RRC ID 34034
Author Kwon YM, Yang SH, Kwon KK, Kim SJ.
Title Nonlabens antarcticus sp. nov., a psychrophilic bacterium isolated from glacier ice, and emended descriptions of Nonlabens marinus Park et al. 2012 and Nonlabens agnitus Yi and Chun 2012.
Journal Int. J. Syst. Evol. Microbiol.
Abstract A Gram-negative, proteorhodopsin-containing, orange pigmented, rod-shaped and strictly aerobic bacterium, designated strain AKS622(T), was isolated from a glacier core collected from the coast of King George Island, Antarctica. 16S rRNA gene sequence analysis revealed that strain AKS622(T) was affiliated to the genus Nonlabens of the family Flavobacteriaceae and showed highest similarity to Nonlabens marinus S1-08(T) (97.9%). The level of DNA-DNA relatedness between strain AKS622(T) and N. marinus S1-08(T) was 46%. Optimal growth of strain AKS622(T) was observed at pH 7.0, at 15 °C and with 2.0% NaCl. The predominant cellular fatty acids were anteiso-C(15 : 0), iso-C(16 : 0), iso-C(16 : 0) 3-OH, C17:0 2-OH and summed feature 3 (comprising C(16 : 1)ω7c and/or C(16 : 1)ω6c). The DNA G+C content was 37.9 mol%. The major respiratory quinone was MK-6. Phosphatidylethanolamine, four unidentified glycolipids, three unidentified aminolipids and one unidentified lipid were detected as major polar lipids. On the basis of the data from this polyphasic taxonomic study, it was concluded that strain AKS622(T) represents a novel species within the genus Nonlabens, for which the name Nonlabens antarcticus sp. nov. is proposed. The type strain is AKS622(T) ( = KCCM 43019(T) = JCM 14068(T)). Emended descriptions of N. marinus Park et al. 2012 and Nonlabens agnitus Yi and Chun 2012 are given.
Volume 64(Pt 2)
Pages 400-5
Published 2014-2
DOI 10.1099/ijs.0.056606-0
PII ijs.0.056606-0
PMID 24065773
MeSH Antarctic Regions Bacterial Typing Techniques Base Composition DNA, Bacterial / genetics Fatty Acids / chemistry Flavobacteriaceae / classification* Flavobacteriaceae / genetics Flavobacteriaceae / isolation & purification Glycolipids / chemistry Ice Cover / microbiology* Molecular Sequence Data Nucleic Acid Hybridization Phosphatidylethanolamines / chemistry Phylogeny* RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Vitamin K 2 / analogs & derivatives Vitamin K 2 / chemistry
IF 1.932
Times Cited 6
WOS Category MICROBIOLOGY
Resource
General Microbes JCM 14068