Kesten Christopher, Menna Alexandra, Sánchez-Rodríguez Clara
Department of Biology, Eidgenössiche Technische Hochschule Zurich, 8092 Zurich, Switzerland.
Department of Biology, Eidgenössiche Technische Hochschule Zurich, 8092 Zurich, Switzerland.
Curr Opin Plant Biol. 2017 Dec;40:106-113. doi: 10.1016/j.pbi.2017.08.010. Epub 2017 Sep 9.
The cell wall is a complex polysaccharide network that provides stability and protection to the plant and is one of the first layers of biotic and abiotic stimuli perception. A controlled remodeling of the primary cell wall is essential for the plant to adapt its growth to environmental stresses. Cellulose, the main component of plant cell walls is synthesized by plasma membrane-localized cellulose synthases moving along cortical microtubule tracks. Recent advancements demonstrate a tight regulation of cellulose synthesis at the primary cell wall by phytohormone networks. Stress-induced perturbations at the cell wall that modify cellulose synthesis and microtubule arrangement activate similar phytohormone-based stress response pathways. The integration of stress perception at the primary cell wall and downstream responses are likely to be tightly regulated by phytohormone signaling pathways in the context of cellulose synthesis and microtubule arrangement.
细胞壁是一个复杂的多糖网络，为植物提供稳定性和保护，并且是生物和非生物刺激感知的第一层。对初生细胞壁进行可控的重塑对于植物使其生长适应环境胁迫至关重要。纤维素是植物细胞壁的主要成分，由沿着皮质微管轨道移动的质膜定位的纤维素合酶合成。最近的进展表明，植物激素网络对初生细胞壁的纤维素合成有严格的调控。细胞壁上由应激诱导的扰动会改变纤维素合成和微管排列，从而激活类似的基于植物激素的应激反应途径。在纤维素合成和微管排列的背景下，初生细胞壁上的应激感知与下游反应的整合可能受到植物激素信号通路的严格调控。
