1. Polymyxin E Induces Rapid Paenibacillus polymyxa Death by Damaging Cell Membrane while Ca2+ Can Protect Cells from Damage Qin, Wangrong; Yu, Zhiliang; Cai, Yuanning; Lin, Jianxun; Qiu, Juanping 2015 Articles Gram-positive bacteriaCell membranesPolymyxinMolecular biologyCytologyBiochemistry