The bioprotective effect of AM root colonization against the soil-borne fungal pathogen Gaeumannomyces graminis var. tritici in barley depends on the barley variety

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...

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Published in:	Soil biology & biochemistry Vol. 43; no. 4; pp. 831 - 834
Main Authors:	Castellanos-Morales, Vilma, Keiser, Cornelia, Cárdenas-Navarro, Rául, Grausgruber, Heinrich, Glauninger, Johannes, García-Garrido, José M., Steinkellner, Siegrid, Sampedro, Inmaculada, Hage-Ahmed, Karin, Illana, Antonio, Ocampo, Juan A., Vierheilig, Horst
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier Ltd 01-04-2011 Elsevier
Subjects:	Agronomy. Soil science and plant productions Arbuscular mycorrhiza Barley varieties Biochemistry and biology Biological and medical sciences Bioprotection Chemical, physicochemical, biochemical and biological properties Economic plant physiology Fundamental and applied biological sciences. Psychology Gaeumannomyces graminis Glomus mosseae Hordeum vulgare Physics, chemistry, biochemistry and biology of agricultural and forest soils Soil science Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...) Bioprotection Barley varieties Gaeumannomyces graminis Hordeum vulgare Arbuscular mycorrhiza Ascomycota Barley Monocotyledones Soilborne transmission Plant pathogen Root Biological control Symbiont Cereal crop Fungi Endomycorrhiza Gramineae Pathogenic Angiospermae Mycorrhiza Spermatophyta Soil science Colonization Cultivar
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Summary:	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. ► AM fungi colonize old and modern barley varieties to a similar degree. ► Barley varieties show a differing susceptibility to take-all disease. ► Mycorrhization provides bioprotection in some of the barley genotypes tested, but not in others. ► This bioprotective effect seemed to vary in the oldest and the most modern barley variety tested.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0038-0717 1879-3428
DOI:	10.1016/j.soilbio.2010.12.020