[ La symbiose Légumineuses-rhizobia sous conditions de salinité : Aspect Agro-physiologique et biochimique de la tolérance ]
Volume 11, Issue 1, October 2014, Pages 96–104
Mohamed Farissi1, Faissal Aziz2, Abdelaziz Bouizgaren3, and Cherki Ghoulam4
1 Department of Biology, Faculty of Sciences and techniques-Gueliz, University Cadi Ayyad, Marrakech, Morocco
2 Department of Biology, Faculty of Sciences Semlalia, Marrakesh 40000, Morocco
3 Department of Plant Breeding, National Institute for Agronomic Research, Marrakesh 40000, Morocco
4 Department of Biology, Unit of Plant Biotechnology and Symbiosis Agro-physiology, Faculty of Sciences and Techniques, Gueliz Marrakesh 40000, Morocco
Original language: French
Copyright © 2014 ISSR Journals. 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.
Salinity of soils and irrigation waters remains in the arid and semi arid ecosystems, a major obstacle to the development and growth of plants. This constraint on the legumes-rhizobia symbiosis occurs by an osmotic and/or ionic effect inhibiting various physiological and biochemical processes governing the growth of the host plant, the survival and proliferation of rhizobia and subsequently the inhibition of the infection process and the biological nitrogen fixation. The ability of plants to prevent and repair damages caused under saline conditions is associated with changes in many physiological and biochemical process including vacuolar sequestering of sodium ion, maintaining a high cytosolic K+/Na+ concentration ratio, accumulation of osmoprotector solutes, induction of an oxidative stress response and of plant hormones.
Author Keywords: legumes, rhizobia, symbiosis, salinity, tolerance.
Volume 11, Issue 1, October 2014, Pages 96–104
Mohamed Farissi1, Faissal Aziz2, Abdelaziz Bouizgaren3, and Cherki Ghoulam4
1 Department of Biology, Faculty of Sciences and techniques-Gueliz, University Cadi Ayyad, Marrakech, Morocco
2 Department of Biology, Faculty of Sciences Semlalia, Marrakesh 40000, Morocco
3 Department of Plant Breeding, National Institute for Agronomic Research, Marrakesh 40000, Morocco
4 Department of Biology, Unit of Plant Biotechnology and Symbiosis Agro-physiology, Faculty of Sciences and Techniques, Gueliz Marrakesh 40000, Morocco
Original language: French
Copyright © 2014 ISSR Journals. 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.
Abstract
Salinity of soils and irrigation waters remains in the arid and semi arid ecosystems, a major obstacle to the development and growth of plants. This constraint on the legumes-rhizobia symbiosis occurs by an osmotic and/or ionic effect inhibiting various physiological and biochemical processes governing the growth of the host plant, the survival and proliferation of rhizobia and subsequently the inhibition of the infection process and the biological nitrogen fixation. The ability of plants to prevent and repair damages caused under saline conditions is associated with changes in many physiological and biochemical process including vacuolar sequestering of sodium ion, maintaining a high cytosolic K+/Na+ concentration ratio, accumulation of osmoprotector solutes, induction of an oxidative stress response and of plant hormones.
Author Keywords: legumes, rhizobia, symbiosis, salinity, tolerance.
Abstract: (french)
La salinité des sols et des eaux d'irrigation demeure dans les écosystèmes arides et semi arides, un obstacle majeur au développement et à la croissance des végétaux. Cette contrainte sur la symbiose légumineuses-rhizobia se manifeste par un effet osmotique et /ou ionique inhibant les différents processus physiologiques et biochimiques gouvernant la croissance de la plante hôte, la survie et la prolifération des rhizobia et par la suite l'inhibition des processus d'infection et de la fixation biologique de l'azote. La capacité des plantes à prévenir et réparer les dommages engendrés sous conditions salines est associée à différents changements physiologiques et biochimiques incluant la séquestration du sodium dans les vacuoles, le maintien d'un haut ratio cytosolique K+/Na+, l'accumulation d'osmoprotecteurs, et l'induction d'une réponse anti-oxydante et des phytohormones.
Author Keywords: légumineuses, rhizobia, symbiose, salinité, tolérance.
How to Cite this Article
Mohamed Farissi, Faissal Aziz, Abdelaziz Bouizgaren, and Cherki Ghoulam, “Legume-rhizobia symbiosis under saline conditions: Agro-physiological and biochemical aspects of tolerance,” International Journal of Innovation and Scientific Research, vol. 11, no. 1, pp. 96–104, October 2014.
