Alkaloids as possible intermediaries in plant metabolism.
D002247:Carbon Isotopes; D002854:Chromatography, Paper; D007202:Indicators and Reagents; D000432:Methanol; D009020:Morphine / Q000378:metabolism*; D010207:Papaver / Q000378:metabolism*; D010946:Plants, Medicinal; D012639:Seeds; D014443:Tyrosine
D002247:Carbon Isotopes; D007202:Indicators and Reagents; D014443:Tyrosine; D009020:Morphine; D000432:Methanol