1887

Abstract

A novel extremely halophilic strain, isolated from Aibi salt lake, Xin-Jiang, China, was subjected to polyphasic taxonomic characterization. This strain, designated AB14, is neutrophilic, motile and requires at least 10 % (w/v) NaCl for growth. Strain AB14 grows at 24–58 °C, with optimal growth at 42–45 °C. Mg is not required, but growth is observed in MgCl concentrations as high as 1·0 M. Strain AB14 possesses the diphytanyl (CC) and phytanyl-sesterterpanyl diether (CC) derivatives of phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester and mannose-2,6 disulfate 1→2 glucose-glycerol diether. The genomic DNA G+C content is 66·6 mol%. The 16S rRNA gene sequence similarity values of strain AB14 with its nearest phylogenetic neighbours ( and ) are 98·6 and 96·0 %, respectively. DNA–DNA hybridization revealed 54 % relatedness between strain AB14 and JCM 11050 and 21 % between strain AB14 and JCM 9101. It is therefore proposed that strain AB14 represents a novel species, for which the name sp. nov. is proposed. The type strain is AB14 (=AS 1.3730=JCM 12889).

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2005-11-01
2021-04-18
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