Common questions

Where can shewanella be found?

Where can shewanella be found?

Shewanella spp. are ubiquitous in natural environments, occurring mainly in marine environments, iced fish, proteinaceous foods, and occasionally clinical samples.

Is shewanella gram-negative?

Shewanella spp. are Gram-negative bacteria widely distributed worldwide; they are saprophytes and rarely pathogenic. Their natural habitats are all forms of water and soil, but they have also been isolated from diverse sources including dairy products, oil, and carcasses.

How might bacteria help provide energy in the future?

For example, bacteria and other micro-organisms can be used to produce biofuel, in what is known as microbial biofuel cells. Of particular interest in an energy context are the photosynthesising bacteria. If they are attached to an electrode, they can generate electric energy when exposed to light.

How do you pronounce shewanella?

Phonetic spelling of Shewanella

  1. she-wanel-la.
  2. She-wanella.
  3. Shewan-ella. Noble Green.

Is pseudomonas a staph infection?

One of the most prevalent types of polymicrobial infection occurs in chronic wounds, where Pseudomonas aeruginosa and Staphylococcus aureus are the two most common causes. Although they are the most commonly associated microbial species in wound infections, very little is known about their interspecies relationship.

How do we get energy from bacteria?

Bacteria can obtain energy and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds. Bacteria can obtain energy and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.

What is the energy source of bacteria?

Bacteria, like mammalian and plant cells, use ATP or the high-energy phosphate bond (~ P) as the primary chemical energy source. Bacteria also require the B-complex vitamins as functional coenzymes for many oxidation-reduction reactions needed for growth and energy transformation.

When was Shewanella oneidensis found?

Shewanella oneidensis was first isolated in 1988 by Professor Ken Nealson from sediments of Lake Oneida in New York. The lake where the bacteria was first discovered accounts for its naming. Sequencing of S. oneidensis’s genome was completed in September , 2002.

What kind of environment does Shewanella spp live in?

Shewanella are Gram negative, motile rods with positive oxidase and catalase reactions. Shewanella spp. are ubiquitous in natural environments, occurring mainly in marine environments, iced fish, proteinaceous foods, and occasionally clinical samples.

How did the genus Shewanella get its name?

Prior to the advent of the molecular taxonomy revolution (16S rRNA gene sequencing and polyphasic taxonomy), the genus Shewanella was originally known under the genus species designation of “ Pseudomonas ( Alteromonas) putrefaciens ” and was rarely isolated or implicated in human infections.

Are there any cases of Shewanella in China?

A 2013 report from China described the recovery of eight strains of tetrodotoxin-producing Shewanella from individual patients, food, and food-processing-related materials associated with two food poisoning outbreaks ( 17 ). Lastly, Shewanella has most recently been implicated in a case of bacteremia and terminal ileitis in a healthy boy ( 18 ).

What kind of electron transfer protein is Shewanella?

The majority of extracellular electron transfer proteins that have been structurally characterised thus far are the OMCs of the Shewanella genus ( Clarke et al., 2011; Edwards, Hall, et al., 2012; Edwards et al., 2014, 2015; Fredrickson et al., 2008 ).