Department of Biological Sciences, College of Arts and Sciences, University of North Texas, 1155 Union Circle #305220, Denton, TX 76203, USA.
Trends Biochem Sci. 2012 Mar;37(3):118-25. doi: 10.1016/j.tibs.2011.11.007. Epub 2012 Jan 9.
In plants, the heat stress response (HSR) is highly conserved and involves multiple pathways, regulatory networks and cellular compartments. At least four putative sensors have recently been proposed to trigger the HSR. They include a plasma membrane channel that initiates an inward calcium flux, a histone sensor in the nucleus, and two unfolded protein sensors in the endoplasmic reticulum and the cytosol. Each of these putative sensors is thought to activate a similar set of HSR genes leading to enhanced thermotolerance, but the relationship between the different pathways and their hierarchical order is unclear. In this review, we explore the possible involvement of different thermosensors in the plant response to warming and heat stress.
在植物中，热应激响应（HSR）高度保守，涉及多个途径、调控网络和细胞区室。最近至少提出了四个假定的传感器来触发 HSR。它们包括启动内向钙流的质膜通道、核中的组蛋白传感器以及内质网和细胞质中的两个未折叠蛋白传感器。这些假定的传感器中的每一个都被认为激活了一组类似的 HSR 基因，从而增强了耐热性，但不同途径之间的关系及其层次顺序尚不清楚。在这篇综述中，我们探讨了不同热传感器在植物对变暖及热应激响应中的可能参与。
