Open AccessAgaribacter flavus sp. nov., isolated from red algae
Author(s) -
Wen-Nan Yu,
Ji-Ru Han,
Yan Liu,
ZongJun Du,
DaShuai Mu
Publication year - 2018
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.0.002953
Subject(s) - biology , 16s ribosomal rna , strain (injury) , phylogenetic tree , botany , algae , ribosomal rna , bacteria , sequence analysis , microbiology and biotechnology , gene , genetics , anatomy
A Gram-stain-negative, non-motile, aerobic, curved-rod bacterium, designated as strain 2p52 T , was isolated from the marine algae Gracilaria blodgettii collected off the coast of Lingshui county, in Hainan province, China. Strain 2p52 T grew at 15-42 °C (optimally at 30-33 °C), at pH 6.0-10.0 (7.5-8.0) and in the presence of 1.0-8.0 % (w/v) NaCl (2.0-3.0 %). The most closely related species was Agaribacter marinus (96.5 % 16S rRNA gene sequence similarity). Phylogenetic analysis based on the sequence of the 16S rRNA gene revealed that strain 2p52 T belonged to the genus Agaribacter. The novel strain contained phophatidylethanolamine and phosphatidylglycerol as the major polar lipids. The predominant isoprenoid quinine was Q-8, and the DNA G+C content was 43.2 mol%. The major cellular fatty acids were C16 : 1ω7c and/or iso-C15 : 0 2-OH, C16 : 0, and C18 : 1ω7c. The phenotypic and systematic comparative analyses indicated that the isolate is representative of a novel species of the genus Agaribacter, and the name Agaribacter flavus sp. nov. is proposed. The type strain is 2p52 T (=KCTC 52473 T =MCCC 1H00151 T ).