Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Vlaams Instituut voor Biotechnologie (VIB) Center for Plant Systems Biology, 9052 Ghent, Belgium.
Institut National de Recherche pour l'Agriculture, l'Alimentation, et l'Environnement (INRAE), Biologie du Fruit et Pathologie (BFP), Université de Bordeaux, 33882 Villenave d'Ornon, France.
Trends Plant Sci. 2021 Mar;26(3):220-236. doi: 10.1016/j.tplants.2020.10.012. Epub 2020 Dec 10.
A key strategy to increase plant productivity is to improve intrinsic organ growth. Some of the regulatory networks underlying organ growth and development, as well as the interconnections between these networks, are highly conserved. An example of such a growth-regulatory module with a highly conserved role in final organ size and shape determination in eudicot species is the PEAPOD (PPD)/KINASE-INDUCIBLE DOMAIN INTERACTING (KIX)/STERILE APETALA (SAP) module. We review the proteins constituting the PPD pathway and their roles in different plant developmental processes, and explore options for future research. We also speculate on strategies to exploit knowledge about the PPD pathway for targeted yield improvement to engineer crop traits of agronomic interest, such as leaf, fruit, and seed size.
提高植物生产力的一个关键策略是改善内在器官的生长。器官生长和发育的一些调控网络以及这些网络之间的相互联系具有高度的保守性。在真双子叶植物物种中，最终器官大小和形状决定的具有高度保守作用的这样一个生长调控模块的例子是豆荚（PPD）/激酶诱导结构域相互作用（KIX）/无菌拟南芥（SAP）模块。我们回顾了构成 PPD 途径的蛋白质及其在不同植物发育过程中的作用，并探讨了未来研究的选择。我们还推测了利用 PPD 途径知识来有针对性地提高产量以设计具有农业意义的作物性状（如叶片、果实和种子大小）的策略。
