Role of Heterotrimeric G-Proteins in Improving Abiotic Stress Tolerance of Crop Plants
Role of Heterotrimeric G-Proteins in Improving Abiotic Stress Tolerance of Crop Plants
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DOI：
10.1007/s00344-023-10965-6
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发表时间：
2023-03
影响因子：
4.8
通讯作者：
Parinita Majumdar;María Daniela Torres Rodríguez;S. Pandey
中科院分区：
文献类型：
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作者：
Parinita Majumdar;María Daniela Torres Rodríguez;S. Pandey
作为固着生物，植物不断地暴露于各种环境胁迫下，这些胁迫对其生长和发育具有不利影响，导致全球主要作物产量损失。为了科普不利条件，植物已经发展了几种适应机制。彻底了解这些机制对于未来产生植物至关重要。异源三聚体G蛋白复合物由Gα、Gβ和Gγ亚基组成，参与多种细胞信号转导途径的调控，在植物逆境胁迫应答中具有多种作用。该复合物有两个功能实体，GTP结合的Gα亚基和Gβγ二聚体，两者都可以通过与其他蛋白质相互作用激活各种信号网络。G蛋白参与了植物对干旱、盐度、极端温度、重金属、臭氧和UV-B辐射的反应。由于它们的多功能性和由它们调节的过程的数量，G蛋白已经成为产生耐胁迫作物的关键目标。在这篇综述中，我们提供了一个概述的G-蛋白在非生物胁迫耐受性的作用的现有知识，从模式植物拟南芥，在这些过程中最广泛的研究和从其他农业相关的作物，在那里他们的潜力是实现人类使用的例子。
As sessile organisms, plants are constantly exposed to a variety of environmental stresses that have detrimental effects on their growth and development, leading to major crop yield losses worldwide. To cope with adverse conditions, plants have developed several adaptive mechanisms. A thorough understanding of these mechanisms is critical to generate plants for the future. The heterotrimeric G-protein complex, composed of Gα, Gβ, and Gγ subunits, participates in the regulation of diverse cellular signaling pathways and has multiple roles in regulating plant stress responses. The complex has two functional entities, the GTP-bound Gα subunit and the Gβγ dimer, both of which by interacting with additional proteins can activate various signaling networks. The involvement of G-proteins has been shown in plants’ response to drought, salinity, extreme temperatures, heavy metals, ozone, and UV-B radiation. Due to their versatility and the number of processes modulated by them, G-proteins have emerged as key targets for generating stress-tolerant crops. In this review, we provide an overview of the current knowledge of the roles of G-proteins in abiotic stress tolerance, with examples from the model plantArabidopsis thaliana, where these processes are most widely studied and from additional agriculturally relevant crops, where their potential is realized for human usage.