Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2011-4-11
pubmed:abstractText
The aim of this study was to examine the potential of using a lux-tagged Cronobacter sakazakii strain to monitor growth of the bacterium in various liquids. C. sakazakii was transformed with plasmid p16S lux, and integration of the plasmid at the desired site on the chromosome was confirmed by PCR. The growth of the lux-tagged strain was similar to that of the non-lux-tagged strain, and the integrated plasmid was stable when cells were cultured in the absence of antibiotic. Growth of the lux-tagged strain was monitored in real time in Luria-Bertani broth, skim milk, and infant milk formula by using both the Luminoskan luminometer and the Xenogen IVIS imager. Bioluminescence could be detected when the lux-tagged strain was cocultured with other bacteria. The effect of monocaprylin and nisin on the growth of C. sakazakii in milk was monitored by measuring bioluminescence. In conclusion, growth of a lux-tagged C. sakazakii can be monitored in real time in both clear and opaque liquids by measuring bioluminescence. lux-tagged C. sakazakii strains could be potentially used in high-throughput assays to monitor the effects of various infant milk formula compositions on growth of the bacterium.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1944-9097
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
573-9
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Real-time monitoring of luciferase-tagged Cronobacter sakazakii in reconstituted infant milk formula.
pubmed:affiliation
Department of Microbiology, University College Cork, Cork, Ireland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't