1887

Abstract

An extremely halophilic archaeon belonging to the order was isolated from Fuente de Piedra salt lake, Spain. This strain, designated FP1, was a pleomorphic coccoid, neutrophilic and required at least 15 % (w/v) NaCl for growth. Strain FP1 grew at 37–60 °C, with optimal growth at 50 °C. Mg was not required, but growth was observed with up to 10 % (w/v) MgSO. Polar lipid analysis revealed the presence of mannose-6-sulfate(1-2)-glucose glycerol diether as a major glycolipid. Both CC and CC core lipids were present. The genomic DNA G+C content was 62.0 mol%. Phylogenetic analysis based on comparison of 16S rRNA gene sequences demonstrated that the isolate was most closely related to species of the genus . DNA–DNA reassociation values between strain FP1 and the most closely related species of the genus (, and ) were lower than 29 %. It is therefore considered that strain FP1 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is FP1 (=DSM 18328=ATCC BAA-1310).

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2007-07-01
2019-10-14
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C NMR assignments for the polar lipids from strain FP1 . [ PDF] (75 KB)

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A thin-layer chromatogram of total polar lipids from strain FP1 .[ PDF] (50 KB)

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