Listeria (before and after) (IMAGE) RMIT University Caption Left: Listeria bacteria, alive and with intact cell membranes. Right: The same bacteria after exposure to Plantacyclin B21AG, dead and with the cell membranes destroyed. Credit Dr Elvina Parlindungan Usage Restrictions Credit Dr Elvina Parlindungan License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.