Fig. 4. PvSL1 plays a role in repairing photodamage.

a Phenotypes of Dalong1 and pvsl1 plants grown in an incubator under 68–112 μmol·m⁻²·s⁻¹ light conditions. Higher light led to more chlorosis in pvsl1 leaves. b Time-course (hours) analysis of the rate of PSII damage. Pvsl1 and Dalong1 seedlings were initially grown under LD (25 μmol·m⁻²·s⁻¹ at 22 °C) for 10 days before being subjected to photoinhibition conditions (100 μmol·m⁻²·s⁻¹ at 18 °C, continuous light). PSII activity (Fv/Fm) was determined at the indicated time points. At least 10 seedlings per genotype were used for each measurement. Error bars indicate SD. c Trypan blue staining showed that more leaf cells were dead in pvsl1. Bars represent 1 cm