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. 2020 Mar 31;11:367. doi: 10.3389/fpls.2020.00367

FIGURE 1.

FIGURE 1

The expression pattern of DEAR4. (A) The expression pattern of DEAR4 at different developmental stages. YL, young leaves of 2-week old seedlings; NS, fully expanded mature leaves without senescence symptoms; ES, early senescent leaves, with <25% leaf area yellowing; LS, late senescent leaves, with >60% leaf area yellowing. (B) The DEAR4 expression pattern in different parts of a senescing leaf; B, Base; M, Middle; T, Tip. (C) GUS expression detection in different stage rosette leaf of proDEAR4::GUS transgenic plants. Top Leaf, before GUS staining; bottom leaf, after GUS staining. (D) GUS staining results in different parts of a senescing leaf. (E) Effects of plant hormones on DEAR4 expression. (F) Effects of different stress conditions on DEAR4 expression. The bars are standard deviations (SD) of three biological replicates. The one and double asterisks indicate significant difference to control at the levels of 0.01 < P < 0.05 and P < 0.01 using student’s t-test, respectively.