Artículos de revistas
Differential efficiency of two strains of the arbuscular mycorrhizal fungus Rhizophagus irregularis on olive (Olea europaea) plants under two water regimes
Fecha
2013-10Registro en:
Bompadre, Maria Josefina; Rios, Maria del Carmen; Colombo, Roxana; Fernandez Bidondo, Laura; Silvani, Vanesa Analia; et al.; Differential efficiency of two strains of the arbuscular mycorrhizal fungus Rhizophagus irregularis on olive (Olea europaea) plants under two water regimes; Springer; Symbiosis; 61; 2; 10-2013; 105-112
0334-5114
Autor
Bompadre, Maria Josefina
Rios, Maria del Carmen
Colombo, Roxana
Fernandez Bidondo, Laura
Silvani, Vanesa Analia
Pardo, Alejandro Guillermo
Ocampo, Juan Antonio
Godeas, Alicia Margarita
Resumen
The water regime affects a wide variety of physiological and biochemical processes in plants including an increased production of reactive oxygen species (ROS) capable of causing oxidative damage to proteins, DNA and lipids. Arbuscular mycorrhizal fungi (AMF) colonize a wide range of plant species though the ability of different AMF species to promote host growth or contribute to plant water deficit resistance varies. The first phase of olive tree cultivation takes place in a nursery where plants usually suffer stress by drying. Currently, olive production systems do not use of AMF to counteract this problem. To study the colonization strategies of two AMF strains and their efficiency with respect to growth and their effect on enzymatic activities, we inoculated them individually and co-inoculated then on olive plants under nursery growing conditions. The results showed the benefits generated by these fungi in terms of growth and survival rate. Co-inoculation, particularly, improved growth and reduced the damage due to water stress, partly as a result of the activation of the antioxidant defenses in the olive plant host.