Abstract
Members of genus Skermanella were described as Gram-negative, motile, aerobic, rod-shaped, obligate-heterotrophic bacteria and unable to fix nitrogen. In this study, the genome sequence of Skermanella stibiiresistens SB22T is reported. Phylogenetic analysis using core proteins confirmed the phylogenetic assignment based on 16S rRNA gene sequences. Strain SB22T has all the proteins for complete glycolysis, tricarboxylic acid cycle and pentose phosphate pathway. The RuBisCO encoding genes cbbL1S1 and nitrogenase delta subunit gene anfG are absent, consistent with its inability to fix carbon and nitrogen, respectively. In addition, the genome possesses a series of flagellar assembly and chemotaxis genes to ensure its motility.
Highlights
The type species for the genus Skermanella is Skermanella parooens ACM 2042T, which was originally proposed as Conglomeromonas largomobilis subsp. parooensis by Skerman et al in 1983 [1]
This genus comprises four validly published species, Skermanella parooensis [3], Skermanella aerolata [4], Skermanella xinjiangensis [5] and Skermanella stibiiresistens [6], which were isolated from fresh water, air, sandy soil and a coal mine, respectively
A total of 515 conserved proteins were identified among them using cluster algorithm tool MCL with default values and a neighbor joining (NJ) tree was built based on this set
Summary
The type species for the genus Skermanella is Skermanella parooens ACM 2042T, which was originally proposed as Conglomeromonas largomobilis subsp. parooensis by Skerman et al in 1983 [1]. It was transferred to the genus Skermanella (family Rhodospirillaceae) on the basis of phylogenetic evidence and phenotypic characteristics, especially the inability to fix nitrogen [2,3]. At present, this genus comprises four validly published species, Skermanella parooensis [3], Skermanella aerolata [4], Skermanella xinjiangensis [5] and Skermanella stibiiresistens [6], which were isolated from fresh water, air, sandy soil and a coal mine, respectively. We present the draft genome sequence of a Skermanella type strain S. stibiiresistens SB22T and compare it with the members of the related genera Azospirillum and Rhodospirillum
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