Institute of Biochemistry, Christian-Albrechts-University Kiel, Kiel, Germany.
Plant Signal Behav. 2012 Mar;7(3):301-5. doi: 10.4161/psb.19007. Epub 2012 Mar 1.
Our recent study reported that maize acetylcholinesterase (AChE) activity in the coleoptile node is enhanced through a post-translational modification response to heat stress and transgenic plants overexpressing maize AChE gene had an elevated heat tolerance, which strongly suggests that maize AChE plays a positive, important role in maize heat tolerance. Here we present (1) maize AChE activity in the mesocotyl also enhances during heat stress and (2) maize AChE mainly localizes in vascular bundles including endodermis and epidermis in coleoptile nodes and mesocotyls of maize seedlings.
我们最近的研究报告指出，玉米乙酰胆碱酯酶（AChE）在 coleoptile 节点中的活性通过对热应激的翻译后修饰反应得到增强，并且过表达玉米 AChE 基因的转基因植物具有更高的耐热性，这强烈表明玉米 AChE 在玉米耐热性中发挥着积极的、重要的作用。在这里，我们提出（1）玉米 AChE 在 mesocotyl 中的活性也在热应激期间增强，（2）玉米 AChE 主要定位于包括玉米幼苗 coleoptile 节点和 mesocotyl 的内皮层和表皮在内的维管束中。
