Figure 6From: Arabidopsis AtHB7 and AtHB12evolved divergently to fine tune processes associated with growth and responses to water stressAtHB7 induces stomata closure. (A). Stomatal density was determined by counting pores per area under microscopy in 38-day-old leaves. (B) Stomata’s aperture (μm) was evaluated in three 38-day-old leaves from different individuals per genotype. (C) Stomata’s conductance determined by IRGA and expressed as mol H2O m-2 s-1. (D) Weight loss in detached 38-day-old leaves evaluated every 20 min by weighting and illustrated as the% of the initial weight. Error bars represent SE (A: n = 5 pictures per genotype; B: n = 15 stomatas from three different leaves per genotype; C: n = 4 leaves per genotype); “*”, “a”, “b”, “c” and “d” denote statistical differences obtained with one-way-ANOVA-Tukey’s P < 0.05.Back to article page