1887

Abstract

Two novel Gram-stain-negative, aerobic strains (ZXM100 and ZXM098) were isolated from seawater in the coastal region of Qingdao (36.027° N 120.184° E), China, during a massive green algae bloom. Cells were ovoid to irregular short rods and lacked flagella. Poly-β-hydroxybutyrate was accumulated. Cells did not contain bacteriochlorophyll . The isolates grew at NaCl concentrations of 3–9 % and 22–28 °C. Cω7, C and C were the major fatty acid components. The polar lipids of ZXM100 were phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, a single lipid and an unidentified aminolipid. The predominant isoprenoid quinone of ZXM100 was Q-10. Phylogenetic analysis based on 16S rRNA gene sequences showed that strains belonged to the family . Based on the results obtained in this study, strain ZXM100 was considered to represent a novel species in a new genus, for which the name gen. nov., sp. nov. is proposed. The type strain is ZXM100 ( = LMG 24861 = CGMCC 1.10234); the DNA GC content of the type strain is 54.6 mol%.

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2012-05-01
2019-12-08
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