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Making wheat salt tolerant:What is missing?

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The growing global population presents a significant challenge to ensuring food security,further com-pounded by the increasing threat of salinity to agricultural productivity. Wheat,a major staple food pro-viding 20％ of the total caloric intake for humans,is susceptible to salinity stress. Developing new salt-tolerant wheat cultivars using wheat breeding techniques and genetic modifications is crucial to address-ing this issue while ensuring the sustainability and efficiency of wheat production systems within the prevailing climate trend. This review overviews the current landscape in this field and explores key mechanisms and associated genetic traits that warrant attention within breeding programs. We contend that traditional approaches to breeding wheat for Na+exclusion have limited applicability across varying soil salinity levels,rendering them inefficient. Moreover,we question current phenotyping approaches,advocating for a shift from whole-plant assessments to cell-based phenotyping platforms. Finally,we propose a broader use of wild wheat relatives and various breeding strategies to tap into their germplasm pool for inclusion in wheat breeding programs.

PhenotypingBreedingReactive oxygen speciesTissue toleranceSodium exclusionPotassium retention

Lukasz Kotula、Noreen Zahra、Muhammad Farooq、Sergey Shabala、Kadambot H.M. Siddique

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The UWA Institute of Agriculture,The University of Western Australia,Perth,WA 6009,Australia

UWA School of Agriculture and Environment,The University of Western Australia,Perth,WA 6009,Australia

Department of Primary Industries and Regional Development,Perth,WA 6151,Australia

Department of Botany,Government College Women University Faisalabad,Faisalabad 75760,Punjab,Pakistan

Department of Plant Sciences,College of Agricultural and Marine Sciences,Sultan Qaboos University,Al-Khoud 123,Oman

School of Biological Sciences,The University of Western Australia,Perth,WA 6009,Australia

International Research Centre for Environmental Membrane Biology,Foshan University,Foshan 528225,Guangdong,China

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2024

10.1016/j.cj.2024.01.005

作物学报(英文版)

作物学报(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.12(5)