Lack of tryptophan-niacin relationship in corn and tobacco.
D006801:Humans; D009525:Niacin / Q000378:metabolism*; D014026:Nicotiana; D014364:Tryptophan / Q000378:metabolism*; D003313:Zea mays
D009525:Niacin; D014364:Tryptophan
CORN; NICOTINIC ACID/metabolism; TOBACCO; TRYPTOPHAN/metabolism