RRC ID 48395
著者 Corral P, de la Haba RR, Sánchez-Porro C, Ali Amoozegar M, Thane Papke R, Ventosa A.
タイトル Halorubrum halodurans sp. nov., an extremely halophilic archaeon isolated from a hypersaline lake.
ジャーナル Int J Syst Evol Microbiol
Abstract Two extremely halophilic archaea, strains Cb34T and C170, belonging to the genus Halorubrum, were isolated from the brine of the hypersaline lake Aran-Bidgol in Iran. Cells of the two strains were motile, pleomorphic rods, stained Gram-variable and produced red-pigmented colonies. Strains Cb34T and C170 required 25 % (w/v) salts, pH 7.0 and 37 °C for optimal growth under aerobic conditions; 0.3 M Mg2+ was required. Cells of both isolates were lysed in distilled water and hypotonic treatment with < 10 % NaCl provoked cell lysis. Phylogenetic analysis based on 16S rRNA gene sequence similarities showed that these two strains were closely related to Halorubrum cibi B31T (98.8 %) and other members of the genus Halorubrum. In addition, studies based on the rpoB' gene revealed that strains Cb34T and C170 are placed among the species of Halorubrum and are closely related to Halorubrum cibi B31T, with rpoB' gene sequence similarity less than or equal to 95.7 %. The polar lipid patterns of both strains consisted of phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester, phosphatidylglycerol sulfate and sulfated mannosyl glucosyl diether. The DNA G+C content was 62.1-62.4 mol%. DNA-DNA hybridization studies confirmed that strains Cb34T and C170 constitute a distinct species. Data obtained in this study show that the two strains represent a novel species, for which the name Halorubrum halodurans sp. nov. is proposed. The type strain is Cb34T ( = CECT 8745T = IBRC-M 10233T).
巻・号 66(1)
ページ 435-444
公開日 2016-1-1
DOI 10.1099/ijsem.0.000738
PMID 26537912
MeSH Base Composition DNA, Archaeal / genetics Halorubrum / classification* Halorubrum / genetics Halorubrum / isolation & purification Iran Lakes / microbiology* Molecular Sequence Data Nucleic Acid Hybridization Phospholipids / chemistry Phylogeny* RNA, Ribosomal, 16S / genetics Saline Waters* Sequence Analysis, DNA
IF 2.415
引用数 6
WOS 分野 MICROBIOLOGY
リソース情報
一般微生物 JCM 15757 JCM 12358 JCM 11889 JCM 13559 JCM 8865