Evaluation of the suitability of bis-(1,3-dibutylbarbituric acid) trimethine oxonol, (diBA-C4(3) -), for the flow cytometric assessment of bacterial viability

Deere, D. and Porter, J. and Edwards, C. and Pickup, R. (1995) Evaluation of the suitability of bis-(1,3-dibutylbarbituric acid) trimethine oxonol, (diBA-C4(3) -), for the flow cytometric assessment of bacterial viability. FEMS Microbiology Letters, 130 (2-3). pp. 165-169. ISSN 0378-1097

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Abstract

The usefulness of oxonol (bis-(1,3-dibutylbarbituric acid)trimethine oxonol) as a generally applicable indicator of bacterial viability was investigated using untreated and killed cultures of a variety of bacterial genera. Killing methods involved either heat or bactericidal antibiotics. For all strains tested, the fluorescent dye showed significantly more intense staining of killed than untreated cells. The sensitivity of Aeromonas salmonicida to gentamicin was assessed using oxonol. Although the bacterium was shown to be sensitive to the antibiotic, there was a delay between the time cells lost culturability, as judged by numbers of colony forming units, and that for which a dead cell population could be detected by flow cytometry.

Item Type:
Journal Article
Journal or Publication Title:
FEMS Microbiology Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2400/2404
Subjects:
?? bacterial viabilityflow cytometrymembrane potentialoxonol dyemicrobiologymolecular biologygenetics ??
ID Code:
208932
Deposited By:
Deposited On:
01 Nov 2023 14:30
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 00:29