Bacterioplanes sanyensis gen. nov., sp. nov., a PHB-accumulating bacterium isolated from a pool of Spirulina platensis cultivation
2014
Wang, Guanghua | Jia, Qikun | Li, Tao | Dai, Shikun | Wu, Huanlian | He, Hui | Fan, Jiewei | Xiang, Wenzhou | Li, Xiang
A Gram-negative, poly-3-hydroxybutyrate-accumulating rod bacterium, strain GYP-2ᵀ, was isolated from a pool of marine Spirulina platensis cultivation, Sanya, China. Growth was observed at 10–45 °C and pH 6–10 in the presence of 1–10 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the new isolate belonged to Gammaproteobacteria and displayed 93.8–95.3 % 16S rRNA gene sequences similarities to members of the genera Thalassolituus, Oleibacter, and Oceanobacter, but house-keeping gene gyrB (encode DNA gyrase beta subunit) demonstrated that the new isolate was distantly related to Thalassolituus, Oleibacter, and Oceanobacter species (only 77–83 % gene gyrB sequences similarities).The G+C content of genomic DNA was 55 mol%. The major respiratory quinone was Q-9, while that for Oceanobacter kriegii LMG 6238ᵀ was Q-8. Major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylethanolamine. On the basis of its physiological, chemotaxonomic, and molecular properties, strain GYP-2ᵀ is suggested to represent a novel species of a new genus in Gammaproteobacteria, for which the name Bacterioplanes sanyensis gen. nov., sp. nov. is proposed. The type strain is GYP-2ᵀ (=CGMCC 1.12392ᵀ=KCTC 32220ᵀ).
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