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      Adaptive Metabolism in Staphylococci: Survival and Persistence in Environmental and Clinical Settings

      review-article
      1 , , 2
      Journal of Pathogens
      Hindawi

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          Abstract

          Staphylococci are highly successful at colonizing a variety of dynamic environments, both nonpathogenic and those of clinical importance, and comprise the list of pathogens of global public health significance. Their remarkable survival and persistence can be attributed to a host of strategies, one of which is metabolic versatility—their ability to rapidly alter their metabolism in the presence of transient or long-term bacteriostatic and bactericidal conditions and facilitate cellular homeostasis. These attributes contribute to their widespread dissemination and challenging eradication particularly from clinical settings. The study of microbial behaviour at the metabolite level provides insight into mechanisms of survival and persistence under defined environmental and clinical conditions. This paper reviews the range of metabolic modulations that facilitate staphylococcal acclimatization and persistence in varying terrestrial and host conditions, and their public health ramifications in these settings.

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          Most cited references95

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          Persister cells, dormancy and infectious disease.

          Kim Lewis (2007)
          Several well-recognized puzzles in microbiology have remained unsolved for decades. These include latent bacterial infections, unculturable microorganisms, persister cells and biofilm multidrug tolerance. Accumulating evidence suggests that these seemingly disparate phenomena result from the ability of bacteria to enter into a dormant (non-dividing) state. The molecular mechanisms that underlie the formation of dormant persister cells are now being unravelled and are the focus of this Review.
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            Persister cells and tolerance to antimicrobials.

            Bacterial populations produce persister cells that neither grow nor die in the presence of microbicidal antibiotics. Persisters are largely responsible for high levels of biofilm tolerance to antimicrobials, but virtually nothing was known about their biology. Tolerance of Escherichia coli to ampicillin and ofloxacin was tested at different growth stages to gain insight into the nature of persisters. The number of persisters did not change in lag or early exponential phase, and increased dramatically in mid-exponential phase. Similar dynamics were observed with Pseudomonas aeruginosa (ofloxacin) and Staphylococcus aureus (ciprofloxacin and penicillin). This shows that production of persisters depends on growth stage. Maintaining a culture of E. coli at early exponential phase by reinoculation eliminated persisters. This suggests that persisters are not at a particular stage in the cell cycle, neither are they defective cells nor cells created in response to antibiotics. Our data indicate that persisters are specialized survivor cells.
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              TREATMENT OF STAPHYLOCOCCAL INFECTIONS WITH PENICILLIN BY INTERMITTENT STERILISATION

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                Author and article information

                Contributors
                Journal
                J Pathog
                J Pathog
                JPATH
                Journal of Pathogens
                Hindawi
                2090-3057
                2090-3065
                2018
                20 September 2018
                : 2018
                : 1092632
                Affiliations
                1Faculty of Natural & Applied Sciences, Trinity Western University, BC, Canada
                2Department of Biology, University of Hail, Saudi Arabia
                Author notes

                Academic Editor: Chrissanthy Papadopoulou

                Author information
                http://orcid.org/0000-0002-5240-2023
                Article
                10.1155/2018/1092632
                6171259
                30327733
                80d8b36a-7811-418d-be8e-102c98739fc3
                Copyright © 2018 Laura A. Onyango and Mousa M. Alreshidi.

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 29 May 2018
                : 28 July 2018
                : 12 August 2018
                Categories
                Review Article

                Infectious disease & Microbiology
                Infectious disease & Microbiology

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