Shewanella loihica PV-4

Shewanella_loihica
Names Shewanella loihica PV-4
Accession numbers NC_009092
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 loihica , formerly Shewanella sp. strain PV-4, was isolated from iron-rich microbial mats at an active, deep sea, hydrothermal Naha Vent (1325 m below sea level), located on the South Rift of Loihi Seamount, Hawaii. PV-4 is an orange colour, psychrotolerant, capable of reducing metals at temperatures from 0 to 37 degrees C, and has a temperature optimum of 18 degrees C. Growth is observed in a salinity range of 0.05 to 5%. Metal reduction is observed at pH 7.0-8.9, while growth is observed in a pH range of 5.5 to 10 aerobically. The electron donors lactate, formate, pyruvate as well as hydrogen can be utilized with a reduction of Fe(III)-citrate, Mn(IV)-oxide, Co(III)-EDTA, Cr(VI), and U(VI). The strain can not use acetate as an electron donor. PV-4 produces single domain magnetite at temperatures from 14 to 37 degrees C (adapted from http://genome.jgi-psf.org/she_p/she_p.home.html). (HAMAP: SHELP)
Taxonomy
Kingdom:Bacteria
Phylum:Proteobacteria
Class:Gammaproteobacteria
Order:Alteromonadales
Family:Shewanellaceae
Genus:Shewanella
Species:loihica
Strain PV-4
Complete Yes
Sequencing centre (05-MAR-2007) US DOE Joint Genome Institute, 2800 Mitchell Drive B100, Walnut Creek, CA 94598-1698, USA
(09-MAR-2007) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method NA
Isolation site "Iron-rich mat; hydrothermal vent; 1,325 m depth from Naha Vents, on the south rift of Loihi, Hawaii"
Isolation country USA
Number of replicons 1
Gram staining properties Negative
Shape Bacilli
Mobility Yes
Flagellar presence Yes
Number of membranes 2
Oxygen requirements Facultative
Optimal temperature NA
Temperature range Mesophilic
Habitat Multiple
Biotic relationship Free living
Host name NA
Cell arrangement Pairs, Singles
Sporulation Nonsporulating
Metabolism Iron reducer
Uranium reducer
Energy source Heterotroph
Diseases NA
Pathogenicity No