Delphine Dufour Dental Research Institute, Faculty of Dentistry, University of Toronto, Canada
1 protocol

Céline M. Lévesque
  • Dental Research Institute, Faculty of Dentistry, University of Toronto, Canada
  • 1 Author merit


Ph.D. in Microbiology, Department of Biochemistry and Microbiology, Université Laval, Québec City, QC, Canada, 2002

Current position

Associate Professor and Acting Chair, Discipline of Oral Microbiology, Faculty of Dentistry, University of Toronto

Canada Research Chair in Oral Microbial Genetics

Publications (since 2008)

  1. Dufour, D. and Levesque, C. M. (2013). Bacterial behaviors associated with the quorum-sensing peptide pheromone ('alarmone') in streptococci. Future Microbiol 8(5): 593-605.
  2. Koyanagi, S. and Levesque, C. M. (2013). Characterization of a Streptococcus mutans intergenic region containing a small toxic peptide and its cis-encoded antisense small RNA antitoxin. PLoS ONE 8(1): e54291.
  3. Dufour, D. and Levesque, C. M. (2013). Cell death of Streptococcus mutans induced by a quorum-sensing peptide occurs via a conserved streptococcal autolysin. J Bacteriol 195(1): 105-114.
  4. Mankovskaia, A., Levesque, C. M. and Prakki, A. (2013). Catechin-incorporated dental copolymers inhibit growth of Streptococcus mutans. J Appl Oral Sci 21(2): 203-207.
  5. Leung, V. and Levesque, C. M. (2012). A stress-inducible quorum-sensing peptide mediates the formation of persister cells with noninherited multidrug tolerance. J Bacteriol 194(9): 2265-2274.
  6. Syed, M. A. and Levesque, C. M. (2012). Chromosomal bacterial type II toxin-antitoxin systems. Can J Microbiol 58(5): 553-562.
  7. Roth, K. A., Friedman, S., Levesque, C. M., Basrani, B. R. and Finer, Y. (2012). Microbial biofilm proliferation within sealer-root dentin interfaces is affected by sealer type and aging period. J Endod 38(9): 1253-1256.
  8. Chingcuanco, F., Yu, Y., Kus, J. V., Que, L., Lackraj, T., Levesque, C. M. and Barnett Foster, D. (2012). Identification of a novel adhesin involved in acid-induced adhesion of enterohaemorrhagic Escherichia coli O157 : H7. Microbiology 158(Pt 9): 2399-2407.
  9. Kim, J., Senadheera, D. B., Levesque, C. M. and Cvitkovitch, D. G. (2012). TcyR regulates L-cystine uptake via the TcyABC transporter in Streptococcus mutans. FEMS Microbiol Lett 328(2): 114-121.
  10. Dufour, D., Cordova, M., Cvitkovitch, D. G. and Levesque, C. M. (2011). Regulation of the competence pathway as a novel role associated with a streptococcal bacteriocin. J Bacteriol 193(23): 6552-6559.
  11. Syed, M. A., Koyanagi, S., Sharma, E., Jobin, M. C., Yakunin, A. F. and Levesque, C. M. (2011). The chromosomal mazEF locus of Streptococcus mutans encodes a functional type II toxin-antitoxin addiction system. J Bacteriol 193(5): 1122-1130.
  12. Dufour, D., Leung, V. and Lévesque, C. M. (2010). Bacterial biofilm: structure, function, and antimicrobial resistance. Endodontic Topics 22(1): 2-16.
  13. Perry, J. A., Cvitkovitch, D. G. and Levesque, C. M. (2009). Cell death in Streptococcus mutans biofilms: a link between CSP and extracellular DNA. FEMS Microbiol Lett 299(2): 261-266.
  14. Perry, J. A., Jones, M. B., Peterson, S. N., Cvitkovitch, D. G. and Levesque, C. M. (2009). Peptide alarmone signalling triggers an auto-active bacteriocin necessary for genetic competence. Mol Microbiol 72(4): 905-917.
  15. Suntharalingam, P., Senadheera, M. D., Mair, R. W., Levesque, C. M. and Cvitkovitch, D. G. (2009). The LiaFSR system regulates the cell envelope stress response in Streptococcus mutans. J Bacteriol 191(9): 2973-2984.
  16. Perry, J. A., Levesque, C. M., Suntharaligam, P., Mair, R. W., Bu, M., Cline, R. T., Peterson, S. N. and Cvitkovitch, D. G. (2008). Involvement of Streptococcus mutans regulator RR11 in oxidative stress response during biofilm growth and in the development of genetic competence. Lett Appl Microbiol 47(5): 439-444.
  17. Korithoski, B., Levesque, C. M. and Cvitkovitch, D. G. (2008). The involvement of the pyruvate dehydrogenase E1alpha subunit, in Streptococcus mutans acid tolerance. FEMS Microbiol Lett 289(1): 13-19.
  18. Sztajer, H., Lemme, A., Vilchez, R., Schulz, S., Geffers, R., Yip, C. Y., Levesque, C. M., Cvitkovitch, D. G. and Wagner-Dobler, I. (2008). Autoinducer-2-regulated genes in Streptococcus mutans UA159 and global metabolic effect of the luxS mutation. J Bacteriol 190(1): 401-415.
1 Protocol published
Zymogram Assay for the Detection of Peptidoglycan Hydrolases in Streptococcus mutans
Authors:  Delphine Dufour and Céline M. Lévesque, date: 08/20/2013, view: 9885, Q&A: 1
Peptidoglycan hydrolases or autolysins are enzymes capable of cleaving covalent bonds in bacterial peptidoglycan cell wall layer. They can participate in the cell division process, in the release of turnover products from peptidoglycan during cell ...
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