80
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Bacteriocin as Weapons in the Marine Animal-Associated Bacteria Warfare: Inventory and Potential Applications as an Aquaculture Probiotic

      review-article

      Read this article at

      ScienceOpenPublisherPMC
          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

          As the association of marine animals with bacteria has become more commonly recognized, researchers have increasingly questioned whether these animals actually produce many of the bioactive compounds originally isolated from them. Bacteriocins, ribosomally synthesized antibiotic peptides, constitute one of the most potent weapons to fight against pathogen infections. Indeed, bacteriocinogenic bacteria may prevent pathogen dissemination by occupying the same ecological niche. Bacteriocinogenic strains associated with marine animals are a relevant source for isolation of probiotics. This review draws up an inventory of the marine bacteriocinogenic strains isolated from animal-associated microbial communities, known to date. Bacteriocin-like inhibitory substances (BLIS) and fully-characterized bacteriocins are described. Finally, their applications as probiotics in aquaculture are discussed.

          Related collections

          Most cited references133

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

          Bacteriocins: developing innate immunity for food.

          Bacteriocins are bacterially produced antimicrobial peptides with narrow or broad host ranges. Many bacteriocins are produced by food-grade lactic acid bacteria, a phenomenon which offers food scientists the possibility of directing or preventing the development of specific bacterial species in food. This can be particularly useful in preservation or food safety applications, but also has implications for the development of desirable flora in fermented food. In this sense, bacteriocins can be used to confer a rudimentary form of innate immunity to foodstuffs, helping processors extend their control over the food flora long after manufacture.
            • Record: found
            • Abstract: found
            • Article: not found

            Probiotic bacteria as biological control agents in aquaculture.

            There is an urgent need in aquaculture to develop microbial control strategies, since disease outbreaks are recognized as important constraints to aquaculture production and trade and since the development of antibiotic resistance has become a matter of growing concern. One of the alternatives to antimicrobials in disease control could be the use of probiotic bacteria as microbial control agents. This review describes the state of the art of probiotic research in the culture of fish, crustaceans, mollusks, and live food, with an evaluation of the results obtained so far. A new definition of probiotics, also applicable to aquatic environments, is proposed, and a detailed description is given of their possible modes of action, i.e., production of compounds that are inhibitory toward pathogens, competition with harmful microorganisms for nutrients and energy, competition with deleterious species for adhesion sites, enhancement of the immune response of the animal, improvement of water quality, and interaction with phytoplankton. A rationale is proposed for the multistep and multidisciplinary process required for the development of effective and safe probiotics for commercial application in aquaculture. Finally, directions for further research are discussed.
              • Record: found
              • Abstract: found
              • Article: not found

              Colicin biology.

              Colicins are proteins produced by and toxic for some strains of Escherichia coli. They are produced by strains of E. coli carrying a colicinogenic plasmid that bears the genetic determinants for colicin synthesis, immunity, and release. Insights gained into each fundamental aspect of their biology are presented: their synthesis, which is under SOS regulation; their release into the extracellular medium, which involves the colicin lysis protein; and their uptake mechanisms and modes of action. Colicins are organized into three domains, each one involved in a different step of the process of killing sensitive bacteria. The structures of some colicins are known at the atomic level and are discussed. Colicins exert their lethal action by first binding to specific receptors, which are outer membrane proteins used for the entry of specific nutrients. They are then translocated through the outer membrane and transit through the periplasm by either the Tol or the TonB system. The components of each system are known, and their implication in the functioning of the system is described. Colicins then reach their lethal target and act either by forming a voltage-dependent channel into the inner membrane or by using their endonuclease activity on DNA, rRNA, or tRNA. The mechanisms of inhibition by specific and cognate immunity proteins are presented. Finally, the use of colicins as laboratory or biotechnological tools and their mode of evolution are discussed.

                Author and article information

                Journal
                Mar Drugs
                MD
                Marine Drugs
                Molecular Diversity Preservation International
                1660-3397
                2010
                4 April 2010
                : 8
                : 4
                : 1153-1177
                Affiliations
                [1 ] Université Européenne de Bretagne, Université de Brest, Institut Universitaire de Technologie, Laboratoire, Universitaire de Biodiversité et d’Ecologie Microbienne EA3882, 6 Rue de l’Université, 29334 Quimper Cedex, France; E-Mails: floriedesriac@ 123456hotmail.fr (F.D.); benjamin.brillet@ 123456univ-brest.fr (B.B.); patrick.lechevalier@ 123456univ-brest.fr (P.L.C.)
                [2 ] Université Européenne de Bretagne, Université de Bretagne Sud, Centre de Recherche Saint Maudé, Laboratoire de Biotechnologie et Chimie Marines EA3884, 56321 Lorient Cedex, France; E-Mails: diane.defer@ 123456univ-ubs.fr (D.D.); nathalie.bourgougnon@ 123456univ-ubs.fr (N.B.)
                Author notes
                *Author to whom correspondence should be addressed; E-Mail: yannick.fleury@ 123456univ-brest.fr ; Tel.: +33-298-641-930; Fax: +33-298-641-969.
                Article
                marinedrugs-08-01153
                10.3390/md8041153
                2866480
                20479972
                2c6606cf-88bb-4750-af63-b6918e1547de
                © 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland

                This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license ( http://creativecommons.org/licenses/by/3.0/).

                History
                : 6 February 2010
                : 28 March 2010
                : 1 April 2010
                Categories
                Review

                Pharmacology & Pharmaceutical medicine
                bacteriocin,blis,probiotic,aquaculture
                Pharmacology & Pharmaceutical medicine
                bacteriocin, blis, probiotic, aquaculture

                Comments

                Comment on this article

                Related Documents Log