RT Journal Article SR Electronic(1) A1 Yu, Xiao-Dong A1 Yu, Xiao-Yun A1 Fu, Ge-Yi A1 Zhao, Zhe A1 Shen, Xia A1 Sun, Cong A1 Wu, MinYR 2019 T1 Marortus luteolus gen. nov., sp. nov., isolated from surface seawater of the East Sea in China JF International Journal of Systematic and Evolutionary Microbiology, VO 69 IS 5 SP 1490 OP 1495 DO https://doi.org/10.1099/ijsem.0.003348 PB Microbiology Society, SN 1466-5034, AB A Gram-stain-negative, motile, aerobic, rod-shaped bacterium with flagella, designated ZX-21T, was isolated from surface seawater of the East Sea in Zhoushan, China. Growth of strain ZX-21T was observed at 10-–35  o°C (optimum, 30 °C), at pH 6.0–8.5 (pHoptimum 6.5–7.0) and in the presence of 0.5–8 % (w/v) NaCl (optimum 3–4 %). It was positive for oxidase and catalase activity. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ZX-21T constituted an independent lineage within the family Spongiibacteraceae and was most closely related to Zhongshania guokunii (96.83 %). Strain ZX-21T contained ubiquinone-8 (Q-8) as the sole isoprenoid quinone and summed feature 3 (C16 : 1ω77c and/or C16 : 1ω66c), summed feature 8 (C18 : 1ω77c and/or C18 : 1ω66c) and C16 : 0 as the major fatty acids. Phosphatidylglycerol (), phosphatidylethanolamine (), diphosphatidylglycerol () and an unidentified glycolipid were the major cellular polar lipids. The DNA G+C content was 49.1 mol%. Based on itsthe morphological, physiological and chemotaxonomic characteristics, strain ZX-21Tis described as a novel species in a novel genus for whichwith the name Marortus luteolus gen. nov., sp. nov. (type strain ZX-21T = MCCC 1K03431T=KCTC 62160T) is proposed., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.003348