Halorubrum depositum sp. nov., a Novel Halophilic Archaeon Isolated from a Salt Deposit

Abstract

A non-motile, pleomorphic rod-shaped or oval, red-pigmented (nearly scarlet), extremely halophilic archaeon, strain Y78^T, was isolated from a salt deposit of Yunnan salt mine, China. Analysis of the 16S rRNA gene sequence showed that it was phylogenetically related to species of the genus Halorubrum, with a close relationship to Halorubrum rutilum YJ-18-S1^T (98.6%), Halorubrum yunnanense Q85^T (98.3%), and Halorubrum lipolyticum 9-3^T (98.1%). The temperature, NaCl, and pH ranges for growth were 25–50 °C, 12–30% (w/v), and 6.5–9.0, respectively. Mg²⁺ was required for growth. The polar lipids of strain Y78^T were phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester, phosphatidylglycerol sulfate, and a sulfated diglycosyl diether. The DNA G+C content was 66.6 mol%. DNA–DNA hybridization values between strain Y78^T and two closely related species of the genus Halorubrum were far below 70%. Based on the data presented in this study, strain Y78^T represents a novel species for which the name Halorubrum depositum sp. nov. is proposed; the type strain is Y78^T (= CGMCC 1.15456^T = JCM 31272^T).

from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2CMBCds
via IFTTT