RRC ID 21484
著者 Mou YZ, Qiu XX, Zhao ML, Cui HL, Oh D, Dyall-Smith ML.
タイトル Halohasta litorea gen. nov. sp. nov., and Halohasta litchfieldiae sp. nov., isolated from the Daliang aquaculture farm, China and from Deep Lake, Antarctica, respectively.
ジャーナル Extremophiles
Abstract Two halophilic archaeal strains, R30(T) and tADL(T), were isolated from an aquaculture farm in Dailing, China, and from Deep Lake, Antarctica, respectively. Both have rod-shaped cells that lyse in distilled water, stain Gram-negative and form red-pigmented colonies. They are neutrophilic, require >120 g/l NaCl and 48-67 g/l MgCl(2) for growth but differ in their optimum growth temperatures (30 °C, tADL(T) vs. 40 °C, R30(T)). The major polar lipids were typical for members of the Archaea but also included a major glycolipid chromatographically identical to sulfated mannosyl glucosyl diether (S-DGD-1). The 16S rRNA gene sequences of the two strains are 97.4 % identical, show most similarity to genes of the family Halobacteriaceae, and cluster together as a distinct clade in phylogenetic tree reconstructions. The rpoB' gene similarity between strains R30(T) and tADL(T) is 92.9 % and less to other halobacteria. Their DNA G + C contents are 62.4-62.9 mol % but DNA-DNA hybridization gives a relatedness of only 44 %. Based on phenotypic, chemotaxonomic and phylogenetic properties, we describe two new species of a novel genus, represented by strain R30(T) (= CGMCC 1.10593(T) = JCM 17270(T)) and strain tADL(T) (= JCM 15066(T) = DSMZ 22187(T)) for which we propose the names Halohasta litorea gen. nov., sp. nov. and Halohasta litchfieldiae sp. nov., respectively.
巻・号 16(6)
ページ 895-901
公開日 2012-11-1
DOI 10.1007/s00792-012-0485-5
PMID 23052830
MeSH Antarctic Regions Archaeal Proteins / genetics China DNA, Archaeal / chemistry Halobacteriaceae / classification* Halobacteriaceae / cytology Halobacteriaceae / isolation & purification* Phylogeny RNA, Ribosomal, 16S / genetics
IF 2.462
引用数 26
WOS 分野 MICROBIOLOGY BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
一般微生物 JCM 9738 JCM 15066 JCM 17270