May be involved in carotenoid sequestration within chromoplasts. Expressed in corollas. Not detected in fruits, stems, leaves, and roots. Expressed during flower development, just before anthesis. Undetectable 24 hours after anthesis. Up-regulated by gibberellins within 20 minutes after treatment and down-regulated by abscisic acid and ethylene. Belongs to the PAP/fibrillin family.