Halocynthiibacter namhaensis gen. nov., sp nov., a novel alphaproteobacterium isolated from sea squirt Halocynthia roretzi

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Title
Halocynthiibacter namhaensis gen. nov., sp nov., a novel alphaproteobacterium isolated from sea squirt Halocynthia roretzi
Author(s)
Y O Kim; S Park; Hyang Mi Kim; Doo-Sang Park; B H Nam; D G Kim; J H Yoon
Bibliographic Citation
Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, vol. 105, no. 5, pp. 881-889
Publication Year
2014
Abstract
A Gram-negative, non-motile and rod-shaped bacterial strain, designated RA2-3T, was isolated from a sea squirt (Halocynthia roretzi) collected from the South Sea, Korea, and its taxonomic position was investigated by using a polyphasic approach. Strain RA2-3T was observed to grow optimally at 25°C, at pH 7.0-7.5 and in the presence of 2 % (w/v) NaCl. Strain RA2-3T exhibited the highest 16S rRNA gen. sequence similarity values to the type strains of Litoreibacter meonggei (95.7 %), Planktotalea frisia (95.6 %), Thalassobius gelatinovorus (95.5 %) and Pelagicola litoralis (95.4 %). A neighbour-joining phylogenetic tree based on 16S rRNA gen. sequences revealed that strain RA2-3T clustered with the type strains of Planktotalea frisia, Pelagicola litoralis, Pacificibacter maritimus and Roseovarius marinus. Strain RA2-3T was found to contain Q-10 as the predominant ubiquinone and C18:1 ω7c as the major fatty acid. The major polar lipids detected in strain RA2-3T were phosphatidylcholine, phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. The DNA G+C content of strain RA2-3T was 52.9 mol%. On the basis of the phylogenetic, chemotaxonomic and phenotypic properties, strain RA2-3T is considered to represent a new gen.s and species within the family Rhodobacteraceae, for which the name Halocynthiibacter namhaensis gen. nov., sp. nov. is proposed. The type strain of H. namhaensis is RA2-3T (=KCTC 32362T=NBRC 109999T).
Keyword
Halocynthiibacter namhaensis gen. nov., sp. novNovel genusNovel speciesSea squirt
ISSN
0003-6072
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s10482-014-0142-3
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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