Affiliation:
1. Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
Abstract
A novel Gram-stain-negative, aerobic, rod-shaped bacterium with a single polar flagellum, designated strain 2T18T, was isolated from the gut of the freshwater mussel Anodonta arcaeformis collected in the Republic of Korea. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain belonged to the genus
Chitinibacter
. Strain 2T18T formed a monophyletic clade with
Chitinibacter fontanus
KCTC 42982T,
C. tainanensis
KACC 11706T and
C. alvei
KCTC 23839T, with sequence similarities of 98.5, 98.4 and 95.9 %, respectively. Strain 2T18T exhibited optimal growth at 30 °C, at pH 8 and with 0.5 % (w/v) NaCl. The major isoprenoid quinone was ubiquinone-8 (Q-8). The predominant fatty acids were summed feature 3 (C16 : 1
ω6c and/or C16 : 1
ω7c) and C16 : 0. The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, one unidentified lipid, three unidentified phospholipids and two unidentified aminophospholipids. The G+C content of the genomic DNA was 50.6 mol%. The average nucleotide identity and digital DNA–DNA hybridization values between strains 2T18T and
C. fontanus
KCTC 42982T were below the thresholds used for the delineation of a novel species. Based on the phylogenetic, phenotypic, chemotaxonomic and genotypic characteristics, strain 2T18T represents a novel species of the genus
Chitinibacter
, for which the name Chitinibacter bivalviorum sp. nov. is proposed. The type strain is 2T18T (=KCTC 72821T=CCUG 74764T).
Funder
National Institute of Biological Resources
Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry and Fisheries
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
2 articles.
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