RRC ID 34303
著者 Zhong ZP, Liu Y, Liu HC, Wang F, Zhou YG, Liu ZP.
タイトル Roseibium aquae sp. nov., isolated from a saline lake.
ジャーナル Int J Syst Evol Microbiol
Abstract A Gram-staining-negative bacterium, strain DSG-S4-2(T), was isolated from Dasugan Lake, a saline lake (salinity 3.1%, w/v) in Qaidam basin, Qinghai, China and its taxonomic position was determined by using a polyphasic approach. Cells of strain DSG-S4-2(T) were non-spore-forming rods, 0.5-0.8 µm wide and 1.2-3.8 µm long and motile by means of a single polar flagellum. Strain DSG-S4-2(T) was strictly heterotrophic and aerobic, catalase-positive and oxidase-negative. PufLM and coxL genes were present, bacteriochlorophyll a (BChl a) and a carotenoid pigment were produced. Growth was observed in the presence of 0-8.0% (w/v) NaCl (optimum, 1.0-2.0%), at 20-40 °C (optimum, 35 °C) and pH 6.5-10.5 (optimum, pH 7.5-8.0). Strain DSG-S4-2(T) contained Q-10 as the sole respiratory quinone. The polar lipids contained two aminolipids, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, sulphoquinovosyldiacylglyceride, phosphatidylcholine and some unknown phospholipids, like the other members of the genus Roseibium. The predominant fatty acid (>70%) was summed feature 8 (C(18 : 1)ω7c and/or C(18 : 1)ω6c). The DNA G+C content was 61.4 mol% (determined from melting temperature). Phylogenetic trees (neighbour-joining, maximum-likelihood and maximum-parsimony) based on 16S rRNA gene sequences showed that strain DSG-S4-2(T) was associated with the members of the genus Roseibium, with highest 16S rRNA gene sequence similarity to Roseibium denhamense OCh 254(T) (96.3%) and Roseibium hamelinense OCh 368(T) (96.3%). Based on the data presented above, it is concluded that strain DSG-S4-2(T) represents a novel species of the genus Roseibium, for which the name Roseibium aquae sp. nov. is proposed. The type strain is DSG-S4-2(T) ( = CGMCC 1.12426(T) = JCM 19310(T)).
巻・号 64(Pt 8)
ページ 2812-2818
公開日 2014-8-1
DOI 10.1099/ijs.0.065508-0
PMID 24867169
MeSH Bacterial Typing Techniques Bacteriochlorophyll A / chemistry Base Composition China DNA, Bacterial / genetics Fatty Acids / chemistry Genes, Bacterial Lakes / microbiology* Molecular Sequence Data Phospholipids / chemistry Phylogeny* RNA, Ribosomal, 16S / genetics Rhodobacteraceae / classification* Rhodobacteraceae / genetics Rhodobacteraceae / isolation & purification Salinity* Sequence Analysis, DNA Ubiquinone / chemistry
IF 2.415
引用数 22
WOS 分野 MICROBIOLOGY
リソース情報
一般微生物 JCM 10543 JCM 10544 JCM 19310