Two novel Gram-stain-negative, aerobic strains (ZXM100T 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 a. The isolates grew at NaCl concentrations of 3–9 % and 22–28 °C. C18 : 1ω7c, C18 : 0 and C16 : 0 were the major fatty acid components. The polar lipids of ZXM100T were phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, a single lipid and an unidentified aminolipid. The predominant isoprenoid quinone of ZXM100T was Q-10. Phylogenetic analysis based on 16S rRNA gene sequences showed that strains belonged to the family Rhodobacteraceae. Based on the results obtained in this study, strain ZXM100T was considered to represent a novel species in a new genus, for which the name Lentibacter algarum gen. nov., sp. nov. is proposed. The type strain is ZXM100T ( = LMG 24861T = CGMCC 1.10234T); the DNA G+C content of the type strain is 54.6 mol%.
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Funding
This study was supported by the:
National High Technology Research and Development Program of China
(Award 863 Program, no. 2007AA09Z434)
National Natural Science Foundation of China
(Award no. 40876067)
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