RRC ID 34190
Author Dong L, Ming H, Yin YR, Duan YY, Zhou EM, Nie GX, Feng HG, Liu L, Li WJ.
Title Roseomonas alkaliterrae sp. nov., isolated from an alkali geothermal soil sample in Tengchong, Yunnan, South-West China.
Journal Antonie Van Leeuwenhoek
Abstract An alkalitolerant, thermotolerant and Gram-stain negative bacterium, designated strain YIM 78007(T), was isolated from an alkaline geothermal soil sample from Hehua hot spring, Tengchong, Yunnan province, south-west China. Cells of strain YIM 78007(T) were observed to be aerobic and short rod-shaped. The colonies were observed to be orange-red, convex and circular. 16S rRNA gene sequence-based phylogenetic analysis showed that strain YIM 78007(T) clustered with members of the genus Roseomonas (with similarities from 97.2 to 92.2 %). Optimal growth of strain YIM 78007 occurs at 40-50 °C and pH 8.0-10.0. The predominant ubiquinone was identified as Q-10 and the major fatty acids were identified as C18:1 ω7c and C16:0. The polar lipids were identified as diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, two unidentified aminolipids and one unknown phospholipid. The G + C content of the genomic DNA was determined to be 63 mol %. The levels of DNA-DNA hybridization relatedness between strain YIM 78007(T) and its closet neighbours (Roseomonas lacus JCM 13283(T) and Roseomonas terrae JCM 14592(T)) were well below the threshold required for the proposal of a novel species. The results of physiological and biochemical characteristics, the phylogenetic analysis, as well as low DNA-DNA hybridization values, allowed the phenotypic and genotypic differentiation of strain YIM 78007(T) from its closest phylogenetic neighbours. Therefore, strain YIM 78007(T) is considered to represent a novel species of the genus Roseomonas, for which the name Roseomonas alkaliterrae sp. nov. is proposed. The type strain is YIM 78007(T) (=BCRC 80644(T) = JCM 19656(T)).
Volume 105(5)
Pages 899-905
Published 2014-5-1
DOI 10.1007/s10482-014-0144-1
PMID 24590559
MeSH Bacterial Typing Techniques Base Composition China Cluster Analysis DNA, Bacterial / chemistry DNA, Bacterial / genetics DNA, Ribosomal / chemistry DNA, Ribosomal / genetics Fatty Acids / analysis Hot Springs Methylobacteriaceae / classification* Methylobacteriaceae / genetics Methylobacteriaceae / isolation & purification* Methylobacteriaceae / physiology Molecular Sequence Data Nucleic Acid Hybridization Phospholipids / analysis Phylogeny Quinones / analysis RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Soil Microbiology*
IF 2.674
Times Cited 15
WOS Category MICROBIOLOGY
Resource
General Microbes JCM 13283 JCM 14592 JCM 19656