title: Polyribosomes and ribosomal sub-units of bacterial protoplasts.
mesh_terms: D001410:Bacillus megaterium / Q000378:metabolism; D001433:Bacteriolysis; D002499:Centrifugation, Density Gradient; D002751:Chlortetracycline; D003609:Dactinomycin; D010710:Phosphates / Q000378:metabolism; D010759:Phosphorus Isotopes; D011523:Protoplasts; D012260:Ribonucleases; D012270:Ribosomes
chemical_list: D010710:Phosphates; D010759:Phosphorus Isotopes; D003609:Dactinomycin; D012260:Ribonucleases; D002751:Chlortetracycline