Affiliation:
1. CSIR-Centre for Cellular and Molecular Biology Uppal Road, Hyderabad-500 007, India
Abstract
Two novel violet-pigmented, Gram-negative, rod-shaped, non-motile bacteria, designated strains M4-16T and M4-9, were isolated from sediment from an Arctic glacier. The predominant fatty acids of both strains were C16 : 1ω7c and/or C16 : 1ω6c (summed feature 3), C16 : 0, C14 : 0 and C18 : 1ω7c and/or C18 : 1ω6c (summed feature 8) and both strains contained ubiquinone-8 as the respiratory quinone. The polar lipids consisted of phosphatidylethanolamine, two unidentified phospholipids and one unidentified aminolipid. 16S rRNA gene sequence analysis indicated that strains M4-16T and M4-9 were members of the genus
Iodobacter
and closely related to
Iodobacter fluviatilis
ATCC 33051T with pairwise sequence similarity of 98.9 %. The DNA–DNA relatedness between strains M4-9 and M4-16T was 92.5 %, while strains M4-9 and M4-16T had DNA–DNA relatedness values of 21.5 and 18.2 %, respectively, with
Iodobacter fluviatilis
JCM 9044T. The RAPD-PCR banding patterns of strains M4-9 and M4-16T were similar but differed from that of
Iodobacter fluviatilis
JCM 9044T. Based on data from the current polyphasic study, strains M4-16T and M4-9 represent a novel species of the genus
Iodobacter
, for which the name
Iodobacter
arcticus sp. nov. is proposed. The type strain of
Iodobacter
arcticus is M4-16T ( = CIP 1103011T = MTCC 11351T).
Funder
CSIR Network Project on Exploitation of India’s rich microbial diversity
National Centre for Antarctic and Ocean Research, Goa
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
13 articles.
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