RRC ID 27459
Author Liu BB, Tang SK, Zhang YG, Lu XH, Li L, Cheng J, Zhang YM, Zhang LL, Li WJ.
Title Halalkalicoccus paucihalophilus sp. nov., a halophilic archaeon from Lop Nur region in Xinjiang, northwest of China.
Journal Antonie Van Leeuwenhoek
Abstract Two extremely halophilic archaea, designated YIM 93701(T) and YIM 93664, were isolated from Lop Nur region in Xinjiang Province, northwest of China. The cells of the two strains were observed to be cocci, non-motile and Gram-negative. The organisms were determined to be aerobic and required at least 6 % NaCl for growth (optimum 20-25 % and maximum 35 %). Growth was found to occur in the ranges of 16-50 °C (optimum 37 °C) and pH 6.0-8.5 (optimum 6.5-7.5). Cells did not lyse in distilled water. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the two strains belongs to the genus Halalkalicoccus and possessed 99.3 and 99.5 % similarities with their closest phylogenetic relative Halalkalicoccus tibetensis JCM 11890(T). Major polar lipids of the two strains were determined to be phosphatidylglycerol(PG),phosphatidylglycerol phosphate methyl ester (PGP-Me), phosphatidylglycerol sulfate (PGS) and three unidentified glycolipids. The DNA G+C contents were determined to be 60.0-60.4 mol%. The DNA hybridization between the two strains was 92.0 %. In addition, the hybridizations of both strains to H. tibetensis were 49 and 52 %, respectively, and to Halalkalicoccus jeotali were 38 and 33 %, respectively. On the basis of physiological, biochemical tests and phylogenetic differentiations, strains YIM 93701(T) and YIM 93664 were classified as the same species which represent a novel species in the genus Halalkalicoccus, for which the name Halalkalicoccus paucihalophilus sp. nov. is proposed. The type strain is YIM 93701(T) (=JCM 17505(T) = CCTCC 2012803(T)).
Volume 103(5)
Pages 1007-14
Published 2013-5-1
DOI 10.1007/s10482-013-9880-x
PMID 23338603
MeSH Aerobiosis Base Composition China Cluster Analysis DNA, Archaeal / chemistry DNA, Archaeal / genetics DNA, Ribosomal / chemistry DNA, Ribosomal / genetics Halobacteriaceae / classification* Halobacteriaceae / genetics Halobacteriaceae / isolation & purification* Halobacteriaceae / physiology Hydrogen-Ion Concentration Molecular Sequence Data Nucleic Acid Hybridization Phospholipids / analysis Phylogeny RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Sodium Chloride / metabolism Temperature
IF 2.674
Times Cited 13
WOS Category MICROBIOLOGY
Resource
General Microbes JCM 11890 JCM 13897 JCM 14584 JCM 15771 JCM 17505