Figure 1.
Response of Super Fifty (SF)-primed and unprimed plants to drought stress. (a) Arabidopsis plants after 11 days of drought stress, at 42 days after germination (DAG). In the absence of SF priming, drought-stressed plants (H2O+drought stress (Dr)) show stress-related symptoms (wilting of most leaves), while drought stress-related symptoms are seemingly absent in SF-primed plants (SF+Dr). Leaves no. 8, 9, and 10, harvested for ion conductivity and relative water content (RWC) measurements—see panels (d,e)—are indicated by white arrows (representative images). (b) Rosette diameter. (c) Number of rosette leaves. Data in (b,c) were obtained for plants at 40 DAG. (d) Ion conductivity in leaves as a measure of membrane damage. (e) Relative water content in leaves. Error bars denote the standard deviation of the mean (SD). Treatments sharing same letters indicate nonsignificant differences, while treatments with different letters indicate significant differences (p < 0.05; one-way ANOVA, Tukey’s multiple comparison test). Dr, drought stress; SF, Super Fifty.