title: Regulation of nicotine synthesis in tobacco callus tissue.
mesh_terms: D003470:Culture Media; D006540:Herbicides / Q000494:pharmacology; D007211:Indoles / Q000494:pharmacology; D009538:Nicotine / Q000096:biosynthesis*; D010947:Plants, Toxic; D014026:Nicotiana / Q000378:metabolism*
chemical_list: D003470:Culture Media; D006540:Herbicides; D007211:Indoles; D009538:Nicotine