Transient increases in colony counts observed in declining populations of Campylobacter jejuni held at low temperature

Abstract Colony forming unit counts of Campylobacter jejuni were serially determined in a variety of microcosms in which growth was not expected. Unremitting decline in colony counts occurred in nutrient-free systems, however, transient increases were observed in human faecal emulsions and nutrient...

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Bibliographic Details
Published inFEMS microbiology letters Vol. 158; no. 2; pp. 267 - 272
Main Authors Ekweozor, Chinyelu C, Nwoguh, Chris E, Barer, Michael R
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.01.1998
Blackwell
Oxford University Press
Subjects
Anti-Bacterial Agents - pharmacology
Bacterial physiology
Bacteriology
Biological and medical sciences
Campylobacter
Campylobacter jejuni
Campylobacter jejuni - drug effects
Campylobacter jejuni - growth & development
Chloramphenicol - pharmacology
Cold storage
Colonies
Colony Count, Microbial - methods
Diarrhea - microbiology
Emulsions
Fundamental and applied biological sciences. Psychology
Growth at low temperature
Growth, nutrition, cell differenciation
Humans
Low temperature
Microbiology
Microcosms
Nutrients
Plating efficiency
Sampling error
Specimen Handling
Temperature
Variation
Viability
Viable but nonculturable (VBNC)
Growth at low temperature
Bacterial physiology
Viable but nonculturable (VBNC)
Cold storage
Viability
Plating efficiency
Microorganism growth
Temperature
Cold
Campylobacteraceae
Bacteria
Environmental factor
Campylobacter jejuni
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Summary:Abstract Colony forming unit counts of Campylobacter jejuni were serially determined in a variety of microcosms in which growth was not expected. Unremitting decline in colony counts occurred in nutrient-free systems, however, transient increases were observed in human faecal emulsions and nutrient media on storage at between 1 and 25°C. The phenomenon, which was more pronounced at lower temperatures, could not be attributed to sampling errors, cell clumping or the influence of minor fluctuations in experimental conditions. C. jejuni is capable of either growth at low temperatures or transition between temporarily nonculturable and culturable states.
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ISSN:0378-1097
1574-6968
DOI:10.1111/j.1574-6968.1998.tb12831.x