Figure 2

Performance of camta1 plants under drought stress in soil. Phenotypic variation of the plants under drought stress. (A) The Col-0, camta1-2 and camta1-3 were grown for 3 weeks under regular water regime followed by withholding water for 14 days, and then re-watered for 3 days. (B) Quantitative analysis of the survival rate of the Col-0, camta1-2 and camta1-3. (C) The efficiency of photosystem II (Fv/Fm ratio) in the leaves of plants after 14 days of drought stress. (D) The relative water content (RWC) in the leaves of plants under drought stress. (E) Estimation of water use efficiency (WUE) of Col-0, camta1-2 and camta1-3 by carbon isotope discrimination ratio (CID). Error bars indicates Standard deviation SD (n = 20) and asterisk indicates significantly different from values of Col-0 at P < 0.05 by student’s t test.