Fig. 11

Proposed mechanisms regulating ripening capacity development during the final stages of pear fruit growth. Transition 1: Fruit develop ripening capacity responsive to ethylene treatment; Transition 2: Fruit develop ripening capacity without the need of ethylene treatment. AP2/EREBP: APETALA 2/ethylene response element binding protein, bHLH: basic helix-loop-helix, bZIP: basic region/leucine zipper, ARF: Auxin response factors, HB: homeobox, C2H2(Zn): Cys₂His₂ Zinc finger; GA: Gibberellin, JA: Jasmonic acid, IAA: Auxin/indole-3-acetic acid; XTH :Xyloglucan endotransglucosylase/hydrolase , PT/PG: pectin lyase/pectate lyase/polygalacturonase, Exp: Expansin