Open AccessPoseidonibacter antarcticus sp. nov., isolated from Antarctic intertidal sediment
Author(s) -
Xiaohan Guo,
Ning Wang,
Xiaoxue Yuan,
Xiying Zhang,
Xiu-Lan Chen,
Yuzhong Zhang,
Xin Song
Publication year - 2019
Publication title -
international journal of systematic and evolutionary microbiology
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 173
eISSN - 1466-5034
pISSN - 1466-5026
DOI - 10.1099/ijsem.0.003539
Subject(s) - 16s ribosomal rna , biology , phylogenetic tree , strain (injury) , intertidal zone , flavobacteriaceae , genomic dna , bacteria , ribosomal rna , microbiology and biotechnology , botany , gene , bacteroidetes , genetics , ecology , anatomy
A Gram-reaction-negative, aerobic, flagellated and coccoid-shaped bacterial strain, designated SM1702 T , was isolated from Antarctic intertidal sediment collected off Ardely Island, West Antarctica. The strain grew at 0-30 °C and with 0.5-5.0 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences and single-copy orthologous clusters both showed that strain SM1702 T , together with Poseidonibacter lekithochrous , occupied an independent phylogenetic branch, sharing the highest 16S rRNA gene sequence similarity with type strain of the latter (95.6 %). The major fatty acids were summed feature 3 (C 16 : 1 ω 7 c and/or C 16 : 1 ω 6 c ), summed feature 8 (C 18 : 1 ω 7 c and/or C 18 : 1 ω 6 c ), C 16 : 0 , and summed feature 2 (C 14 : 0 3-OH and/or iso-C 16 : 1 I). Polar lipids were phosphatidylethanolamine and phosphatidylglycerol. The genomic DNA G+C content of strain SM1702 T was 27.1 mol%. Based on the results of the polyphasic characterisation for strain SM1702 T , it is identified as the representative of a novel species of Poseidonibacter , for which the name Poseidonibacter antarcticus sp. nov. is proposed. The type strain of Poseidonibacter antarcticus is SM1702 T (=MCCC 1K03471 T =KCTC 62796 T ).