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G蛋白结合受体 COLD1 在发芽期间促进玉米的冷却耐受性

Yu Zhou¹, Hong Zhang¹, Simeng Zhang¹

¹Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.

International journal of biological macromolecules

|September 16, 2023

概括

一个新发现的玉米基因,ZmCOLD1,增强了冷却耐受性. 这一发现通过了解玉米的适应性,为改善寒冷条件下的作物产量提供了新的策略.

科学领域:

植物遗传学植物遗传学
农作物科学农作物科学
分子生物学分子生物学

背景情况:

玉米 (Zea mays L.) 的产量和地理范围受到低温的限制.
提高冷却耐受性对于改善玉米生产至关重要.

研究的目的:

为了克隆和描述玉米冷却耐受性基因,ZmCOLD1.1.
研究ZmCOLD1在玉米适应低温中的作用.

主要方法:

基因克隆和ZmCOLD1.1的表征.
在ZmCOLD1.1.中对单核酸多态 (SNP),SNP2738的分析.
基因过度表达和淘汰实验.
生物化学测定测量离子流入和激素含量.
蛋白质与蛋白质相互作用的研究.

主要成果:

ZmCOLD1编码了一个G蛋白结合受体,该受体定位在等离子体膜和内等离子体网络上.
在ZmCOLD1中的SNP2738赋予了冷却耐受性,并参与了玉米的适应.
过度表达ZmCOLD1^Hap11增强了冷却耐受性;ZmCOLD1敲击增加了灵敏度.
在寒冷压力下,ZmCOLD1会影响Ca2+的流入,酸,吉伯酸和-3-酸水平.
ZmCOLD1与ZmCT2相互作用,后者与ZmLanCL相互作用,形成一个冷却耐受性信号通路.

结论:

ZmCOLD1是玉米冷却耐受性信号通路的关键组成部分.
ZmCOLD1介导的途径是由酸和光合作用触发的.
了解ZmCOLD1为提高作物的冷却耐受性提供了新的策略.

关键词:

制冷容忍度制冷耐受度 G蛋白结合受体的受体是G蛋白结合受体的受体.玉米玉米玉米是一种

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