Open AccessGemmobacter caeruleus sp. nov., a novel species originating from lake sediment
Author(s) -
Jianhang Qu,
Wenwen Ma,
Jia Zhou,
Xifeng Wang,
Wen-Lan Lu,
Lingbo Qu,
Linfeng Wang
Publication year - 2020
Publication title -
international journal of systematic and evolutionary microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 173
eISSN - 1466-5034
pISSN - 1466-5026
DOI - 10.1099/ijsem.0.004007
Subject(s) - biology , sediment , ecology , zoology , paleontology
An aerobic, Gram-stain-negative, non-spore-forming and rod-shaped bacterial strain, designated N8 T , was isolated from the interfacial sediment of Taihu Lake in PR China. The strain formed white to blue colonies on R2A agar. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain N8 T represented a member of the genus Gemmobacter and was most closely related to Gemmobacter aquaticus A1-9 T (97.97 %). The average nucleotide identity and digital DNA–DNAhybridization values between strain N8 T and G. aquaticus A1-9 T based on their whole genomes were 78.8 and 21.7 %, respectively. Q-10 was the main predominant ubiquinone. The major fatty acids were summed feature 8 (C 18 : 1 ω7 c and/or C 18 : 1 ω6 c ), C 18 : 0 and C 16 : 0 . The G+C content of the genomic DNA was 66.1 mol%. The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, one unidentified phospholipid, two unidentified glycolipids and two unidentified lipids. Based on its physiological, biochemical and chemotaxonomic characteristics, strain N8 T represents a novel species of the genus Gemmobacter , for which the name Gemmobacter caeruleus sp. nov. is proposed. The type strain is N8 T =(KACC 21307 T =MCCC 1K04036 T ).