Main Reaction: Arginine>> Putrescine

Reference: PubMed ID: 21232776
Authors: DeBoer KD, Dalton HL, Edward FJ, Hamill JD
Title: RNAi-mediated down-regulation of ornithine decarboxylase (ODC) leads to reduced nicotine and increased anatabine levels in transgenic Nicotiana tabacum L.
Published: 2011 Apr

Arginine --> Putrescine