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© Institut Pasteur
Spirochète : bactérie hélicoïdale, flexible et ondulante de longueur variable, non colorable par la coloration de Gram, très mobile (endoflagelles). Trois familles : Spirochaetaceae, Leptospiraceae, et Brachyspiraceae. Principaux genres pathogènes pour l'homme : Borrelia (Borrelia burgdorferi cause de la maladie de Lyme), Treponema (Treponema pallidum cause de la syphillis), Leptospira (Leptospira interrogans serovar icterohaemorrhagiae cause de la maladie de Weil). Image colorisée.
Publication : Journal of bacteriology

Random insertional mutagenesis of Leptospira interrogans, the agent of leptospirosis, using a mariner transposon

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Journal of bacteriology - 01 May 2005

Bourhy P, Louvel H, Saint Girons I, Picardeau M

Link to Pubmed [PMID] – 15838053

J. Bacteriol. 2005 May;187(9):3255-8

The recent availability of the complete genome sequences of Leptospira interrogans, the agent of leptospirosis, has allowed the identification of several putative virulence factors. However, to our knowledge, attempts to carry out gene transfer in pathogenic Leptospira spp. have failed so far. In this study, we show that the Himar1 mariner transposon permits random mutagenesis in the pathogen L. interrogans. We have identified genes that have been interrupted by Himar1 insertion in 35 L. interrogans mutants. This approach of transposon mutagenesis will be useful for understanding the spirochetal physiology and the pathogenic mechanisms of Leptospira, which remain largely unknown.

http://www.ncbi.nlm.nih.gov/pubmed/15838053