%0 Journal Article %A Park, Sooyeon %A Jung, Yong-Taek %A Yoon, Jung-Hoon %T Pseudoroseicyclus aestuarii gen. nov., sp. nov., isolated from a tidal flat %D 2016 %J International Journal of Systematic and Evolutionary Microbiology, %V 66 %N 6 %P 2165-2171 %@ 1466-5034 %R https://doi.org/10.1099/ijsem.0.001003 %K tidal flat %K Pseudoroseicyclus aestuarii gen. nov., sp. nov. %K novel genus %K Novel species %K Polyphasic taxonomy %I Microbiology Society, %X A Gram-stain-negative, non-motile, aerobic and coccoid, ovoid or rod-shaped bacterial strain, designated DB-4T, was isolated from a tidal flat of the Yellow Sea, South Korea. Strain DB-4T grew optimally at 30 °C, at pH 7.0–8.0 and in the presence of approximately 1.0–2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain DB-4T clustered with the type strain of Roseicyclus mahoneyensis , showing sequence similarity of 94.8 %. It exhibited sequence similarity values of 95.6–96.1 % to the type strains of Loktanella soesokkakensis, Loktanella hongkongensis, Loktanella variabilis, Loktanella aestuariicola , , , and Loktanella cinnabarina . Strain DB-4T contained Q-10 as the predominant ubiquinone and C18:1 ω7c and cyclo C19:0 ω8c as the major fatty acids. The major polar lipids of strain DB-4T were phosphatidylcholine, phosphatidylglycerol and one unidentified aminolipid. The fatty acid and polar lipid profiles of strain DB-4T were distinguished from those of the type strains of R. mahoneyensis and some phylogenetically related Loktanella species. The DNA G+C content of strain DB-4T was 69.2 mol%. On the basis of the phylogenetic, chemotaxonomic and other phenotypic properties, strain DB-4T is considered to represent a novel species of a new genus within the family Rhodobacteraceae , for which the name Pseudoroseicyclus aestuarii gen. nov., sp. nov. is proposed. The type strain ofPseudoroseicyclus aestuarii is DB-4T (=KCTC 52038T=CECT 9025T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.001003