Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus
Some grasses are co-infected by ‘castrator’ fungal pathogens, such as Ustilago bullata, and beneficial seed transmitted Epichlo€e endophytes that compete for plant photosynthates and flowers. Epichlo€e-infected (E+) and Epichloë-free (E-) seeds of Bromus auleticus were inoculated (S+) or not (S-) wi...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/2779 http://dx.doi.org/10.1016/j.funeco.2017.06.001 |
| _version_ | 1855483118731919360 |
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| author | Iannone, Leopoldo Javier Vignale, Maria Victoria Pinget, Albertina Daniela Re, Alejo Esteban Mc Cargo, Patricia Débora Novas, María Victoria |
| author_browse | Iannone, Leopoldo Javier Mc Cargo, Patricia Débora Novas, María Victoria Pinget, Albertina Daniela Re, Alejo Esteban Vignale, Maria Victoria |
| author_facet | Iannone, Leopoldo Javier Vignale, Maria Victoria Pinget, Albertina Daniela Re, Alejo Esteban Mc Cargo, Patricia Débora Novas, María Victoria |
| author_sort | Iannone, Leopoldo Javier |
| collection | INTA Digital |
| description | Some grasses are co-infected by ‘castrator’ fungal pathogens, such as Ustilago bullata, and beneficial seed transmitted Epichlo€e endophytes that compete for plant photosynthates and flowers. Epichlo€e-infected (E+) and Epichloë-free (E-) seeds of Bromus auleticus were inoculated (S+) or not (S-) with teliospores of U. bullata and an experiment under field conditions was performed to evaluate the effect of these fungal infections on different host plant traits. Head smut disease incidence was almost 0% in E+ treatment whereas in endophyte-free plants the disease incidence reached 33%, a result in concordance with the lower number of seeds produced by E- S+ plants. Neither the smut nor the endophyte affected seedling emergence or growth. Plant survival was significantly decreased by the smut in E- plants and was associated with a higher biomass production in E+ treatments. Our results provide new insights about the ecology of Epichloë endophytes and their protective and growth-promoting role in the interaction of its host with U. bullata |
| format | Artículo |
| id | INTA2779 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA27792018-08-03T12:23:12Z Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus Iannone, Leopoldo Javier Vignale, Maria Victoria Pinget, Albertina Daniela Re, Alejo Esteban Mc Cargo, Patricia Débora Novas, María Victoria Epichloe Ustilago Simbiosis Mutualismo Endofitas Enfermedades de las Plantas Plant Diseases Endophytes Symbiosis Mutualism Bromus Auleticus Ustilago Bullata Enfermedad del Carbón Some grasses are co-infected by ‘castrator’ fungal pathogens, such as Ustilago bullata, and beneficial seed transmitted Epichlo€e endophytes that compete for plant photosynthates and flowers. Epichlo€e-infected (E+) and Epichloë-free (E-) seeds of Bromus auleticus were inoculated (S+) or not (S-) with teliospores of U. bullata and an experiment under field conditions was performed to evaluate the effect of these fungal infections on different host plant traits. Head smut disease incidence was almost 0% in E+ treatment whereas in endophyte-free plants the disease incidence reached 33%, a result in concordance with the lower number of seeds produced by E- S+ plants. Neither the smut nor the endophyte affected seedling emergence or growth. Plant survival was significantly decreased by the smut in E- plants and was associated with a higher biomass production in E+ treatments. Our results provide new insights about the ecology of Epichloë endophytes and their protective and growth-promoting role in the interaction of its host with U. bullata EEA Concepción del Uruguay Fil: Iannone, Leopoldo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina Fil: Vignale, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina Fil: Pinget, Albertina Daniela. Universidad de Concepción del Uruguay. Facultad de Ciencias Agrarias; Argentina Fil: Re, Alejo Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concepción del Uruguay; Argentina Fil: Mc Cargo, Patricia Débora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina Fil: Novas, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina 2018-07-12T15:34:31Z 2018-07-12T15:34:31Z 2017 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2779 1754-5048 http://dx.doi.org/10.1016/j.funeco.2017.06.001 eng info:eu-repo/semantics/restrictedAccess application/pdf Fungal ecology 29 : 45-51. (2017) |
| spellingShingle | Epichloe Ustilago Simbiosis Mutualismo Endofitas Enfermedades de las Plantas Plant Diseases Endophytes Symbiosis Mutualism Bromus Auleticus Ustilago Bullata Enfermedad del Carbón Iannone, Leopoldo Javier Vignale, Maria Victoria Pinget, Albertina Daniela Re, Alejo Esteban Mc Cargo, Patricia Débora Novas, María Victoria Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus |
| title | Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus |
| title_full | Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus |
| title_fullStr | Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus |
| title_full_unstemmed | Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus |
| title_short | Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus |
| title_sort | seed transmitted epichloe sp endophyte alleviates the negative effects of head smut of grasses ustilago bullata on bromus auleticus |
| topic | Epichloe Ustilago Simbiosis Mutualismo Endofitas Enfermedades de las Plantas Plant Diseases Endophytes Symbiosis Mutualism Bromus Auleticus Ustilago Bullata Enfermedad del Carbón |
| url | http://hdl.handle.net/20.500.12123/2779 http://dx.doi.org/10.1016/j.funeco.2017.06.001 |
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