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  • Title: Youngimonas vesicularis gen. nov., sp. nov., of the family Rhodobacteraceae, isolated from surface seawater, reclassification of Donghicola xiamenensis Tan et al. 2009 as Pseudodonghicola xiamenensis gen. nov., comb. nov. and emended description of the genus Donghicola Yoon et al. 2007.
    Author: Hameed A, Shahina M, Lin SY, Nakayan P, Liu YC, Lai WA, Hsu YH.
    Journal: Int J Syst Evol Microbiol; 2014 Aug; 64(Pt 8):2729-2737. PubMed ID: 24844264.
    Abstract:
    A Gram-staining-negative, non-pigmented, strictly aerobic, rod-shaped, non-spore-forming, non-motile bacterium, devoid of bacteriochlorophyll, designated strain CC-AMW-E(T), was isolated from surface seawater off the coast at Kending, Taiwan. Strain CC-AMW-E(T) shared 95.7 and 93.9% 16S rRNA gene sequence similarity, respectively, with the type strains of the type species of the genera Donghicola (Donghicola eburneus SW-277(T)) and Roseovarius (Roseovarius tolerans EL-172(T)). The predominant (>75% of the total) fatty acid was summed feature 8 (C(18 : 1)ω6c and/or C(18 : 1)ω7c). The polar lipid profile included major amounts of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and an unidentified aminolipid. In addition, moderate amounts of an unidentified lipid and trace amounts of an unidentified phospholipid were detected. The DNA G+C content was 67.9 mol%. Ubiquinone Q-10 was the sole respiratory quinone. Based on its phylogenetic distinctiveness and distinguishing phenotypic characteristics (in particular its polar lipid pattern), we conclude that strain CC-AMW-E(T) represents a novel genus and species of the family Rhodobacteraceae, for which the name Youngimonas vesicularis gen. nov., sp. nov. is proposed. The type strain of Youngimonas vesicularis is CC-AMW-E(T) ( = JCM 18819(T) = BCRC 80549(T)). In addition, an emended description of the genus Donghicola Yoon et al. 2007 and the reclassification of Donghicola xiamenensis Tan et al. 2009 as Pseudodonghicola xiamenensis gen. nov., comb. nov. (type strain Y-2(T) = MCCC 1A00107(T) = LMG 24574(T) = CGMCC 1.7081(T)) are proposed.
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