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Physiological and Molecular Aspects of Tolerance to Environmental Constraints in Grain and Forage Legumes

Author: Bargaz, A.
Author: Farissi, M.
Author: Lazali, M.
Author: Drevon, J.J.
Author: Maougal, R.T.
Author: Georg, C.
Author: Zaman-Allah, M.
Year: 2015
Abstract: Despite the agronomical and environmental advantages of the cultivation of legumes, their production is limited by various environmental constraints such as water or nutrient limitation, frost or heat stress and soil salinity, which may be the result of pedoclimatic conditions, intensive use of agricultural lands, decline in soil fertility and environmental degradation. The development of more sustainable agroecosystems that are resilient to environmental constraints will therefore require better understanding of the key mechanisms underlying plant tolerance to abiotic constraints. This review provides highlights of legume tolerance to abiotic constraints with a focus on soil nutrient deficiencies, drought, and salinity. More specifically, recent advances in the physiological and molecular levels of the adaptation of grain and forage legumes to abiotic constraints are discussed. Such adaptation involves complex multigene controlled-traits which also involve multiple sub-traits that are likely regulated under the control of a number of candidate genes. This multi-genetic control of tolerance traits might also be multifunctional, with extended action in response to a number of abiotic constraints. Thus, concrete efforts are required to breed for multifunctional candidate genes in order to boost plant stability under various abiotic constraints.
Format: PDF
Language: English
Publisher: MDPI
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Place of Publication: Basel, Switzerland
Pages: 18976-19008
Issue: 8
Volume: 16
DOI: 10.3390/ijms160818976
Keywords: Abiotic Constraints
Agrovoc: DROUGHT
Agrovoc: LEGUMES
Journal: International Journal of Molecular Sciences

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  • Maize
    Maize breeding, phytopathology, entomology, physiology, quality, and biotech

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