Figure 1From: Protocol: An updated integrated methodology for analysis of metabolites and enzyme activities of ethylene biosynthesisPathway of the ethylene biosynthesis. The ethylene biosynthesis starts from the conversion of S-adenosyl-L-methione (SAM), into 1-aminocyclopropane-1-carboxylic acid (ACC) by the enzyme 1-aminocyclopropane-1-carboxylate synthase (ACS). ACC can then be converted to 1-(malonylamino)cyclopropane-1-carboxylic acid (MACC), by ACC N-Malonyl transferase, or to the end product ethylene, by 1-aminocyclopropane-1-carboxylate oxidase (ACO).Back to article page