Bioprotection against Gaeumannomyces graminis in barley a comparison between arbuscular mycorrhizal fungi

V. Castellanos-Morales, R. Cárdenas-Navarro, J.M. García-Garrido, A. Illana, J.A. Ocampo, S. Steinkellner and H. Vierheilig
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V. Castellanos-Morales: Corporativo de Desarrollo Sustentable (COSUSTENTA), Circuito Parque Industrial
R. Cárdenas-Navarro: 52, Colonia Ciudad Industrial, Morelia Michoacán, México 2Instituto de Investigaciones Agropecuarias y Forestales (IIAF), Carretera Morelia-inápecuaro, Tarimbaro Michoacán, México
J.M. García-Garrido: Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), CSIC, Granada, Spain
A. Illana: Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), CSIC, Granada, Spain
J.A. Ocampo: Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), CSIC, Granada, Spain
S. Steinkellner: Division of Plant Protection (DCS), University of Natural Resources and Life Sciences, Vienna, Austria
H. Vierheilig: Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), CSIC, Granada, Spain

Plant, Soil and Environment, 2012, vol. 58, issue 6, 256-261

Abstract: Gaeumannomyces graminis var. tritici causes take-all disease, the most important root disease of cereal plants. Cereal plants are able to form a symbiotic association with soil-borne arbuscular mycorrhizal fungi which can provide bioprotection against soil-borne fungal pathogens. However, the bioprotective effect of arbuscular mycorrhizal fungi against soil-borne fungal pathogens might vary. In the present study we tested the systemic bioprotective effect of the arbuscular mycorrhizal fungi Glomus mosseae, Glomus intraradices and Gigaspora rosea against the soil-borne fungal pathogen Gaeumannomyces graminis var. tritici in a barley split-root system. Glomus intraradices, Glomus mosseae and Gigaspora rosea colonized the split-root system of barley plants at different levels; however, all arbuscular mycorrhizal fungi clearly reduced the level of root lesions due to the pathogen Gaeumannomyces graminis. Our data indicate that some arbuscular mycorrhizal fungi need high root colonization rates to protect plants against fungal pathogens, whereas others act already at low root colonization rates.

Keywords: soil-borne fungi; take-all diseases; Gigaspora rosea; Glomus sp; Hordeum vulgare (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:58:y:2012:i:6:id:622-2011-pse

DOI: 10.17221/622/2011-PSE

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