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  • Title: Lacimonas salitolerans gen. nov., sp. nov., isolated from surface water of a saline lake.
    Author: Zhong ZP, Liu Y, Wang F, Zhou YG, Liu HC, Liu ZP.
    Journal: Int J Syst Evol Microbiol; 2015 Dec; 65(12):4550-4556. PubMed ID: 26373783.
    Abstract:
    A Gram-stain-negative bacterium, strain TS-T30T, was isolated from a saline lake (Lake Tuosu) in Qaidam basin, Qinghai province, China, and its taxonomic position was determined by using a polyphasic approach. Cells were non-spore-forming rods, non-motile, 0.8-1.4 μm wide and 1.9-4.0 μm long. Strain TS-T30T was strictly heterotrophic and aerobic. Catalase- and oxidase-positive. Growth was observed in the presence of 0.5-11.0 % (w/v) NaCl (optimum 3.0 %), and at 10-35 °C (optimum 25 °C) and pH 6.5-10.0 (optimum pH 8.5). Strain TS-T30T contained C18 : 1ω7c as the only predominant fatty acid. The major respiratory quinone was Q-10. The DNA G+C content was 62 mol% (Tm). Phylogenetic trees based on 16S rRNA gene sequences showed that strain TS-T30T formed a distinct lineage that was independent of other most closely related genera: Lutimaribacter (95.2-95.9 % 16S rRNA gene sequence similarities), Poseidonocella (95.4 %), Ruegeria (92.8-94.9 %), Marivita (93.6-94.9 %), Seohaeicola (94.7 %), Sediminimonas (94.7 %), Shimia (93.9-94.7 %), Oceanicola (92.6-94.5 %) and Roseicyclus (94.5 %). The major polar lipids were phosphatidylglycerol, one unidentified phospholipid and an unknown aminolipid; phosphatidylcholine was not detected. These data demonstrated that strain TS-T30T represents a novel species of a new genus in the family Rhodobacteraceae, for which the name Lacimonas salitolerans gen. nov., sp. nov. is proposed. The type strain of the type species is TS-T30T ( = CGMCC 1.12477T = NBRC 110969T).
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