转C4型PEPC基因水稻非生物胁迫耐受性研究进展

Research Progress on Abiotic Stress Tolerance of Transgenic Rice with C4-PEPC Gene

作物在生长过程中会遇到很多非生物胁迫,如高温、高光强、干旱以及土壤盐碱化等,严重影响着作物产量潜力的发挥。水稻作为一半以上人类的主食以及模式植物,其对逆境信号分子的感受和响应作用机制一直是植物科学研究的热点之一。而高表达转玉米C 4型PEPC基因水稻显著增强了水稻的耐逆特性,作为表现耐逆优势的植物材料,在不同非生物胁迫有系列报道。文章对该水稻材料在形态、产量、生理生化及分子方面的变化特点以及其在响应非生物逆境下信号分子、转录因子、靶基因以及激素的作用机制等方面进行了总结,以期为进一步阐明水稻的耐旱机理提供参考依据。

Crops are easy to encounter a lot of abiotic stresses during their growth,such as high temperature,strong light,drought,soil salinization and so on,which seriously affect the exhibiting the yield potential.Rice,as the food of more than half of the world population,its perception and response mechanism to stress signal molecules has always been one of the hotspots of plant science research.However,the high expression of transgenic maize C 4-PEPC gene significantly enhanced the stress tolerance of rice.As a plant material showing the advantage of stress tolerance,it has been reported in a series of reports under different abiotic stresses.The characteristics of the changes in yield,physiology,biochemistry and molecule,and the research progress in signal molecules,transcription factors,target genes and hormones in recent years were summarized,which would provide a reference basis for further elucidating the drought tolerance of the rice.