Figure 5
Chlorophyll content, photosynthesis rate and senescence time are regulated by AtHB7 and AtHB12 in mature plants. (A) Total chlorophyll content quantified in 45-day-old plants leaves. Extracts were prepared from green rosette leaves of plants grown under standard conditions during 45-days. (B) Photosynthetic rate quantified with IRGA in leaves of 45-day-old plants. (C) Senescence degree as the percentage of yellow area in the rosette quantified after scanning with ImageJ. Illustrative photographs of 48-day-old rosettes of each genotype. Error bars represent SE (n = 5); “*” denotes statistical differences obtained with one-way-ANOVA-Tukey’s P < 0.05.