The influence of stress factors on selected phenotypic and genotypic features of Listeria monocytogenes – a pilot study

Table 6 Results of the MIC value assessment of selected antibiotics for strain 55 C

Experiment variant	Penicillin [μg/ml]	Ampicillin [μg/ml]	Meropenem [μg/ml]	Erythromycin [μg/ml]	Co-trimoxazole [μg/ml]
basic variant (no stress)	0.19	0.19	0.064	0.25	0.032
heat stress	0.125	0.125	0.047	0.125	0.023
cold stress	not marked
osmotic stress	0.19	0.125	0.094	0.25	0.023
acid stress	0.19	0.19	0.094	0.25	0.047
alkali stress	0.125	0.19	0.094	0.50	0.032
frozen stress	0.125	0.125	0.094	0.25	0.032

marked green - a decrease in relation to the basic variant; marked red - increase in relation to the basic variant; marked white - no changes

ISSN: 1471-2180