Roseivivax jejudonensis sp. nov., isolated from the junction between the ocean and a freshwater spring at Jeju island, South Korea

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Title
Roseivivax jejudonensis sp. nov., isolated from the junction between the ocean and a freshwater spring at Jeju island, South Korea
Author(s)
Y T Jung; Jung-Sook Lee; J H Yoon
Bibliographic Citation
Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, vol. 106, no. 5, pp. 959-967
Publication Year
2014
Abstract
A Gram-stain negative, coccoid- or oval-shaped and non-gliding bacterial strain, designated CDM-17T, was isolated from the zone where the ocean and a freshwater sp.ing meet at Jeju island, South Korea, and subjected to a polyphasic taxonomic study. Strain CDM-17T was observed to form smooth, circular, glistening, slightly convex, light yellowish pink colonies on marine agar, and was found to grow optimally at pH 7.0-8.0, at 30 °C and in the presence of 2-3 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain CDM-17T fell within the clade comprising the Roseivivax sp.cies, clustering with the type strain of Roseivivax sediminis with which it exhibited 98.3 % sequence similarity value. Sequence similarities to the type strains of the other recognized Roseivivax sp.cies were 94.7-96.8 %. Strain CDM-17T was found to contain Q-10 as the predominant ubiquinone and summed feature 8 (C18:1ω6c and/or C18:1ω7c) as the major fatty acid. The major polar lipids were identified as phosphatidylcholine, phosphatidylglycerol, an unidentified aminolipid, an unidentified glycolipid and an unidentified lipid. The DNA G+C content of strain CDM-17T was determined to be 66.2 mol% and its mean DNA-DNA relatedness value with Rsv. sediminis KCTC 23444T was 17.5 ± 2.7 %. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain CDM-17T is distinguishable from recognized Roseivivax sp.cies. On the basis of the data presented, strain CDM-17T is proposed to represent a nov.l sp.cies of the genus Roseivivax, for which the name Roseivivax jejudonensis sp. nov. is proposed. The type strain is CDM-17T (=KCTC 42110T = CECT 8625T).
Keyword
Freshwater springOceanProteobacteriaRoseivivax jejudonensis sp. Nov
ISSN
0003-6072
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s10482-014-0265-6
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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