Fig. 4.
Excitation dissipation responses of H. ostrearia strain Île de Ré (H. ost. IdR), H. ostrearia strain Baie de Bourgneuf (H. ost. BdB), and H. silbo sp. nov. ined., during non-sequential rapid light curves (mean ± SE, n = 3). Non-regulated (Y[NO], a and c) and regulated (Y[NPQ], b and d) excitation dissipation components are shown, for untreated samples (a and b), and samples treated with DTT (c and d). Background trace (light blue line) shows the respective light levels (middle axes, PAR µmol photons m−2 s−1) applied at each light step