Halogranum salarium sp. nov., a halophilic archaeon isolated from sea salt

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Halogranum salarium sp. nov., a halophilic archaeon isolated from sea salt
Kwang Kyu Kim; Keun Chul Lee; Jung-Sook Lee
Bibliographic Citation
Systematic and Applied Microbiology, vol. 34, no. 8, pp. 576-580
Publication Year
Three halophilic archaea, strains B-1T, B-3 and B-4, were isolated from evaporitic salt crystals from Namhae, Korea. Cells of the strains were Gram-stain-negative, motile and pleomorphic, and colonies were red-pigmented. The three isolates had identical 16S rRNA gene sequences and formed a tight phylogenetic clade with Halogranum rubrum RO2-11T in the genus Halogranum, showing 99.5% sequence similarity. The next most closely related species were Halogranum amylolyticum and Halogranum gelatinilyticum (97.4 and 96.3% similarity to the respective type strains). The phylogeny based on the full-length RNA polymerase subunit B' gene (rpoB') was in agreement with the 16S rRNA gene sequence analysis, but allowed better discrimination. DNA-DNA hybridization between a representative strain (B-1T) and the type strains of Hgn. rubrum, Hgn. amylolyticum and Hgn. gelatinilyticum revealed less than 40% relatedness. Polar lipid analysis showed that the three isolates contained phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester and three glycolipids. Combined genotypic and phenotypic data supported the conclusion that strains B-1T, B-3 and B-4 represent a novel species of the genus Halogranum, for which the name Halogranum salarium sp. nov. is proposed. The type strain is B-1T (=KCTC 4066T=DSM 23171T).
Halogranum salarium sp. nov.Halophilic archaeaRpoB' gene
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Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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