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

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Molecular Plant 2022年第1期15卷 45-64页

作者： Nishtha Rawat Silas Wungrampha sneh l.singla-pareek Min Yu Sergey Shabala Ashwani pareek Stress Physiology and Molecular Biology lab School of Life SciencesJawaharlal Nehru UniversityNew Delhi 110067India Plant Stress Biology International Centre for Genetic Engineering and BiotechnologyNew Delhi 110067India International Research Centre for Environmental Membrane Biology Foshan UniversityFoshan 528000China Tasmanian Institute for Agriculture University of TasmaniaHobart Tas 7001Australia National Agri-Food Biotechnology institute Mohali 140306India

Abiotic stress tolerance has been weakened during the domestication of all major staple *** 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 ***,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 ***,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 *** 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

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