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Carotenoid Accumulation in Arabidopsis Mutants.
(A) Lutein levels are expressed as a percentage of the total carotenoid pool relative to the wild type. Data are the average and se of three to six biological replicates of leaf tissues from 3- to 5-week-old plants.
(B) HPLC chromatogram of etiolated tissues from the wild type, ccr1, and ccr2. N, neoxanthin; V, violaxanthin; L, lutein; cis-L, cis-lycopene isomers; cis-N, cis-neurosporene isomers; ζ-C, ζ-carotene.
