Shewanella halifaxensis HAW-EB4

Shewanella_halifaxensis
Names Shewanella halifaxensis HAW-EB4
Accession numbers NC_010334
Background Shewanella are facultatively anaerobic, Gram-negative bacteria, motile by polar flagella, rod-like, and generally associated with aquatic or marine environments. They are capable of using a variety of compounds as electron acceptors, including oxygen, iron, manganese, uranium, nitrate, nitrite, fumarate, to name but a few. This ability makes Shewanella important for bioremediation of contaminated metals and radioactive wastes. The genus Shewanella comprises 36 recognized and hundreds of uncharacterized cultivable species. Shewanella halifaxensis (strain HAW-EB4) is an obligately respiratory denitrifying and RDX-mineralizing bacterium isolated from sediment in a munitions-dumping area of the Emerald Basin (depth of 215 m, Atlantic Ocean), offshore of Halifax Harbour (Nova Scotia, Canada). This psychrophilic, sodium cations-requiring and slightly halophilic bacterium is able to degrade hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) at 10 degrees Celsius. RDX is a member of a family of nitramine compounds which are used in the production of explosives. These chemicals are toxic and can be a major source of contamination of marine and freshwater sediments. (HAMAP: SHEHH)
Taxonomy
Kingdom:Bacteria
Phylum:Proteobacteria
Class:Gammaproteobacteria
Order:Alteromonadales
Family:Shewanellaceae
Genus:Shewanella
Species:halifaxensis
Strain HAW-EB4
Complete Yes
Sequencing centre (12-FEB-2008) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
(25-JAN-2008) US DOE Joint Genome Institute, 2800 Mitchell Drive B100, Walnut Creek, CA 94598-1698, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method NA
Isolation site Sediment of the Emerald Basin at 215m depth offshore of Halifax Harbour in the Atlantic Ocean
Isolation country Canada
Number of replicons 1
Gram staining properties Negative
Shape Bacilli
Mobility No
Flagellar presence Yes
Number of membranes 2
Oxygen requirements Facultative
Optimal temperature 10.0
Temperature range Psychrophilic
Habitat Marine, Sediment
Biotic relationship Free living
Host name NA
Cell arrangement Pairs, Singles
Sporulation Nonsporulating
Metabolism Denitrifying
Energy source Heterotroph
Diseases NA
Pathogenicity No