Figure 2.

Effects of exogenous zeaxanthin on stomatal morphology of pepper leaves under low temperature combined with low-light stress. CK: the pepper was sprayed with distilled water under normal conditions, CK + Z: the pepper was sprayed with zeaxanthin under normal conditions, LL: the pepper was sprayed with distilled water under low temperature combined with low-light stress, and LL + Z: the pepper was sprayed with zeaxanthin under low temperature combined with low-light stress. (A–D) ×1000 and (A1–D1) ×3000 represent stomatal morphology of pepper leaves after 24 h treatment, and (a–d) ×1000 and (a1–d1) ×3000 represent stomatal morphology of pepper leaves after 48 h treatment.