An atomic force microscopy study of Galleria mellonella apolipophorin III effect on bacteria

► G. mellonella apolipophorin III causes perturbations in the structure of bacterial cell envelope. ► ApoLp-III and cecropin B cause dissimilar alterations of bacterial cell surface. ► Cell surface of M. luteus, non-sensitive to apoLp-III bacteria, is almost unaffected by apoLp-III.