21
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Insight of Genus Corynebacterium: Ascertaining the Role of Pathogenic and Non-pathogenic Species

      review-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          This review gathers recent information about genomic and transcriptomic studies in the Corynebacterium genus, exploring, for example, prediction of pathogenicity islands and stress response in different pathogenic and non-pathogenic species. In addition, is described several phylogeny studies to Corynebacterium, exploring since the identification of species until biological speciation in one species belonging to the genus Corynebacterium. Important concepts associated with virulence highlighting the role of Pld protein and Tox gene. The adhesion, characteristic of virulence factor, was described using the sortase mechanism that is associated to anchorage to the cell wall. In addition, survival inside the host cell and some diseases, were too addressed for pathogenic corynebacteria, while important biochemical pathways and biotechnological applications retain the focus of this review for non-pathogenic corynebacteria. Concluding, this review broadly explores characteristics in genus Corynebacterium showing to have strong relevance inside the medical, veterinary, and biotechnology field.

          Related collections

          Most cited references186

          • Record: found
          • Abstract: found
          • Article: not found

          The envelope of mycobacteria.

          Mycobacteria, members of which cause tuberculosis and leprosy, produce cell walls of unusually low permeability, which contribute to their resistance to therapeutic agents. Their cell walls contain large amounts of C60-C90 fatty acids, mycolic acids, that are covalently linked to arabinogalactan. Recent studies clarified the unusual structures of arabinogalactan as well as of extractable cell wall lipids, such as trehalose-based lipooligosaccharides, phenolic glycolipids, and glycopeptidolipids. Most of the hydrocarbon chains of these lipids assemble to produce an asymmetric bilayer of exceptional thickness. Structural considerations suggest that the fluidity is exceptionally low in the innermost part of bilayer, gradually increasing toward the outer surface. Differences in mycolic acid structure may affect the fluidity and permeability of the bilayer, and may explain the different sensitivity levels of various mycobacterial species to lipophilic inhibitors. Hydrophilic nutrients and inhibitors, in contrast, traverse the cell wall presumably through channels of recently discovered porins.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Bacterial adhesins in host-microbe interactions.

            Most commensal and pathogenic bacteria interacting with eukaryotic hosts express adhesive molecules on their surfaces that promote interaction with host cell receptors or with soluble macromolecules. Even though bacterial attachment to epithelial cells may be beneficial for bacterial colonization, adhesion may come at a cost because bacterial attachment to immune cells can facilitate phagocytosis and clearing. Many pathogenic bacteria have solved this dilemma by producing an antiphagocytic surface layer usually consisting of polysaccharide and by expressing their adhesins on polymeric structures that extend out from the cell surface. In this review, we will focus on the interaction between bacterial adhesins and the host, with an emphasis on pilus-like structures.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              The complete Corynebacterium glutamicum ATCC 13032 genome sequence and its impact on the production of L-aspartate-derived amino acids and vitamins.

              The complete genomic sequence of Corynebacterium glutamicum ATCC 13032, well-known in industry for the production of amino acids, e.g. of L-glutamate and L-lysine was determined. The C. glutamicum genome was found to consist of a single circular chromosome comprising 3282708 base pairs. Several DNA regions of unusual composition were identified that were potentially acquired by horizontal gene transfer, e.g. a segment of DNA from C. diphtheriae and a prophage-containing region. After automated and manual annotation, 3002 protein-coding genes have been identified, and to 2489 of these, functions were assigned by homologies to known proteins. These analyses confirm the taxonomic position of C. glutamicum as related to Mycobacteria and show a broad metabolic diversity as expected for a bacterium living in the soil. As an example for biotechnological application the complete genome sequence was used to reconstruct the metabolic flow of carbon into a number of industrially important products derived from the amino acid L-aspartate.
                Bookmark

                Author and article information

                Contributors
                Journal
                Front Microbiol
                Front Microbiol
                Front. Microbiol.
                Frontiers in Microbiology
                Frontiers Media S.A.
                1664-302X
                12 October 2017
                2017
                : 8
                : 1937
                Affiliations
                [1] 1Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais , Belo Horizonte, Brazil
                [2] 2Center of Genomics and System Biology, Federal University of Pará , Belém, Brazil
                [3] 3Aquacen, National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais , Belo Horizonte, Brazil
                [4] 4Department of Computational Science, Virginia Commonwealth University , Richmond, VA, United States
                [5] 5Laboratory of Immunology and Molecular Bióloga, Health Sciences Institute, Federal University of Bahiaa , Salvador, Brazil
                [6] 6Biocomplexity Institute of Virginia Tech, Virginia Tech , Blacksburg, VA, United States
                Author notes

                Edited by: Geanncarlo Lugo-Villarino, UMR5089 Institut de Pharmacologie et de Biologie Structurale (IPBS), France

                Reviewed by: Mateus Matiuzzi Da Costa, Federal University of São Francisco Valley, Brazil; Shashank Gupta, Brown University, United States

                *Correspondence: Ricardo W. Portela rwportela@ 123456gmail.com
                Vasco A. De Carvalho Azevedo vascoariston@ 123456gmail.com

                This article was submitted to Microbial Immunology, a section of the journal Frontiers in Microbiology

                Article
                10.3389/fmicb.2017.01937
                5643470
                29075239
                324cdbb4-a0df-47fa-af36-f4a08e255f50
                Copyright © 2017 Oliveira, Oliveira, Aburjaile, Benevides, Tiwari, Jamal, Silva, Figueiredo, Ghosh, Portela, De Carvalho Azevedo and Wattam.

                This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

                History
                : 08 June 2017
                : 21 September 2017
                Page count
                Figures: 4, Tables: 1, Equations: 0, References: 200, Pages: 18, Words: 15280
                Funding
                Funded by: Conselho Nacional de Desenvolvimento Científico e Tecnológico 10.13039/501100003593
                Funded by: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 10.13039/501100002322
                Categories
                Microbiology
                Review

                Microbiology & Virology
                corynebacterium,bacterial genomics,bacterial biochemistry,pathogenesis related genes,biotechnology of microorganisms

                Comments

                Comment on this article