TABLE 3.

Immunity and cross-immunity by bacteriocin-associated Abi genes

BacteriocinMIC (AU) for straina
965(pMG36e)965(pSkkI)965(pPlnI)965(pPlnLR)
Sakacin 23K1>256162
Plantaricin EF1>2>21
Plantaricin JK125664>1,024
  • a One arbitrary unit (AU) was defined as the minimum amount of bacteriocin required to produce 50% growth inhibition of L. plantarum 965(pMG36e) in a 200-μl microtiter plate. For the synthesized peptides plantaricins EF and JK, 1 AU corresponds to concentrations of 0.625 ng μl−1 and 1.22 pg μl−1, respectively.