Fig. 3.

Contents and ratios of esterified xanthophylls in tubes, limbs, and leaves of petunia and calibrachoa. all-E-neo, (all-E)-neoxanthin; all-E-vio, (all-E)-violaxanthin; 9′Z-neo, (9′Z)-neoxanthin; 9Z-vio, (9Z)-violaxanthin; unk, unknown xanthophyll; lut, (all-E)-lutein; zea + ant, (all-E)-zeaxanthin and (all-E)-antheraxanthin; β-caro, (all-E)-β-carotene; unidentified, unidentified carotenoids. Analyses were performed in triplicate; means ± SE are shown. The same letter within a component indicates no significant difference by Tukey’s test (P < 0.05).