Erysipelothrix rhusiopathiae: Difference between revisions
No edit summary |
|||
| Line 30: | Line 30: | ||
''E. rhusiopathiae'' is a gram-positive bacteria, and is also in the shape of a rod. It is found predominantly in soil and water that has been infected by an animal containing the bacteria. One of the primary animals susceptible to it are pigs. This bacteria has a longer lifespan and can live for weeks in soil or animal matter. This is all important to not only protect animals from it, but humans as well. ''E. rhusiopathiae'' is zootonic which means it can jump from animals to humans. In humans, the bacteria can cause many infections. One being Erysipeloid, which results in a rash typically on the hands but can be contracted on any part of the body. The rash turns purple and red and is accompanied by swelling. Being able to safely manage this bacteria is important for the health of humans. | |||
==Genome Structure== | ==Genome Structure== | ||
The genome of | The genome of ''E. rhusiopathiae'' is approximately 1,787,941 base pairs in size, though this can vary by strain. It consists of a single circular chromosome. A notable feature is its production of H2S, aiding its survival within a host. The bacterium is also characterized by its low mobility. The genome contains virulence genes, which enhance its ability to invade hosts, and metabolic genes that allow it to adapt to different environments. Complete sequencing of strains Sy1027 and Fujisawa has provided valuable insights into the bacterium's characteristics. | ||
==Cell Structure, Metabolism and Life Cycle== | ==Cell Structure, Metabolism and Life Cycle== | ||
''E. rhusiopathiae'' is a gram-positive, non-spore-forming, and non-acid-fast bacteria. Physically, it is a rod-shaped bacillus. It mainly relies on fermentation for energy and can produce acid from glucose, fructose, galactose, and lactose, but not from maltose, xylose, and mannitol. During its life, it is a pathogen or a commensal that lives in the wild in domestic animals, mostly fish and birds. Its virulence is assisted by a heat-labile capsule that produces H₂S. | |||
==Ecology and Pathogenesis== | ==Ecology and Pathogenesis== | ||
'' | ''E. rhusiopathiae'' is a geographically diverse bacteria, one that is found in both marine and terrestrial life. ''E. rhusiopathiae'' has a parasitic symbiotic relationship, although there are cases where the infection of ''E. rhusiopathiae'' leads to a fatal outcome for the host (predatory symbiotic relationship).<br> | ||
'' | ''E. rhusiopathiae'' is an organism that causes disease, specifically being an opportunistic pathogen. ''E. rhusiopathiae'' is known to infect both humans and animals, with the animals being both marine and terrestrial. When a human host is infected, they showcase symptoms of erythematous skin lesions (erysipeloids). Infections of the bacteria are typically associated with a person’s occupation, specifically one dealing with the processing of live animals for food production. ''E. rhusiopathiae'' is known for infecting large populations of swine, causing economic lost due to the multitude of fatal infections within this and other animal populations.<br><br> | ||
==References== | ==References== | ||
Revision as of 22:37, 11 December 2024
Classification
Bacteria; Bacillota; Erysipelotrichia; Erysipelotrichales; Erysipelotrichaceae; Erysipelothrix.
Species
|
Erysipelothrix rhusiopathiae: [1] |
Erysipelothrix rhusiopathiae
Description and Significance
E. rhusiopathiae is a gram-positive bacteria, and is also in the shape of a rod. It is found predominantly in soil and water that has been infected by an animal containing the bacteria. One of the primary animals susceptible to it are pigs. This bacteria has a longer lifespan and can live for weeks in soil or animal matter. This is all important to not only protect animals from it, but humans as well. E. rhusiopathiae is zootonic which means it can jump from animals to humans. In humans, the bacteria can cause many infections. One being Erysipeloid, which results in a rash typically on the hands but can be contracted on any part of the body. The rash turns purple and red and is accompanied by swelling. Being able to safely manage this bacteria is important for the health of humans.
Genome Structure
The genome of E. rhusiopathiae is approximately 1,787,941 base pairs in size, though this can vary by strain. It consists of a single circular chromosome. A notable feature is its production of H2S, aiding its survival within a host. The bacterium is also characterized by its low mobility. The genome contains virulence genes, which enhance its ability to invade hosts, and metabolic genes that allow it to adapt to different environments. Complete sequencing of strains Sy1027 and Fujisawa has provided valuable insights into the bacterium's characteristics.
Cell Structure, Metabolism and Life Cycle
E. rhusiopathiae is a gram-positive, non-spore-forming, and non-acid-fast bacteria. Physically, it is a rod-shaped bacillus. It mainly relies on fermentation for energy and can produce acid from glucose, fructose, galactose, and lactose, but not from maltose, xylose, and mannitol. During its life, it is a pathogen or a commensal that lives in the wild in domestic animals, mostly fish and birds. Its virulence is assisted by a heat-labile capsule that produces H₂S.
Ecology and Pathogenesis
E. rhusiopathiae is a geographically diverse bacteria, one that is found in both marine and terrestrial life. E. rhusiopathiae has a parasitic symbiotic relationship, although there are cases where the infection of E. rhusiopathiae leads to a fatal outcome for the host (predatory symbiotic relationship).
E. rhusiopathiae is an organism that causes disease, specifically being an opportunistic pathogen. E. rhusiopathiae is known to infect both humans and animals, with the animals being both marine and terrestrial. When a human host is infected, they showcase symptoms of erythematous skin lesions (erysipeloids). Infections of the bacteria are typically associated with a person’s occupation, specifically one dealing with the processing of live animals for food production. E. rhusiopathiae is known for infecting large populations of swine, causing economic lost due to the multitude of fatal infections within this and other animal populations.
References
1. Microbe Canvas. "Erysipelothrix rhusiopathiae." Dept. Medical Microbiology and Infectious diseases.
5. Nagan, V., Erysipeloid. DermNet. 2014
Author
Page authored by Isabelle Oberdorf, Makayla Watson, Keanna Teodoro, & Jacqui Olsen, students of Prof. Bradley Tolar at UNC Wilmington.
