Main Reaction: Zeaxanthin >> Antheraxanthin

Reference: PubMed ID: 17470058
Authors: North HM, De Almeida A, Boutin JP, Frey A, To A, Botran L, Sotta B, Marion-Poll A
Title: The Arabidopsis ABA-deficient mutant aba4 demonstrates that the major route for stress-induced ABA accumulation is via neoxanthin isomers.
Published: 2007 Jun

Zeaxanthin --> Antheraxanthin