Figure 6
De-epoxidation index of V-cycle ( a ) and Fv/Fm variations ( b ) during dark-incubation of thalli in a N 2 -atmosphere (anoxic atmosphere) and subsequent recovery in air (re-oxygenation). Control samples continuously maintained in oxygenated conditions are represented with closed symbols. Treated samples are shown as open symbols. Each symbol represents the mean ± SE (n = 5). Asterisks show significant differences between control and treatment (P < 0.05).