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Shewanella oneidensis.png
Shewanella oneidensis
Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gamma Proteobacteria
Order: Alteromonadales
Family: Shewanellaceae
Ivanova et al. 2004
Genus: Shewanella
MacDonell and Colwell 1985
Type species
Shewanella putrefaciens

S. abyssi
S. algae
S. algidipiscicola
S. amazonensis
S. aquimarina
S. baltica
S. benthica
S. colwelliana
S. decolorationis
S. denitrificans
S. donghaensis
S. fidelis
S. frigidimarina
S. gaetbuli
S. gelidimarina
S. glacialipiscicola
S. hafniensis
S. halifaxensis
S. halitois
S. hanedai
S. irciniae
S. japonica
S. kaireitica
S. livingstonensis
S. loihica
S. marinintestina
S. marisflavi
S. morhuae
S. olleyana
S. oneidensis
S. pacifica
S. pealeana
S. piezotolerans
S. pneumatophori
S. profunda
S. psychrophila
S. putrefaciens
S. sairae
S. schegeliana
S. sediminis
S. spongiae
S. surugensis
S. violacea
S. waksmanii
S. woodyi

Shewanella is the sole genus included in the Shewanellaceae family of marine bacteria, some species within it were formerly classed as Alteromonas. Shewanella bacteria are a normal component of the surface flora of fish and are implicated in fish spoilage.[1]


Shewanella can supply themselves with energy by drawing electrons directly from an external source, using external structures called "nanocables" that can also be used to supply electrons to an external object.[2]

Popular culture[edit]

Shewanella has become an icon for teaching about microbial electrogenesis and microbial fuel cells. Shewanella

It appeared in a comic book as "Shewy, the Electric Bacterium" in educational kits that are available for students and hobbyists.[3]

See also[edit]

Shewanella haliotis Kim et al., 2007 [4]


  1. ^ Adams and Moss, Food Microbiology, third edition 2008, pp 26, 138, 140,
  2. ^ Powell, Corey S. (January 21, 2015). "Have We Found Alien Life?". Popular Science. Retrieved 2015-10-26. 
  3. ^ MudWatt Science Kit
  4. ^ NEW TAXA - Proteobacteria: Duwoon Kim, Keun Sik Baik, Mi Sun Kim, Bok-Mi Jung, Tai-Sun Shin, Gyu-Hwa Chung, Moon Soo Rhee, and Chi Nam Seong Shewanella haliotis sp. nov., isolated from the gut microflora of abalone, Haliotis discus hannai Int J Syst Evol Microbiol December 2007 57:2926-2931; doi:10.1099/ijs.0.65257-0

External links[edit]