水稻锌吸收、转运、累积机理研究进展  

Research Progress in Absorption,Transportation and Accumulation Mechanism of Zinc in Rice

作　　者：薛欣月 于雪然 刘晓刚 马嘉欣 田蕾[1] 李培富[1] XUE Xin-yue;YU Xue-ran;LIU Xiao-gang;MA Jia-xin;TIAN Lei;LI Pei-fu(Agricultural College of Ningxia University,Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia,Yinchuan 750021)

机构地区：[1]宁夏优势特色作物现代分子育种重点实验室宁夏大学农学院,银川750021

出　　处：《生物技术通报》2022年第4期29-43,共15页Biotechnology Bulletin

基　　金：宁夏重点研发计划重大项目课题(2019BBF02022-01);宁夏农业育种专项课题(2018NYYZ0302)。

摘　　要：锌是水稻正常生长发育所必需的微量营养元素之一,是生长素、叶绿素合成等多种酶促反应的辅助因子。水稻缺锌时,植株矮小,叶片生长受到抑制且失绿变白,抽穗晚而少,严重影响产量;锌过量又容易对水稻产生毒害作用。因此研究水稻锌元素吸收、转运和累积机制,通过现代分子生物技术对水稻籽粒锌富集进行生物强化具有重要意义。基于近年来国内外研究报道,简要概述了锌在水稻体内的生理功能,水稻不同营养器官对锌的吸收途径以及影响锌元素吸收积累的因素,并对近年来水稻中鉴定出的锌转运蛋白及其家族成员的种类、结构以及功能进行了归纳总结,旨为进一步了解水稻体内的锌转运系统及其调控提供参考。Zinc is one of the micronutrient elements necessary for the normal growth and development in rice,and is the auxiliary factor in biosynthesis of auxin,chlorophyll and other chemicals.Zinc deficiency can lead to drawf,slow growth of new leaves,chlorosis and white midrib in leaves,late and less heading,which seriously affects the yield.In addition,excessive zinc may cause toxic effects on rice.Therefore,it is of great significance to study the mechanisms of zinc absorption,transportation and accumulation in rice and to biofortificate the enrichment of zinc in rice grain by modern biotechnology.Based on the recent reports in domestic and abroad,this paper briefly reviewed the physiological function of zinc in rice,zinc absorption pathways in different tissues of rice,and factors affecting the absorption and accumulation of zinc.Further this paper sorted and summarized the types,structures and functions of zinc transporters,and their family members identified in rice in recent years,aiming to provide references for further understanding the zinc transport system and its regulatory mechanism in rice.

关 键 词：水稻 锌 吸收转运 锌转运蛋白 生物强化 

分 类 号：S511[农业科学—作物学]