Wu S, Yu PL, Wheeler D, Flint S. Transcriptomic study on persistence and survival of Listeria monocytogenes following lethal treatment with nisin.
J Glob Antimicrob Resist 2018;
15:25-31. [PMID:
29933119 DOI:
10.1016/j.jgar.2018.06.003]
[Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/01/2018] [Accepted: 06/11/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES
The aim of this study was to determine gene expression associated with the persistence of a Listeria monocytogenes stationary-phase population when facing lethal nisin treatment.
METHODS
RNA-Seq analysis was used for gene expression profiling of persister cells in nutrient-rich medium (persister TN) compared with untreated cells (non-persister). The results were confirmed using reverse transcription quantitative PCR (RT-qPCR).
RESULTS
Functional genes associated with the persister population were identified in multiple systems, such as heat-shock-related stress response, cell wall synthesis, ATP-binding cassette (ABC) transport system, phosphotransferase system (PTS) and SOS/DNA repair.
CONCLUSIONS
This study pointed to genetic regulation of persister cells exposed to lethal nisin concentrations and provides some insight into possible mechanisms of impeding bacterial persistence.
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