Author/Authors :
Mَnica and Castellanos-Morales، نويسنده , , Vilma and Keiser، نويسنده , , Cornelia and Cلrdenas-Navarro، نويسنده , , Rلul and Grausgruber، نويسنده , , Heinrich and Glauninger، نويسنده , , Johannes and Garcيa-Garrido، نويسنده , , José M. and Steinkellner، نويسنده , , Siegrid and Sampedro، نويسنده , , Inmaculada and Hage-Ahmed، نويسنده , , Karin and Illana، نويسنده , , Antonio and Ocam، نويسنده ,
Abstract :
The systemic effect of root colonization by the arbuscular mycorrhizal fungus (AMF) Glomus mosseae on the susceptibility of old and modern barley varieties to the soil-borne fungal pathogen Gaeumannomyces graminis var. tritici (Ggt) was studied in a split-root system. Plants were precolonized on one side of the split-root system with the AMF and thereafter the other side of the split-root system was inoculated with the pathogen. At the end of the experiment the level of bioprotection was estimated by quantifying lesioned roots and the determination of the root fresh weight. AM root colonization provided protection in some of the barley genotypes tested, but not in others. This protective effect seemed to vary in the oldest and the most modern barley variety tested.
Keywords :
Arbuscular mycorrhiza , Barley varieties , Gaeumannomyces graminis , Hordeum vulgare , Bioprotection
