title: Ammonium ion suppresses the biosynthesis of tylosin aglycone by interference with valine catabolism in Streptomyces fradiae.
mesh_terms: D000645:Ammonium Sulfate / Q000633:toxicity*; D007700:Kinetics; D007933:Leucomycins / Q000096:biosynthesis*; D013302:Streptomyces / Q000254:growth & development / Q000378:metabolism*; D015645:Tylosin / Q000031:analogs & derivatives*; D014633:Valine / Q000378:metabolism*
chemical_list: D007933:Leucomycins; C027411:protylonolide; D014633:Valine; D000645:Ammonium Sulfate; D015645:Tylosin