Desulfovibrio salexigens DSM 2638
Names | Desulfovibrio salexigens DSM 2638 |
---|---|
Accession numbers | NC_012881 |
Background | Desulfovibrio salexigens (strain ATCC 14822 / DSM 2638 / NCIB 8403 / VKM B-1763) is an anaerobic, marine sulfate reducer Gram-negative bacterium isolated from "sling mud" from British Guiana about 1951 or 52. It is described as a "fat vibrio" with a single, polar flagellum that grows at 30 degrees Celsius. D. salexigens represents a type called "exigent" that has an absolute requirement for >0.5% NaCl and can grow at concentrations >10%. It is listed among those sulfate reducers capable of nitrogen fixation, possibly linked to the phosphoroclastic reaction. D.salexigens appears to show a 40 to 400 fold increased resistance to the inhibitor hibitane versus D. vulgaris and Gram-positive sulfate reducers. In non-optimal growing conditions, it is pleiomorphic in that it forms coccoid structures. Of most interest, is the salt requirement and tolerance of D. salexigens. As background, fresh-water strains (e.g., D. vulgaris) are generally inhibited by about 1% NaCl and none grows with more than 3% salt. Those from marine habitats or those that are tolerant (e.g., Desulfovibrio G20) may not require salt but grow up to about 7% NaCl. Sequencing of the genome of this bacterium may provide directions to explore the differences in the adaptations to life in extreme saline conditions. (Adaptated from: http://genome.jgi-psf.org/dessa/dessa.home.html). (EBI Integr8) |
Taxonomy | |
Kingdom: | Bacteria |
Phylum: | Proteobacteria |
Class: | Deltaproteobacteria |
Order: | Desulfovibrionales |
Family: | Desulfovibrionaceae |
Genus: | Desulfovibrio |
Species: | salexigens |
Strain | DSM 2638 |
Complete | Yes |
Sequencing centre | (22-JUN-2009) US DOE Joint Genome Institute, 2800 Mitchell Drive B310, Walnut Creek, CA 94598, USA (26-JUN-2009) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA |
Sequencing quality | Level 6: Finished |
Sequencing depth | NA |
Sequencing method | 454-GS-FLX |
Isolation site | mud in British Guyana |
Isolation country | NA |
Number of replicons | 1 |
Gram staining properties | Negative |
Shape | Bacilli |
Mobility | No |
Flagellar presence | Yes |
Number of membranes | 2 |
Oxygen requirements | Anaerobic |
Optimal temperature | NA |
Temperature range | Mesophilic |
Habitat | Multiple |
Biotic relationship | Free living |
Host name | NA |
Cell arrangement | Singles |
Sporulation | Nonsporulating |
Metabolism | Sulfate reducer |
Energy source | NA |
Diseases | NA |
Pathogenicity | No |
Glycolysis / Gluconeogenesis
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Glycine, serine and threonine metabolism
Cysteine and methionine metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Phenylalanine, tyrosine and tryptophan biosynthesis
Taurine and hypotaurine metabolism
Selenocompound metabolism
D-Arginine and D-ornithine metabolism
D-Alanine metabolism
Streptomycin biosynthesis
Lipopolysaccharide biosynthesis
Peptidoglycan biosynthesis
Pyruvate metabolism
Nitrotoluene degradation
C5-Branched dibasic acid metabolism
One carbon pool by folate
Thiamine metabolism
Riboflavin metabolism
Nicotinate and nicotinamide metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Lipoic acid metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Sulfur metabolism
Aminoacyl-tRNA biosynthesis
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Glycine, serine and threonine metabolism
Cysteine and methionine metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Phenylalanine, tyrosine and tryptophan biosynthesis
Taurine and hypotaurine metabolism
Selenocompound metabolism
D-Arginine and D-ornithine metabolism
D-Alanine metabolism
Streptomycin biosynthesis
Lipopolysaccharide biosynthesis
Peptidoglycan biosynthesis
Pyruvate metabolism
Nitrotoluene degradation
C5-Branched dibasic acid metabolism
One carbon pool by folate
Thiamine metabolism
Riboflavin metabolism
Nicotinate and nicotinamide metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Lipoic acid metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Sulfur metabolism
Aminoacyl-tRNA biosynthesis