Fig. 2.

Identification and characterization of two unknown peaks in lut5-1. (Left) HPLC analyses (440-nm absorption) of leaf extracts of the indicated genotypes. N, neoxanthin; V, violaxanthin; A, antheraxanthin; L, lutein; Z, zeaxanthin; chl a, chlorophyll a; chl b, chlorophyll b; zei, zeinoxanthin; β-car, β-carotene. (Right) An overlay of sections of the lut5-1 (black) and lut1-4 (gray) HPLC chromatograms containing unknown peaks 1 and 2 and UV-visible absorption spectra of zeinoxanthin, α-carotene, and unknown peaks 1 and 2.