Polymorphobacter glacialis sp. nov., isolated from ice core.
Int J Syst Evol Microbiol
; 67(3): 617-620, 2017 Mar.
Article
in En
| MEDLINE
| ID: mdl-27902289
ABSTRACT
A Gram-stain-negative, non-spore-forming, rod-shaped bacterium, B555-2T, was isolated from an ice core drilled from Muztagh Glacier on the Tibetan Plateau, China. According to phylogenetic analysis with 16S rRNA gene sequences, the novel strain was most closely related to Polymorphobacter fuscus D40PT and Polymorphobacter multimanifer 262-7T with 98.4 and 96.9â% similarity, respectively. It grew optimally at pH 7 and 15 °C with 0.6â% NaCl (m/v). Carotenoid was detected from the cells. Major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, sphingoglycolipid, phophatidylmonomethy lethanolamine, phophatidylcholine. The major fatty acids were summed feature 3 (C16ââ1ω7c and/or iso-C15ââ0 2-OH) (42.8â%), summed feature 8 (C18ââ1ω7c and/or C18ââ1ω6c) (28.8â%), C14ââ0 2-OH (10.1â%) and C16ââ0 (8.2â%). The predominant ubiquinone was Q-10. The DNA G+C content was 62.1 mol%. In DNA-DNA hybridization tests, strain B555-2T shared 21.9 and 18.6â% DNA-DNA relatedness with P. fuscus D40PT and P.multimanifer 262-7T, respectively. Accordingly, strain B555-2T represents a novel species in the genus Polymorphobacter, for which the name Polymorphobacter glacialis sp. nov. is proposed. The type strain is B555-2T (=CGMCC 1.15519T=KCTC 52396T).
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phylogeny
/
Sphingomonadaceae
/
Ice Cover
Country/Region as subject:
Asia
Language:
En
Journal:
Int J Syst Evol Microbiol
Journal subject:
MICROBIOLOGIA
Year:
2017
Type:
Article