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absETR (mol e− g−1 chl a h−1) in HC- and LC-grown cells as a function of incubation time. A, absETR under HC (A) and LC (B) conditions with constant PAR of 276 μmol photons m−2 s−1. C and D, absETR under fluctuating radiation for the HC (C) and LC (D) cells at 40 min per cycle (Fig. 3). Vertical lines represent sd of triplicate incubations.
