RRC ID 5225
著者 Gutiérrez MC, Castillo AM, Pagaling E, Heaphy S, Kamekura M, Xue Y, Ma Y, Cowan DA, Jones BE, Grant WD, Ventosa A.
タイトル Halorubrum kocurii sp. nov., an archaeon isolated from a saline lake.
ジャーナル Int J Syst Evol Microbiol
Abstract A Gram-negative, non-motile, neutrophilic, rod-shaped, extremely halophilic archaeon, designated strain BG-1(T), was isolated from a salt lake, Lake Bagaejinnor, in Inner Mongolia, China. Strain BG-1(T) was able to grow at 25-55 degrees C, required at least 2.5 M NaCl for growth (with an optimum at 3.4 M NaCl) and grew at pH 6.0-9.0 (with an optimum at pH 7.5). Hypotonic treatment with less than 2.0 M NaCl caused cell lysis. Phylogenetic analysis of the almost-complete 16S rRNA gene sequence positioned the isolate within the genus Halorubrum in the family Halobacteriaceae. Strain BG-1(T) was most closely related to Halorubrum aidingense 31-hong(T) (98.8% sequence similarity), Halorubrum saccharovorum NCIMB 2081(T) (98.6%), Halorubrum lacusprofundi ACAM 34(T) (98.6%) and Halorubrum lipolyticum 9-3(T) (98.4%). However, values for DNA-DNA hybridization between strain BG-1(T) and the most closely related members of the genus Halorubrum were below 40%. Analysis of the polar lipids of strain BG-1(T) revealed the presence of mannosyl-2-sulfate-(1-4)-glycosyl-archaeol, the main glycolipid found in neutrophilic species of the genus Halorubrum. The G+C content of the genomic DNA was 69.4 mol% (T(m)). Comparison of the phenotypic characteristics of the strain with those of Halorubrum species supported the conclusion that BG-1(T) represents a novel species within this genus, for which the name Halorubrum kocurii sp. nov. is proposed. The type strain is BG-1(T) (=CECT 7322(T) =CGMCC 1.7018(T) =JCM 14978(T)).
巻・号 58(Pt 9)
ページ 2031-5
公開日 2008-9-1
DOI 10.1099/ijs.0.65840-0
PII 58/9/2031
PMID 18768599
MeSH Base Composition Carbohydrate Metabolism China DNA, Archaeal / chemistry DNA, Archaeal / genetics DNA, Ribosomal / chemistry DNA, Ribosomal / genetics Genes, rRNA Halobacteriaceae / classification* Halobacteriaceae / genetics Halobacteriaceae / isolation & purification* Halobacteriaceae / metabolism Hydrogen-Ion Concentration Hypotonic Solutions / toxicity Lipids / analysis Locomotion Molecular Sequence Data Nucleic Acid Hybridization Phylogeny RNA, Archaeal / genetics RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Sequence Homology, Nucleic Acid Sodium Chloride / metabolism Temperature Water Microbiology*
IF 2.415
引用数 19
WOS 分野 MICROBIOLOGY
リソース情報
一般微生物 JCM13559 JCM13560 JCM14978