Table 1.

The group affiliation of L. monocytogenes strains used in experiments

Strain	Source of isolation	Genoserogroup*	bcrABC	cadA1	cadA2	BC**	Cd2+***
475/05	Pork neck	gr IIa	–	–	–	□	□
43/04	Broccoli	gr IIa	–	+	–	□	■
06/09/S	Cold cuts	gr IIa	+	–	+	■	■
2082/03	Smoked salmon	gr IIc	–	–	–	□	□
06/09	Dumplings	gr IIc	–	–	+	□	■
02/07	Smoked blue warehou	gr IVb	–	–	–	□	□
82/04	Raw salad	gr IVb	–	+	–	□	■
16/09	Dumplings	gr IVb	–	–	+	□	■
01/07	Smoked herring	gr IVb	+	–	+	■	■

(+) present; (–) absent

^*gr IIa - (serotypes 1/2a-3a), gr IIc (serotypes 1/2c-3c), and IVb (serotypes 4b-4d-4e);

^**BC - benzalkonium chloride;

^***Cd²⁺ - cadmium cation;

□ - sensitive (growth inhibited on MH+HB medium supplemented with 10 μg/ml benzalkonium chloride and/or 75 μg/ml cadmium chloride);

■ - resistant (confluent growth on MH+HB medium supplemented with 10 μg/ml benzalkonium chloride and/or 75 μg/mL cadmium chloride)