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Table 1 Mean fold changes (± standard error of the mean) for genes within each functional gene group following exposure to either chlortetracycline at 32 µg/ml or florfenicol at 16 µg/ml for 30 min

From: Chlortetracycline and florfenicol induce expression of genes associated with pathogenicity in multidrug-resistant Salmonella enterica serovar Typhimurium

Gene group Chlortetracycline Florfenicol
530 1306 1434 5317 530 1306 1434 5317
Attachment 4.8 ± 0.7 5.6 ± 0.9 13.2 ± 2.4 10.6 ± 1.9 4.3 ± 0.5 3.9 ± 0.5 7.1 ± 0.8 3.8 ± 0.3
Efflux 1.9 ± 0.9 1.1 ± 0.9 3.2 ± 1.5 2.8 ± 1.7 1.6 ± 0.7 0.7 ± 0.6 1.5 ± 0.8 0.9 ± 0.7
Motility − 10.3 ± 1.4 − 7.5 ± 1.0 − 10.6 ± 1.4 − 9.2 ± 1.0 − 10.9 ± 1.4 − 7.9 ± 1.1 − 9.3 ± 1.3 − 4.2 ± 0.4
SOS response 0.6 ± 0.3 0.8 ± 0.4 1.0 ± 0.4 1.2 ± 0.5 0.3 ± 0.4 0.6 ± 0.4 0.5 ± 0.4 0.6 ± 0.4
SPI-1 1.4 ± 0.4 2.3 ± 0.4 13.7 ± 1.9 10.9 ± 1.1 0.1 ± 0.5 0.5 ± 0.4 6.5 ± 0.9 4.5 ± 0.5
SPI-2 5.4 ± 0.8 5.6 ± 1.0 16.7 ± 3.3 12.3 ± 2.3 3.6 ± 0.7 4.3 ± 0.7 9.6 ± 2.0 4.5 ± 0.7
SPI-3 15.8 ± 11.9 7.8 ± 4.0 23.6 ± 17.8 23.1 ± 15.9 9.9 ± 7.4 3.4 ± 1.8 11.9 ± 8.1 11.5 ± 8.5
SPI-4 − 0.2 ± 0.7 0.7 ± 0.7 14.6 ± 5.9 14.3 ± 4.0 − 1.3 ± 1.1 − 3.0 ± 1.5 2.0 ± 0.3 1.5 ± 0.1
SPI-5 3.6 ± 2.9 2.2 ± 3.6 20.2 ± 12.9 9.8 ± 8.2 2.9 ± 3.0 1.2 ± 3.2 6.9 ± 5.5 2.6 ± 1.9