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Int. J. Mol. Sci. 2015, 16(8), 18976-19008; doi:10.3390/ijms160818976

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

1
Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Box 103, SE-23053 Alnarp, Sweden
2
International Maize and Wheat Improvement Center (CIMMYT), Southern Africa Regional Office, MP163 Harare, Zimbabwe
3
Polyvalent Laboratory for Research & Development, Polydisciplinary Faculty, Sultan Moulay Sliman University, 23000 Beni-Mellal, Morocco
4
Faculté des Sciences de la Nature et de la Vie & des Sciences de la Terre, Université de Khemis Miliana, 44225 Ain Defla, Algeria
5
Unité mixte de recherche, Écologie Fonctionnelle & Biogéochimie des Sols et Agroécosystèmes, Institut National de la Recherche Agronomique, 34060 Montpellier, France
6
Laboratoire de génétique Biochimie et biotechnologies végétales Faculté des Sciences de la Nature et de la Vie, Université des frères Mentouri, 25017 Constantine, Algeria
*
Author to whom correspondence should be addressed.
Academic Editor: Ann Cuypers
Received: 24 May 2015 / Revised: 9 July 2015 / Accepted: 5 August 2015 / Published: 13 August 2015
(This article belongs to the Special Issue Abiotic Stress and Gene Networks in Plants)
View Full-Text   |   Download PDF [2270 KB, uploaded 21 August 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. View Full-Text
Keywords: abiotic constraints; drought; legume; phosphorus; salinity abiotic constraints; drought; legume; phosphorus; salinity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bargaz, A.; Zaman-Allah, M.; Farissi, M.; Lazali, M.; Drevon, J.-J.; Maougal, R.T.; Georg, C. Physiological and Molecular Aspects of Tolerance to Environmental Constraints in Grain and Forage Legumes. Int. J. Mol. Sci. 2015, 16, 18976-19008.

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