Mutation of Arabidopsis Copper-Containing Amine Oxidase Gene Alters Polyamines, Reduces Gibberellin Content and Affects Development.

Polyamines (PAs) are essential metabolites in plants performing multiple functions during growth and development. Copper-containing amine oxidases (CuAOs) catalyse the catabolism of PAs and in are encoded by a gene family. Two mutants of one gene family member, , showed delayed seed germination, leaf emergence, and flowering time.