Sharkey FH, Markos SI, Haylock RW. Quantification of toxin-encoding mRNA from Clostridium botulinum type E in media containing sorbic acid or sodium nitrite by competitive RT-PCR.
FEMS Microbiol Lett 2004;
232:139-44. [PMID:
15033232 DOI:
10.1016/s0378-1097(04)00043-6]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2003] [Revised: 01/13/2004] [Accepted: 01/14/2004] [Indexed: 11/23/2022] Open
Abstract
Competitive reverse transcription polymerase chain reaction (cRT-PCR) was used to quantify the toxin-encoding mRNA production of a Clostridium botulinum type E strain in media containing either sorbic acid or sodium nitrite. A 10-fold reduction in toxin mRNA production and a 25-fold reduction in the proportion of toxin mRNA to total RNA, was estimated when either 1 mg ml(-1) sorbic acid or 100 microg ml(-1) sodium nitrite were added to the medium at pH 7.0.
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