title: Bacitracin increases size of parasporal crystals and spores in Bacillus thuringiensis.
abstract: The effect of bacitracin on Bacillus thuringiensis is described. When added after the end of the exponential phase, it produces a marked increase in the size of spores and parasporal crystals. The cultures to which the antibiotic was added are able to produce more crystal proteins than non-treated cultures. The protein composition of crystals from bacitracin-treated cultures is the same as that of crystals purified from control cultures.
mesh_terms: D001413:Bacillus thuringiensis / Q000254:growth & development / Q000378:metabolism* / Q000502:physiology; D000083722:Bacillus thuringiensis Toxins; D001414:Bacitracin / Q000494:pharmacology*; D001426:Bacterial Proteins / Q000096:biosynthesis* / Q000378:metabolism; D001427:Bacterial Toxins; D004591:Electrophoresis, Polyacrylamide Gel; D004731:Endotoxins; D006460:Hemolysin Proteins; D008358:Mannose / Q000378:metabolism; D008970:Molecular Weight; D013171:Spores, Bacterial / Q000187:drug effects / Q000378:metabolism; D013997:Time Factors
chemical_list: D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D001427:Bacterial Toxins; D004731:Endotoxins; D006460:Hemolysin Proteins; C030956:insecticidal crystal protein, Bacillus Thuringiensis; D001414:Bacitracin; D008358:Mannose