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PaACLB1-B2 silencing accelerates flower senescence in petunia. (A) Flowers of PaACLB1-B2-silenced and control plants. (B) Corollas for trypan blue dyeing. (C, D) Corolla tissues after trypan blue dyeing. (E) Ethylene production in PaACLB1-B2-silenced and control corollas. *P≤0.05. Bars=1 cm in (A) and (B); 0.1 cm in (C); 500 μm in (D).
