植物miRNA在调节低磷胁迫响应中的作用  

The Roles of Plant MicroRNA in Regulating the Response to Low Phosphorus Stress

作　　者：潘晓阳 张文睿 王丹[1] 申忠宝[2] 郭长虹[1] PAN Xiao-yang;ZHANG Wen-rui;WANG Dan;SHEN Zhong-bao;GUO Chang-hong(College of Life Science and Technology,Harbin Normal University/Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province,Harbin 150000;Institute of Forage and Grassland Science,Heilongjiang Academy of Agricultural Science,Harbin 150086)

机构地区：[1]哈尔滨师范大学生命科学与技术学院/黑龙江省分子细胞遗传与遗传育种重点实验室,哈尔滨150000 [2]黑龙江省农业科学院草业研究所,哈尔滨150086

出　　处：《植物遗传资源学报》2020年第3期517-524,共8页Journal of Plant Genetic Resources

基　　金：国家重点研发计划项目(2017YFD0101303);黑龙江省科技攻关项目(GA18B104);国家转基因生物新品种培育重大专项(2016ZX08004-002);哈尔滨师范大学研究生创新基金项目(HSDSSCX2019-21)。

摘　　要：植物MicroRNA(miRNA)是一类内源性非编码小分子RNA,它们参与调节植物的生长、发育和代谢过程中多种基因的表达。近期的研究发现miRNA参与调节磷的吸收和利用,对植物适应低磷胁迫具有重要作用。本文概述了植物磷吸收和转运的机制,介绍了低磷胁迫下miRNA的表达水平变化,重点对miRNA在植物响应低磷胁迫中的作用,如改变根系结构、提高磷的转运和再利用效率、参与花青素和抗氧化物生物合成等进行了综述,以期为揭示植物低磷胁迫响应分子机制,提高植物对磷的吸收效率提供借鉴。Plant microRNA(miRNA)is a group of endogenous non-coding RNAs that participate in regulating gene expression during the processes of plant growth,development and metabolism.Recent studies indicated that miRNAs play important roles in plant adaptation to low phosphorus stress by regulating phosphorus absorption and utilization.This review summarizes the molecular mechanisms of phosphorus absorption and transport by plants,and introduces the transcriptional patterns of miRNAs under low phosphorus stress.Especially,this focuses on plant miRNAs responding to low phosphorus stress,including structure modification of root system,improvement of the efficiency of phosphorus transport and reuse,as well as anthocyanin and antioxidant biosynthesis.It is expected to provide insights for unlocking the molecular mechanisms of plant responses to low phosphorus stress and improving the efficiency of plant phosphorus absorption.

关 键 词：植物 MIRNA 低磷胁迫 响应 

分 类 号：Q945.78[生物学—植物学]