Figure 8.

Scheme summarizing the interpretation of the results. Chilling causes an initial decrease of L_o in both genotypes. After 3 d at 5°C, the tolerant genotype recovers its L_o thanks to the increase in aquaporin abundance and phosphorylation and to the maintenance of membrane integrity. On the contrary, the sensitive genotype does not recover its L_o because of membrane damage caused by oxidative stress. The tolerant genotype can cope with the oxidative stress, but the sensitive genotype cannot.