Figure 3.
Kinetics of epoxidation in P. tricornutum in LL (40 μmol m−2⋅s−1) after 6-h illumination with HL1. Pigments are normalized to Chl a, because changes in Chl a concentrations within the 45-min LL recovery were negligible. (A) Epoxidation of Dtx to Ddx; (B) epoxidation of Zx via Ax to Vx. Solid lines represent fit to monoexponential decay (first three data points of each pigment were omitted); dashed lines were calculated assuming stoichiometric conversion between pigments of the corresponding xanthophyll cycle.