摘要
植物作为固着型的生物必须承受并处理一定程度下的非生物胁迫,如土壤盐渍、干旱和极端温度等,植物主要是基于消耗能量的蛋白激酶感知这些胁迫信号,经胁迫信号传导网络传导到细胞内并重新编码信号网络组成部分的表达与活性,从而达到适应胁迫环境的目的。胁迫条件下产生的信号是通过一系列的转录因子、启动子及蛋白互作来调节一些特定的靶标蛋白,这些靶标蛋白在离子运输、水分运输、代谢、基因重编表达所形成的离子与水分平衡以及细胞稳定等方面发挥着至关重要的作用。植物通过胁迫信号的传导和应答获得抗逆性的增强。
Plants,as sessile organisms,must undergo and cope with abiotic stresses,such as soil salinity,drought,and extreme temperatures.Plants sense these stress signals mainly according to energy consuming protein kinases.The stress signal transduction network is transmitted into the cell and re encodes the expression and activity of the signal network components,so as to achieve the purpose of adapting to the stress environment.Signals from stress environment could mediate some special target proteins by series of transcriptions,promoters and protein interaction.The proteins are critical for ionic and water homeostasis and cell stability resulting from ion and water transport,metabolism and gene-expression reprogramming.Plants achieved the ability of stress resistance improvement by stress-signaling transduction and responses.
出处
《分子植物育种》
CAS
CSCD
北大核心
2018年第2期614-625,共12页
Molecular Plant Breeding
基金
国家自然科学基金项目(31570650)
国家国际科技合作专项(2014DFG32440)
江苏高校优势学科建设工程项目(PAPD)共同资助
关键词
非生物胁迫
信号传导
感受器
植物激素
抗逆性
Abiotic stress, Signaling transduction, Sensor, Phytohormone, Stress resistance
