Abstract：
During hypocotyl development, an asymmetric auxin gradient causes differential cell elongation, leading to tissue bending and apical hook formation. Recently, Ma et al. identified a molecular pathway that links auxin with endoreplication and cell size through cell wall integrity sensing, cell wall remodeling, and regulation of cell wall stiffness.
摘要：
在下胚轴发育过程中,不对称的生长素梯度会导致细胞伸长差异，导致组织弯曲和根尖钩形成。最近,Maetal.确定了通过细胞壁完整性感知将生长素与内复制和细胞大小联系起来的分子途径，细胞壁重塑，和细胞壁刚度的调节。
