Invagination of cytoplasmic membrane as the initial event of cross wall formation in actinomycetes.
D002462:Cell Membrane / Q000648:ultrastructure; D002473:Cell Wall / Q000648:ultrastructure; D008854:Microscopy, Electron; D013171:Spores, Bacterial / Q000648:ultrastructure; D013302:Streptomyces / Q000648:ultrastructure*