%0 Journal Article %A Liu, Chang %A Chen, Chun-Xiao %A Zhang, Xi-Ying %A Yu, Yong %A Liu, Ang %A Li, Guo-Wei %A Chen, Xiu-Lan %A Chen, Bo %A Zhou, Bai-Cheng %A Zhang, Yu-Zhong %T Marinobacter antarcticus sp. nov., a halotolerant bacterium isolated from Antarctic intertidal sandy sediment %D 2012 %J International Journal of Systematic and Evolutionary Microbiology, %V 62 %N Pt_8 %P 1838-1844 %@ 1466-5034 %R https://doi.org/10.1099/ijs.0.035774-0 %I Microbiology Society, %X A Gram-staining-negative, aerobic, motile, oxidase- and catalase-positive, rod-shaped strain, designated ZS2-30T, was isolated from Antarctic intertidal sandy sediment. The strain grew at 4–35 °C (optimum, 25 °C) and in 0–25 % (w/v) NaCl (optimum, 3.0–4.0 %). It could reduce nitrate to nitrite and hydrolyse Tween 80. The predominant cellular fatty acids of strain ZS2-30T were summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0, C18 : 1ω9c, C16 : 1ω9c, C12 : 0 3-OH and C12 : 0. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and an unidentified aminophospholipid. The genomic DNA G+C content of strain ZS2-30T was 55.8 mol%. Analyses of 16S rRNA gene sequences revealed that strain ZS2-30T was affiliated with the genus Marinobacter . It showed highest 16S rRNA gene sequence similarities to the type strains of three species of the genus Marinobacter , namely Marinobacter maritimus (98.3 %), Marinobacter psychrophilus (98.1 %) and Marinobacter goseongensis (97.1 %), but the DNA–DNA relatedness values between strain ZS2-30T and the above three species were all lower than 45 %. Moreover, strain ZS2-30T could be distinguished from closely related species of the genus Marinobacter by various phenotypic properties. Based on this taxonomic study using a polyphasic approach, strain ZS2-30T is considered to represent a novel species in the genus Marinobacter , for which the name Marinobacter antarcticus sp. nov. is proposed. The type strain of Marinobacter antarcticus is ZS2-30T ( = CGMCC 1.10835T = KCTC 23684T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.035774-0