Rewilding staple crops for the lost halophytism:Toward sustainability and profitability of agricultural production systems  

作　　者：Nishtha Rawat Silas Wungrampha Sneh L.Singla-Pareek Min Yu Sergey Shabala Ashwani Pareek 

机构地区：[1]Stress Physiology and Molecular Biology Lab,School of Life Sciences,Jawaharlal Nehru University,New Delhi 110067,India [2]Plant Stress Biology,International Centre for Genetic Engineering and Biotechnology,New Delhi 110067,India [3]International Research Centre for Environmental Membrane Biology,Foshan University,Foshan 528000,China [4]Tasmanian Institute for Agriculture,University of Tasmania,Hobart Tas 7001,Australia [5]National Agri-Food Biotechnology institute,Mohali 140306,India

出　　处：《Molecular Plant》2022年第1期45-64,共20页分子植物（英文版）

基　　金：S.S.acknowledges support from the Department of Industry,Science,Energy and Resources(project AISRF48490);Australian Research Council(DP150101663,DP170100460);China National Distinguished Expert Project(WQ20174400441);grant 31961143001 for Joint Research Projects between Pakistan Science Foundation and National Natural Science Foundation,and Chinese National Natural Science Foundation(Project 31870249)。

摘　　要：Abiotic stress tolerance has been weakened during the domestication of all major staple crops.Soil salinity is a major environmental constraint that impacts over half of the world population;however,given the increasing reliance on irrigation and the lack of available freshwater,agriculture in the 21st century will increasingly become saline.Therefore,global food security is critically dependent on the ability of plant breeders to create high-yielding staple crop varieties that will incorporate salinity tolerance traits and ac-count for future climate scenarios.Previously,we have argued that the current agricultural practices and reliance on crops that exclude salt from uptake is counterproductive and environmentally unsustainable,and thus called for a need for a major shift in a breeding paradigm to incorporate some halophytic traits that were present in wild relatives but were lost in modern crops during domestication.In this review,we provide a comprehensive physiological and molecular analysis of the key traits conferring crop halophy-tism,such as vacuolar Na+sequestration,ROS desensitization,succulence,metabolic photosynthetic switch,and salt deposition in trichomes,and discuss the strategies for incorporating them into elite germ-plasm,to address a pressing issue of boosting plant salinity tolerance.

关 键 词：HALOPHYTE salinity salt sequestration tissue tolerance TRICHOMES water use efficiency 

分 类 号：S33[农业科学—作物遗传育种] S-0[农业科学—农艺学]