Toxin plasmids of Clostridium perfringens

Jihong Li, Vicki Adams, Trudi L. Bannam, Kazuaki Miyamoto, Jorge P. Garcia, Francisco A Uzal, Julian I. Rood, Bruce A. McClane

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

In both humans and animals, Clostridium perfringens is an important cause of histotoxic infections and diseases originating in the intestines, such as enteritis and enterotoxemia. The virulence of this Gram-positive, anaerobic bacterium is heavily dependent upon its prolific toxin-producing ability. Many of the ∼16 toxins produced by C. perfringens are encoded by large plasmids that range in size from ∼45 kb to ∼140 kb. These plasmid-encoded toxins are often closely associated with mobile elements. A C. perfringens strain can carry up to three different toxin plasmids, with a single plasmid carrying up to three distinct toxin genes. Molecular Koch's postulate analyses have established the importance of several plasmid-encoded toxins when C. perfringens disease strains cause enteritis or enterotoxemias. Many toxin plasmids are closely related, suggesting a common evolutionary origin. In particular, most toxin plasmids and some antibiotic resistance plasmids of C. perfringens share an ∼35-kb region containing a Tn916-related conjugation locus named tcp (transfer of clostridial plasmids). This tcp locus can mediate highly efficient conjugative transfer of these toxin or resistance plasmids. For example, conjugative transfer of a toxin plasmid from an infecting strain to C. perfringens normal intestinal flora strains may help to amplify and prolong an infection. Therefore, the presence of toxin genes on conjugative plasmids, particularly in association with insertion sequences that may mobilize these toxin genes, likely provides C. perfringens with considerable virulence plasticity and adaptability when it causes diseases originating in the gastrointestinal tract.

Original languageEnglish (US)
Pages (from-to)208-233
Number of pages26
JournalMicrobiology and Molecular Biology Reviews
Volume77
Issue number2
DOIs
StatePublished - Jun 2013

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Clostridium perfringens
Plasmids
Enterotoxemia
Enteritis
Virulence
Genes
Anaerobic Bacteria
Insertional Mutagenesis
Gram-Positive Bacteria
Microbial Drug Resistance
Infection
Intestines
Gastrointestinal Tract

ASJC Scopus subject areas

  • Molecular Biology
  • Immunology and Microbiology(all)

Cite this

Li, J., Adams, V., Bannam, T. L., Miyamoto, K., Garcia, J. P., Uzal, F. A., ... McClane, B. A. (2013). Toxin plasmids of Clostridium perfringens. Microbiology and Molecular Biology Reviews, 77(2), 208-233. https://doi.org/10.1128/MMBR.00062-12

Toxin plasmids of Clostridium perfringens. / Li, Jihong; Adams, Vicki; Bannam, Trudi L.; Miyamoto, Kazuaki; Garcia, Jorge P.; Uzal, Francisco A; Rood, Julian I.; McClane, Bruce A.

In: Microbiology and Molecular Biology Reviews, Vol. 77, No. 2, 06.2013, p. 208-233.

Research output: Contribution to journalArticle

Li, J, Adams, V, Bannam, TL, Miyamoto, K, Garcia, JP, Uzal, FA, Rood, JI & McClane, BA 2013, 'Toxin plasmids of Clostridium perfringens', Microbiology and Molecular Biology Reviews, vol. 77, no. 2, pp. 208-233. https://doi.org/10.1128/MMBR.00062-12
Li, Jihong ; Adams, Vicki ; Bannam, Trudi L. ; Miyamoto, Kazuaki ; Garcia, Jorge P. ; Uzal, Francisco A ; Rood, Julian I. ; McClane, Bruce A. / Toxin plasmids of Clostridium perfringens. In: Microbiology and Molecular Biology Reviews. 2013 ; Vol. 77, No. 2. pp. 208-233.
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