The biosynthesis of nicotine in Nicotiana glutinosa from carbon-14 dioxide. Labeling pattern in the pyrrolidine rings.
D002245:Carbon Dioxide / Q000096:biosynthesis; D002247:Carbon Isotopes; D009538:Nicotine / Q000096:biosynthesis*; D009952:Ornithine / Q000378:metabolism; D010944:Plants; D011759:Pyrrolidines / Q000378:metabolism*
D002247:Carbon Isotopes; D011759:Pyrrolidines; D002245:Carbon Dioxide; D009538:Nicotine; D009952:Ornithine