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. 2016 Dec 5;113(51):14864–14869. doi: 10.1073/pnas.1607695114

Fig. S5.

Fig. S5.

UV-B induces violaxanthin accumulation. The xanthophyll pigments were analyzed in WT 137C in growth conditions (0; n = 3), after 6 h high light (HL; n = 2) and in cells exposed to UV-B for 6 h (+UV-B; n = 3) or not exposed (−UV-B; n = 3). An additional sample was collected at the end of the 5-min high-light period used for the measurement of qE after 6-h exposure to UV-B (+ UV-B + 5 min HL). (A) Relative violaxanthin content (normalized to β-carotene). (B) Deepoxidation ratio [DES; evaluated as zeaxanthin/(zeaxanthin + violaxanthin); antheraxanthin levels were negligible]. (C) Relative violaxanthin content, with or without UV-B exposure, in the WT and in two biological replicates (A and B) of the npq4 lhcsr1 double mutant.