FIGURE 4.

Comparison of the ν₃ region of the qE-associated Raman spectrum (difference spectrum of light-treated-minus-dark recovery) induced by 528.7 nm excitation in Arabidopsis leaves from wild type and L17 treated with DTT. The ν₃ region of the Raman spectra induced by 528.7 nm excitation of isolated violaxanthin and lutein dissolved in pyridine and the in vivo violaxanthin spectrum induced by 488.0 nm excitation (difference spectrum of wild-type dark adapted-minus-dark recovery leaves) are shown for comparison. rel., relative.