Figure 8.

SlOFP20 overexpression delays leaf senescence. (A) Phenotype of delayed leaf senescence in SlOFP20-OE lines. (B) The expression levels of SlOFP20 in the leaves at different developmental stages: young leaves (YL), mature leaves (ML), senescent leaves (SL), and late senescent leaves (LS). (C, D) Comparison of H₂O₂ and MDA Contents in the senescent leaves of WT and SlOFP20-OE plants. (F–H) Comparison of transcript levels of SOD, POD, and CAT2 in the senescent leaves of WT and transgenic plants. (I–K). Comparison of SOD, POD, and CAT activities in the senescent leaves of WT and transgenic plants. (L–N) Expression of senescence-related genes (SAG12, RAV1, and WRKY53) in the senescent leaves of WT and transgenic plants. Each value represents the mean ± SE of three biological replicates. Asterisks indicate a significant difference (P < 0.05).