Sphingomonas faucium sp. nov., isolated from canyon soil

Sphin.go.mo'nas. Gr. gen. n. sphingos of sphinx; Gr. fem. n. monas unit, monad; N.L. fem. n. Sphingomonas a sphingosine‐containing monad. Proteobacteria / Alphaproteobacteria / Sphingomonadales / Sphingomonadaceae / Sphingomonas Gram‐negative, straight or slightly curved rods or ovoid cells. Rosette‐like aggregation occurs in some species, a characteristic caused by polar fimbriae. The formation of endospores is not observed. Budding, binary fission, and asymmetric division are the major modes of reproduction in most of the species. Cells are either nonmotile or motile with polar flagellation and gliding motility. Mostly aerobic, but few species are microaerobic as well. Esculin hydrolysis is done by most of the species, but there are few exceptions. Colony coloration varies from yellow or red or orange to white to nonpigmented. Catalase and oxidase tests are positive or negative for different species. Glucuronosyl ‐( 1 → 1 )‐ ceramide ( SGL‐1 ), galacturonosyl‐β ( 1 → 1 )‐ ceramide ( in several species ), and 2‐hydroxymyristic acid occur but not 3‐hydroxy fatty acids. Cell‐wall lipopolysaccharide (LPS) is replaced by sphingolipids. The major fatty acids are C 18:1 , saturated C 16:0 , and/or C 17:1 . The major 2‐hydroxy fatty acids are C 14:0 2‐OH or C 15:0 2‐OH. Glycosphingolipids are present. The predominant respiratory quinone is ubiquinone Q‐10 with minor amounts of Q‐9 and Q‐8. Homospermidine and sym ‐homospermidine are the major polyamines detected. Characteristic 16S rRNA signatures are found at positions 52:359 (C:G), 134 (G), 593 (G), 987:1218 (G:C), and 990:1215 (U:G). Few species are opportunistic pathogens that cause meningitis peritonitis, septicemia, and neonatal infections in intensive care units. Pathogenicity toward animals is not yet known. Distribution is ubiquitous with free living in natural as well as man‐made environments. DNA G + C content (mol % ) : 60.7–72.2. Type species : Sphingomonas paucimobilis Yabuuchi et al. 1990, VL34 (basonym: Pseudomonas paucimobilis Holmes et al. 1977).

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Biotransformation of benzoin by Sphingomonas sp. LK11 and ameliorative effects on growth of Cucumis sativus

Ali

¹

,

Mohanta

²

,

Asaf

³

et al. 2019

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Sphingomonas montis sp. nov., Isolated from Forest Soil of Low-Altitude Mountain

Chaudhary

¹

,

Dahal

²

,

Kim

³

2018

Curr Microbiol

6

0

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Strain DRJ-4 was isolated from forest soil of a low-altitude mountain and was taxonomically characterized by a polyphasic approach. This strain was yellow-colored, Gram-stain-negative, strictly aerobic, motile, non-sporulating, catalase-positive, oxidase-negative, and rod-shaped. Strain DRJ-4 was able to grow at 20-42 °C, pH 6.5-10.0, and 0-1.0% (w/v) NaCl concentration. Based on the 16S rRNA gene sequence analysis, strain DRJ-4 formed a distinct lineage within the members of the family Sphingomonadaceae of the phylum Proteobacteria and moderately related to Sphingomonas faucium E62-3 (96.67% sequence similarity), 'Sphingosinicella ginsenosidimutans' BS11 (96.45% sequence similarity), Sphingosinicella vermicomposti YC7378 (96.27% sequence similarity), and Sphingobium boeckii 469 (95.82% sequence similarity). The sole respiratory quinone was ubiquinone Q-10 and the major polyamine was homospermidine. The polar lipid profile revealed the presence of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, phosphatidylmonomethylethanolamine, and sphingoglycolipid. The predominant fatty acids of strain DRJ-4 were summed feature 8 (Cω7c and/or Cω6c), summed feature 3 (Cω7c and/or Cω6c), C, and Cω6c. The genomic DNA G + C was 64.0 mol %. On the basis of phenotypic, genotypic, and phylogenetic analysis, strain DRJ-4 represents a novel species of the genus Sphingomonas, for which the name Sphingomonas montis sp. nov. is proposed. The type strain of Sphingomonas montis is DRJ-4 (= KEMB 9005-708 = NBRC 113142).

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Sphingomonas faucium sp. nov., isolated from canyon soil

Cited by 11 publications

References 40 publications

Sphingomonas

Sphingomonas

Biotransformation of benzoin by Sphingomonas sp. LK11 and ameliorative effects on growth of Cucumis sativus

Sphingomonas montis sp. nov., Isolated from Forest Soil of Low-Altitude Mountain

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