TABLE 3.

MICs for nisin and other bacteriocins of various L. lactis derivatives used in this studya

L. lactis strain/antimicrobialMICs (μg/liter) for:
NisinMersacidinVancomycinBacitracin
IL1403402,5006004,000
IL1403 Nisr3,0002,5006001,000
NZ9000b40-c--
NZ9000 (pNZ8048) with induction40---
NZ9000 (pJK1) with induction500---
NZ9000 (pFaB)320---
NZ9000 (pFaBC)320---
NZ9000 (ΔgalAMK)272,500--
NZ9000 (ΔgalAMK, Nisr)400---
MG136340---
MG1363 (Nisr)3,000---
MG1363 (ΔdltD)82,500--
MG1363 (ΔdltD, Nisr)400---
MG1363 (ΔahrC)82,500--
MG1363 (ΔahrC, Nisr)200---
  • a Standard errors never exceeded 10% of the given value.

  • b Strain L. lactis NZ9000 (MG1363::NisRK) is an isogenic derivative of L. lactis MG1363.

  • c -, not determined.