Survival mechanisms and culturability of Campylobacter jejuni under stress conditions

Culture-based isolation and enumeration of bacterial human pathogens from environmental and human food samples has significant limitations. Many pathogens enter a viable but non-culturable (VBNC) state in response to stress, and cannot be detected via culturing methods. Favourable growth conditions...

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Bibliographic Details
Published in:Antonie van Leeuwenhoek 2009-11, Vol.96 (4), p.377-394
Main Authors: Jackson, D. Nathan, Davis, Bailey, Tirado, Sandra M, Duggal, Megha, van Frankenhuyzen, Jessica K, Deaville, Deanna, Wijesinghe, M. A. K, Tessaro, Michael, Trevors, J. T
Format: Article
Language:English
Subjects:
Bacteria
Bacteriology
Biological and medical sciences
Biomedical and Life Sciences
Campylobacter jejuni
Campylobacter jejuni - physiology
Carbon
Cell division
Cell growth
Energy balance
Food
Food contamination & poisoning
Fundamental and applied biological sciences. Psychology
Gene expression
Growth conditions
Growth, nutrition, cell differenciation
Humans
Life Sciences
Medical Microbiology
Microbial Viability
Microbiology
Moisture content
Nutrient content
Oxidation
Pathogens
pH effects
Plant Sciences
Respiration
Review Paper
Reviews
Salinity effects
Soil Science & Conservation
Stress
Stress, Physiological
Survival
Temperature effects
Thermodynamics
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Summary:Culture-based isolation and enumeration of bacterial human pathogens from environmental and human food samples has significant limitations. Many pathogens enter a viable but non-culturable (VBNC) state in response to stress, and cannot be detected via culturing methods. Favourable growth conditions with a source of energy and an ideal stoichiometric ratio of carbon to inorganic elements can reverse this VBNC state. This review will focus on the bacterium Campylobacter jejuni which is a leading cause of food borne illness in the developed world. C. jejuni can enter a VBNC state in response to extremes in: pH, moisture content, temperature, nutrient content and salinity. Once in a VBNC state, the organism must maintain an energy balance from substrate oxidation through respiration to grow, divide and remain viable. The goal of this review is a greater understanding of how abiotic stress and thermodynamics influence the viability of C. jejuni.
ISSN:0003-6072
1572-9699
DOI:10.1007/s10482-009-9378-8