Recent findings on the viable but nonculturable state in pathogenic bacteria

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ID: 296891
2009
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Ranked #76 of 100 articles by views in FEMS microbiology reviews

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Abstract
Many bacteria, including a variety of important human pathogens, are known to respond to various environmental stresses by entry into a novel physiological state, where the cells remain viable, but are no longer culturable on standard laboratory media. On resuscitation from this 'viable but nonculturable' (VBNC) state, the cells regain culturability and the renewed ability to cause infection. It is likely that the VBNC state is a survival strategy, although several interesting alternative explanations have been suggested. This review describes the VBNC state, the various chemical and physical factors known to induce cells into this state, the cellular traits and gene expression exhibited by VBNC cells, their antibiotic resistance, retention of virulence and ability to attach and persist in the environment, and factors that have been found to allow resuscitation of VBNC cells. Along with simple reversal of the inducing stresses, a variety of interesting chemical and biological factors have been shown to allow resuscitation, including extracellular resuscitation-promoting proteins, a novel quorum-sensing system (AI-3) and interactions with amoeba. Finally, the central role of catalase in the VBNC response of some bacteria, including its genetic regulation, is described.
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openalex_W2095016906 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors James D. Oliver
Journal FEMS microbiology reviews
Year 2009
DOI
10.1111/j.1574-6976.2009.00200.x
URL
https://academic.oup.com/femsre/article-pdf/34/4/415/18141659/34-4-415.pdf
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