Erysipelothrix

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Erysipelothrix
Diseases of Swine 31-1.png
Cellular and colonial morphology of Erysipelothrix rhusiopathiae
Scientific classification
Kingdom: Bacteria
Phylum: Firmicutes
Class: Erysipelotrichi
Order: Erysipelotrichales
Family: Erysipelotrichidae
Genus: Erysipelothrix
Species

Erysipelothrix rhusiopathiae
Erysipelothrix tonsillarum
Erysipelothrix inopinata
Erysipelothrix larvae[1]

Erysipelothrix is a genus of bacteria containing four species.[1][2] "The hallmark of Erysipelothrix is the presence of a type B cell wall, in which the peptide bridge is formed between amino acids at positions 2 and 4 of adjacent peptide side-chains and not, as in the vast majority of bacteria, between amino acids at positions 3 and 4."[2]

The best known species is Erysipelothrix rhusiopathiae, which causes erysipelas of swine and other animal diseases. The other two species are apparently not pathogenic.[2] E. tonsillarum was described in 1987.[3] E. inopinata was described in 2004. These two species have been isolated from the tonsils of healthy pigs.[2] The new family Erysipelotrichidae was erected to contain this genus.[2]

These bacteria are Gram-positive. They can be mistaken for Gram-negative bacteria during analysis because they lose their staining easily. They are not acid-fast. They are slender, nonmotile rod-shaped bacteria. They are straight or slightly curved and can appear long and filamentous. They exist singly, in V-shaped pairs, or in short chains. They are aerobic to facultatively anaerobic.[4]

References[edit]

  1. ^ a b Parte, A.C. "Erysipelothrix". www.bacterio.net. 
  2. ^ a b c d e Verbarg, S., et al. (2004). Erysipelothrix inopinata sp. nov., isolated in the course of sterile filtration of vegetable peptone broth, and description of Erysipelotrichaceae fam. nov. IJSEM 54(1) 221-25.
  3. ^ Takahashi, T., et al. (1987). Erysipelothrix tonsillarum sp. nov. isolated from tonsils of apparently healthy pigs. IJSB 37(2) 166-68.
  4. ^ Stackebrandt, E., et al. (2006). The Genus Erysipelothrix. Prokaryotes 4 492-510.

External links[edit]