A Gram-negative, strictly aerobic, lemon-yellow pigmented, non-motile, rod-shaped strain designated A7G-39T was isolated from a yellow coloured marine sponge (Tethya sp.). Phylogenetic analyses based on the 16S rRNA gene sequence indicated that the new strain represented a member of the family Flavobacteriaceae of the phylum Bacteroidetes and that it showed highest sequence similarity (94.1 %) to Algibacter wandonensis WS-MY22T. The strain could be differentiated phenotypically from recognised members of the family Flavobacteriaceae. The major fatty acids of strain A7G-39T were identified as iso-C15:0 3-OH and summed feature 1 (iso-C15:1 H and/or C13:0 3-OH) as defined by the MIDI system. The DNA G+C content was determined to be 32.6 mol%, the major respiratory quinone was identified as menaquinone 7 (MK-7) and a polar lipid profile was present consisting of phosphatidylethanolamine, an unidentified aminolipid and an unidentified lipid. From the distinct phylogenetic position and combination of genotypic and phenotypic characteristics, the strain is considered to represent a novel genus for which the name Spongiivirga citrea gen. nov., sp. nov. is proposed. The type strain of S. citrea is A7G-39T (=KCTC 32990T = NBRC 110022T).
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This work was funded by a grant from Korea Food Research Institute (Project No. E0131901).
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1A. Thin-layer chromatograms showing the total polar lipid compositions of A7G-39T. Total polar lipids were detected by spraying the plate with molybdophosphoric acid, molybdenun blue, α-naphthol and ninhydrin. PE: Phosphatidylenthanolamine, UAL: unidentified aminolipid, UL: unidentified lipid. Supplementary Fig. 1B. All negative results from the API 20E, API 50CH and API ZYM strips. (PPT 629 kb)
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Yoon, J., Adachi, K., Kasai, H. et al. Spongiivirga citrea gen. nov., sp. nov., a New Marine Bacterium of the Family Flavobacteriaceae Isolated from a Marine Sponge. Curr Microbiol 70, 51–57 (2015). https://doi.org/10.1007/s00284-014-0682-9
- Marine Agar
- Unidentified Lipid
- Unidentified Aminolipids
- Major Respiratory Quinone