Cell expansion in roots is crucial for the exploration and exploitation of the soil substrate and the plethora of activities that roots engage in. Expansion requires the coordinated activities of many cell processes. Central to this is the control of ion transport during vacuolar growth, which mediates the increase in cell size and the concomitant production of new wall and membrane at the surface of growing cells. The cytoskeleton plays an important role in growth and the control of growth direction. Evidence is accumulating to show that plant hormones also coordinate cell expansion throughout the plant by controlling the activities of growth-regulating DELLA proteins.

中文翻译：

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根中的细胞膨胀。

根中的细胞膨胀对于探索和利用土壤基质以及根所参与的许多活动至关重要。膨胀需要许多细胞过程的协调活动。对此的核心是控制液泡生长期间的离子转运，该介导介导细胞大小的增加以及在正在生长的细胞表面上新壁和新膜的伴随产生。细胞骨架在生长和控制生长方向中起重要作用。越来越多的证据表明，植物激素还可以通过控制生长调节DELLA蛋白的活性来协调整个植物的细胞膨胀。