Cell Envelope of Corynebacteria: Structure and Influence on Pathogenicity

  • Burkovski A
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Abstract

To date the genus Corynebacterium comprises 88 species. More than half of these are connected to human and animal infections, with the most prominent member of the pathogenic species being Corynebacterium diphtheriae , which is also the type species of the genus. Corynebacterium species are characterized by a complex cell wall architecture: the plasma membrane of these bacteria is followed by a peptidoglycan layer, which itself is covalently linked to a polymer of arabinogalactan. Bound to this, an outer layer of mycolic acids is found which is functionally equivalent to the outer membrane of Gram-negative bacteria. As final layer, free polysaccharides, glycolipids, and proteins are found. The composition of the different substructures of the corynebacterial cell envelope and their influence on pathogenicity are discussed in this paper.

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Burkovski, A. (2013). Cell Envelope of Corynebacteria: Structure and Influence on Pathogenicity. ISRN Microbiology, 2013, 1–11. https://doi.org/10.1155/2013/935736

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