Query: NC_009901:2915939 Shewanella pealeana ATCC 700345, complete genome
Lineage: Shewanella pealeana; Shewanella; Shewanellaceae; Alteromonadales; Proteobacteria; Bacteria
General Information: This species was isolated from a microbial community colonizing the accessory nidamental gland of the squid Loligo peali (Atlantic squid) for their capacity to respire on sulfur. It was placed in the Shewanella genus based on physiological and biochemical characteristics and 16S rRNA sequence analysis. Shewanella are ubiquitous in marine environment and play very important role in global carbon and nitrogen cycle. The present strain is moderately halophilic, requiring sodium ions for growth. Shewanella are facultatively anaerobic, Gram-negative bacteria, motile by polar flagella, rod-like, and generally associated with aquatic or marine environments.
Subject: NC_007517:2055305 Geobacter metallireducens GS-15, complete genome
Lineage: Geobacter metallireducens; Geobacter; Geobacteraceae; Desulfuromonadales; Proteobacteria; Bacteria
General Information: First isolated from the Potomac river downstream of Washington, DC, USA in 1987. This organism actively moves towards metal attractants such as iron and manganese oxides, which are insoluble, and produces type IV pili for attachment to the insoluble substrates. Common metal-reducing bacterium. This organism, similar to what is observed in Geobacteria sulfurreducens, couples the oxidation of organic molecules to the reduction of iron by using insoluble Fe (III) as an electron acceptor under anaerobic conditions. This bacterium plays an imporant part of the nutrient cycling in aquatic environments. The cell can also use uranium and plutonium, therefore, this organism and may be important for the bioremediation of contaminated waste sites.