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

International Journal of Molecular Sciences

Carlsson Georg¹  Adnane Bargaz¹  Mohamed Lazali²  Mainassara Zaman-Allah³  Rim T. Maougal⁴  Mohamed Farissi⁵  Jean-Jacques Drevon⁶ 

[1] Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Box 103, SE-23053 Alnarp, Sweden;Faculté des Sciences de la Nature et de la Vie & des Sciences de la Terre,Université de Khemis Miliana, 44225 Ain Defla, Algeria;International Maize and Wheat Improvement Center (CIMMYT), Southern Africa Regional Office, MP163 Harare, Zimbabwe;Laboratoire de génétique Biochimie et biotechnologies végétales Faculté des Sciencesde la Nature et de la Vie, Université des frères Mentouri, 25017 Constantine, Algeria;Polyvalent Laboratory for Research & Development, Polydisciplinary Faculty,Sultan Moulay Sliman University, 23000 Beni-Mellal, Morocco;Unité mixte de recherche, Écologie Fonctionnelle & Biogéochimie des Sols et Agroécosystèmes,Institut National de la Recherche Agronomique, 34060 Montpellier, France;

关键词: abiotic constraints;    drought;    legume;    phosphorus;    salinity;   

DOI  :  10.3390/ijms160818976

来源: DOAJ

【 摘 要 】

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 thatare 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.

【 授权许可】

Unknown