Salmonella wild type and mutant baeR in LB and tungstate

Transcriptional profiling of Salmonella Typhimurium SL1344 wild type and deleted of the response regulator encoding gene baeR grown to OD600=1 in LB alone or in LB supplemented with 20mM of Sodium Tungstate. The goal is to determine Salmonella response to tungstate and to define the BaeR regulated genes in this conditions. 4 differents conditions tested, the reference on each hybridisation is the chromosomique DNA of the wild type strain. 3 replicates for the wild type on LB, 3 replicates for the baeR on LB, 3 replicates for the wild type on LB+ tungstate and 5 replicates for baeR on LB+tungstate.