Common mechanistic action of bacteriocins from lactic Acid bacteria.

摘要: The influence of four bacteriocins from lactic acid bacteria on the proton motive force (PMF) sensitive organisms was investigated. Pediocin PA-1 (20 μg/ml) and leuconocin S (48.5 mediated total or major PMF dissipation energized Listeria monocytogenes Scott A cells in a concentration-dependent manner, as has been shown for nisin. Lactacin F (13.5 caused 87% depletion Lactobacillus delbrueckii ATCC 4797 cells, also fashion. energy requirements activity these were determined by using ionophores nigericin valinomycin to carry out partial specific deenergization target organisms. PA-1, S, lactacin acted an energy-independent whereas nisin confirmed be dependent. These results together with published reports other suggest that share common mechanism, PMF.