Open AccessTransient increases in colony counts observed in declining populations of Campylobacter jejuni held at low temperature
Author(s) -
Ekweozor Chinyelu C,
Nwoguh Chris E,
Barer Michael R
Publication year - 1998
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1998.tb12831.x
Subject(s) - viable but nonculturable , campylobacter jejuni , campylobacter , microcosm , biology , microbiology and biotechnology , colony forming unit , incubation , nutrient , bacteria , ecology , biochemistry , genetics
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.