Desulfurivibrio alkaliphilus AHT2
Names | Desulfurivibrio alkaliphilus AHT2 |
---|---|
Accession numbers | NC_014216 |
Background | Combustion of sulfur-containing fuels, such as coal, oil, and natural gas, contributes significantly to global environmental problems, such as air pollution and acid rain. In addition, sulfur dioxide also supports reactions that create ozone depletion in the stratosphere. So, removal of sulfur compounds from energy carriers is essential for a clean and healthy environment. A sustainable process to remove these sulfur compounds is the production of elemental sulfur (which can be used as a fertilizer or fungicide) from H2S-containing gas streams by the use of sulfur bacteria under highly alkaline (pH 10) and oxygen-limited conditions. However, the sulfate and thiosulfate byproducts of this process need to be removed from the waste stream prior to disposal. This is done by sulfate- and thiosulfate reducing bacteria in an anaerobic reactor with hydrogen as electron donor. Desulfurivibrio alkaliphilus (strain DSM 19089 / UNIQEM U267 / AHT2) is an anaerobic, haloalkaliphilic Gram-negative bacterium isolated from sediment from a highly alkaline saline soda lake in Egypt. D. alkaliphilus is adapted to a life at high pH and high salinity (haloalkaline conditions) and reduces different sulfur compounds (sulfate, thiosulfate and sulfur/polysulfide) at high pH and high salt concentrations. Comparative, structural, and functional genomics studies will allow researchers to create genomic tools, such as DNA microarrays, to study the diversity and physiology of these microorganisms in natural and engineered ecosystems. These tools are essential to study the performance of these bacteria in the removal of reduced sulfur compounds from industrial waste streams and energy carriers (e.g., natural gas and syngas). (adapted from : http://genome.jgi-psf.org/desaa/desaa.home.html). (EBI Integr8) |
Taxonomy | |
Kingdom: | Bacteria |
Phylum: | Proteobacteria |
Class: | Deltaproteobacteria |
Order: | Desulfobacterales |
Family: | Desulfobulbaceae |
Genus: | Desulfurivibrio |
Species: | alkaliphilus |
Strain | AHT2 |
Complete | Yes |
Sequencing centre | (02-JUN-2010) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA (16-FEB-2010) US DOE Joint Genome Institute, 2800 Mitchell Drive B310, Walnut Creek, CA 94598-1698, USA |
Sequencing quality | Level 6: Finished |
Sequencing depth | NA |
Sequencing method | NA |
Isolation site | Sediments from a highly alkaline saline soda lake in Egypt |
Isolation country | Egypt |
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 | Specialized |
Biotic relationship | Free living |
Host name | NA |
Cell arrangement | Singles |
Sporulation | Nonsporulating |
Metabolism | NA |
Energy source | NA |
Diseases | 40.5 |
Pathogenicity | No |
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
D-Glutamine and D-glutamate metabolism
D-Alanine metabolism
Streptomycin biosynthesis
Lipopolysaccharide biosynthesis
Peptidoglycan biosynthesis
Nitrotoluene degradation
One carbon pool by folate
Thiamine metabolism
Riboflavin metabolism
Nicotinate and nicotinamide metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Aminoacyl-tRNA biosynthesis
Pentose phosphate pathway
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
D-Glutamine and D-glutamate metabolism
D-Alanine metabolism
Streptomycin biosynthesis
Lipopolysaccharide biosynthesis
Peptidoglycan biosynthesis
Nitrotoluene degradation
One carbon pool by folate
Thiamine metabolism
Riboflavin metabolism
Nicotinate and nicotinamide metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Aminoacyl-tRNA biosynthesis