title: Ultrastructural analysis of membrane development during Bacillus thuringiensis sporulation.
mesh_terms: D001413:Bacillus thuringiensis / Q000502:physiology*; D005614:Freeze Fracturing; D008566:Membranes / Q000648:ultrastructure; D008854:Microscopy, Electron; D013171:Spores, Bacterial / Q000254:growth & development / Q000648:ultrastructure*