genome Resources Bank and Reservation, National Genome Research Institute, Korean National Institute of Health, Seoul 122-701, Republic of Korea

3. Laboratory of Rickettsial and Zoonotic Disease, Department of Microbiology, Korean National Institute of Health, Seoul 122-701, Republic of Korea

4. Department of Food and Biotechnology, Hoseo University, Asan 336-795, Republic of Korea

Abstract

Gram-negative, non-spore-forming, rod-shaped, yellow-pigmented bacteria isolated from a freshwater stream in Korea were investigated to determine their taxonomic position. Complete 16S rRNA gene sequence analysis indicated that the organisms should be placed in the ChryseobacteriumBergeyellaRiemerella branch in the family Flavobacteriaceae. Phylogenetically, the strains were most closely related to Chryseobacterium balustinum ATCC 33487T and Chryseobacterium scophthalmum LMG 13028T (94·3 and 94·1 % 16S rRNA gene sequence similarity, respectively) and they clustered on a separate well-supported branch. The strains contained menaquinone MK-6 as the predominant respiratory quinone and showed higher G+C contents (41·7 mol%) than other species in the ChryseobacteriumBergeyellaRiemerella branch and i-C15 : 0 as a major fatty acid (47–52 %). The phylogenetic distances from any species with validly published names and their phenotypic properties confirmed that the strains constitute a separate species in a new genus, for which the name Kaistella koreensis gen. nov., sp. nov. is proposed (type strain Chj707T=KCTC 12107T=IAM 15050T).

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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