Undibacterium arcticum sp. nov., isolated from arctic alpine soil

Abstract

A Gram-stain-negative, aerobic, motile rod-shaped bacterium, designated 6-67 T , was isolated from a soil sample collected from Longyearbyen, Svalbard. Its taxonomic position was investigated by genotypic, phenotypic and chemotaxonomic analyses. This isolate grew at 4-28 C (optimum, 20 C), at pH 5.0-9.0 (optimum, pH 7.0) and with 0-0.2 % (w/v) NaCl. Strain 6-67T contained Q-8 as a major respiratory quinone and MK-7 as a minor component; the major fatty acids were summed feature 3 (C 16 : 1 !6c and/or C 16 : 1 !7c) and C 16 : 0 . The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two unidentified phospholipids and one unidentified aminophospholipid. The polyamines were putrescine and 2-hydroxyputrescine. 16S rRNA gene sequence analysis indicated that the novel strain 6-67 T belonged to the family Oxalobacteraceae within the class Betaproteobacteria. The DNA G+C content of strain 6-67 T was 56.21 mol%. On the basis of phylogenetic, physiological and chemotaxonomic data, strain 6-67 T is considered to represent a novel species of the genus

Undibacterium baiyunense sp. nov., Undibacterium curvum sp. nov., Undibacterium fentianense sp. nov., Undibacterium flavidum sp. nov., Undibacterium griseum sp. nov., Undibacterium hunanense sp. nov., Undibacterium luofuense sp. nov., Undibacterium nitidum sp. nov., Undibacterium rivi sp. nov., Undibacterium rugosum sp. nov. and Undibacterium umbellatum sp. nov., isolated from streams in China

“…All the polar lipids profiles of twelve strains consisted of phosphatidylethanolamine, phosphatidylglycerol, one unidentified phospholipid and two kinds of unidentified aminolipids, that were similar with profiles of other members within genus Undibacterium (Fig. S7) [2][3][4][5][6][7][8][9][10].…”

“…Strains CY7W T , CY18W T , CY22W T , FT31W T , FT137W T , FT147W T , BYS50W, BYS107W T , LFS511W T , LX15W T , LX22W T and NL8W T contained Q-8 as the major respiratory quinone, similar to the respiratory quinone profiles of other members within genus Undibacterium [1][2][3][4][5][6][7][8][9][10]. The cellular fatty acid profiles were homogeneous among twelve strains and eight reference strains.…”

“…At the time of writing, 14 novel species within this genus were reported and these species were mainly isolated from water environments (drinking water, purified water, waterfall, lake, stream and shrimp culture pond) [1][2][3][4][5][6][7][8]. Some species were also found in soil and gut samples [9,10]. The cells of genus Undibacterium are Gram-stain-negative, rod-shaped and motile with a polar flagellum [1,2].…”

Highly Diverse Aquatic Microbial Communities Separated by Permafrost in Greenland Show Distinct Features According to Environmental Niches

“…Methanogens belonging to the Methanoregula (17.5 – 19.1%) and Methanosaeta (3.3 – 5.1%) were also prominent. However, ammonia oxidizing Nitrosoarchaeum (Li et al, 2016) (5.9 – 8.2%) and anaerobic methane oxidizing Methanoperedens (formerly known as ANME-2D archaea) contributed with 5.2 – 7.3% of the archaeal 16S rRNA gene sequences. Putative methanogenic Bathyarchaeota (Evans et al, 2015) were also present in these samples (5.8 – 6.9%).…”

Undibacterium crateris sp. nov., isolated from water of crater lake

“…[3]. To date, the genus Undibacterium consists of 13 species isolated from water [1, 3–7], soil [7–9], aquatic animals [10, 11] and human intestinal tract [12]. The genus is characterized by Gram-stain-negative, oxidase-positive, non-spore-forming, rod-shaped bacteria with a flagellum.…”