In:
International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 62, No. Pt_8 ( 2012-08-01), p. 1838-1844
Abstract:
A Gram-staining-negative, aerobic, motile, oxidase- and catalase-positive, rod-shaped strain, designated ZS2-30 T , was isolated from Antarctic intertidal sandy sediment. The strain grew at 4–35 °C (optimum, 25 °C) and in 0–25 % (w/v) NaCl (optimum, 3.0–4.0 %). It could reduce nitrate to nitrite and hydrolyse Tween 80. The predominant cellular fatty acids of strain ZS2-30 T were summed feature 3 (C 16 : 1 ω7 c and/or C 16 : 1 ω6 c ), C 16 : 0 , C 18 : 1 ω9 c , C 16 : 1 ω9 c , C 12 : 0 3-OH and C 12 : 0 . The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and an unidentified aminophospholipid. The genomic DNA G+C content of strain ZS2-30 T was 55.8 mol%. Analyses of 16S rRNA gene sequences revealed that strain ZS2-30 T was affiliated with the genus Marinobacter . It showed highest 16S rRNA gene sequence similarities to the type strains of three species of the genus Marinobacter , namely Marinobacter maritimus (98.3 %), Marinobacter psychrophilus (98.1 %) and Marinobacter goseongensis (97.1 %), but the DNA–DNA relatedness values between strain ZS2-30 T and the above three species were all lower than 45 %. Moreover, strain ZS2-30 T could be distinguished from closely related species of the genus Marinobacter by various phenotypic properties. Based on this taxonomic study using a polyphasic approach, strain ZS2-30 T is considered to represent a novel species in the genus Marinobacter , for which the name Marinobacter antarcticus sp. nov. is proposed. The type strain of Marinobacter antarcticus is ZS2-30 T ( = CGMCC 1.10835 T = KCTC 23684 T ).
Type of Medium:
Online Resource
ISSN:
1466-5026
,
1466-5034
DOI:
10.1099/ijs.0.035774-0
Language:
English
Publisher:
Microbiology Society
Publication Date:
2012
detail.hit.zdb_id:
215062-1
detail.hit.zdb_id:
2056611-6
SSG:
12
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