Salmonella spp.
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(New page: '''Salmonella spp.''' category: CarboDB) |
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'''Salmonella spp.''' | '''Salmonella spp.''' | ||
| + | It is a genus of rod-shaped, Gram-negative, non-spore forming, predominantly motile enterobacteria with diameters around 0.7 to 1.5 µm, lengths from 2 to 5 µm, and flagella which project in all directions (i.e. peritrichous). Most species produce hydrogen sulfide,[1] which can readily be detected by growing them on media containing ferrous sulfate, such as TSI. Salmonella is closely related to the Escherichia genus and are found worldwide in cold- and warm-blooded animals (including humans), and in the environment. | ||
| + | {| border="1" style="text-align: left;" | ||
| + | |+ '''Scientific classification''' | ||
| + | !Kingdom || Bacteria | ||
| + | |- | ||
| + | ! Class || Gamma Proteobacteria | ||
| + | |- | ||
| + | ! Order || Enterobacteriales | ||
| + | |- | ||
| + | ! Family || Enterobacteriaceae | ||
| + | |- | ||
| + | ! Genus || Salmonella | ||
| + | |} | ||
| + | ==Surface Characteristics== | ||
| + | Their cell wall consist of synthetic disaccharide abequose1-->3α-rhamnose | ||
| + | ==Transmission== | ||
| + | Many infections are due to ingestion of contaminated food. The contamination could also be through inhalation of bacteria-laden dust. | ||
| + | ==Pathogenic Activity== | ||
| + | After a short incubation period of a few hours to one day, the germ multiplies in the intestinal lumen causing an intestinal inflammation with diarrhea that is often muco-purulent and bloody. In infants, dehydration can cause a state of severe toxicosis. They cause illnesses such as typhoid fever, paratyphoid fever, and the foodborne illness salmonellosis. | ||
| + | ==References== | ||
| + | |||
| + | [http://en.wikipedia.org/wiki/Salmonella Wikipedia] | ||
[[category: CarboDB]] | [[category: CarboDB]] | ||
Revision as of 04:38, 9 July 2010
Salmonella spp.
It is a genus of rod-shaped, Gram-negative, non-spore forming, predominantly motile enterobacteria with diameters around 0.7 to 1.5 µm, lengths from 2 to 5 µm, and flagella which project in all directions (i.e. peritrichous). Most species produce hydrogen sulfide,[1] which can readily be detected by growing them on media containing ferrous sulfate, such as TSI. Salmonella is closely related to the Escherichia genus and are found worldwide in cold- and warm-blooded animals (including humans), and in the environment.
| Kingdom | Bacteria |
|---|---|
| Class | Gamma Proteobacteria |
| Order | Enterobacteriales |
| Family | Enterobacteriaceae |
| Genus | Salmonella |
Contents |
Surface Characteristics
Their cell wall consist of synthetic disaccharide abequose1-->3α-rhamnose
Transmission
Many infections are due to ingestion of contaminated food. The contamination could also be through inhalation of bacteria-laden dust.
Pathogenic Activity
After a short incubation period of a few hours to one day, the germ multiplies in the intestinal lumen causing an intestinal inflammation with diarrhea that is often muco-purulent and bloody. In infants, dehydration can cause a state of severe toxicosis. They cause illnesses such as typhoid fever, paratyphoid fever, and the foodborne illness salmonellosis.
