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resumen

Resumen
Tall fescue (Festuca arundinacea Schreb.) is a perennial C3 grass species usually associated with the endophyte fungus Epichloë coenophiala that enhances tolerance to biotic and abiotic stresses. Given that the proportion of infected tall fescue plants in the grasslands of the Flooding Pampa (Argentina) has been progressively increasing, it is proposed that endophytes confer tolerance to the stresses characteristic of that environment, especially [ver mas...]
dc.contributor.authorPetigrosso, Lucas R.
dc.contributor.authorVignolio, Osvaldo
dc.contributor.authorGundel, Pedro
dc.contributor.authorMonterubbianesi, María Gloria
dc.contributor.authorAssuero, Silvia Graciela
dc.date.accessioned2024-06-05T10:26:40Z
dc.date.available2024-06-05T10:26:40Z
dc.date.issued2024-05
dc.identifier.issn1442-9985 (Print)
dc.identifier.issn1442-9993 (Online)
dc.identifier.otherhttps://doi.org/10.1111/aec.13545
dc.identifier.urihttp://hdl.handle.net/20.500.12123/18026
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/10.1111/aec.13545
dc.description.abstractTall fescue (Festuca arundinacea Schreb.) is a perennial C3 grass species usually associated with the endophyte fungus Epichloë coenophiala that enhances tolerance to biotic and abiotic stresses. Given that the proportion of infected tall fescue plants in the grasslands of the Flooding Pampa (Argentina) has been progressively increasing, it is proposed that endophytes confer tolerance to the stresses characteristic of that environment, especially flooding. Plants from a naturalized population and a commercial cultivar were grown, both with and without endophyte (wild type and AR584 respectively). The plants were subjected to two submergence treatments (i.e., control and partial submergence) in two development stages (5-leaf stage and beginning of the elongation of internodes). Plant performance (aerial and root biomass, root aerenchyma formation, total root length and root diameter, proportion of reproductive tillers, number of panicles and seeds produced) and endophyte transmission to progeny were evaluated. Endophytes did not alter the ecological fitness of plants under partial submergence. Independently of the water condition, the symbiosis was linked to low biomass in plants from the naturalized population, while the opposite occurred in plants from the cultivar. Partial submergence did not affect the germination of the seeds produced, nor the transmission of the endophyte to the seedlings that originated from them. Our work suggests that the invasion ability of tall fescue in the Flooding Pampa grasslands is not related to an endophyte-mediated improvement of plants to tolerate water excess.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherWileyes_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/es_AR
dc.sourceAustral Ecology 49 (5) : e13545 (May 2024)es_AR
dc.subjectFestuca Arundinaceaeng
dc.subjectEpichloeeng
dc.subjectInundaciónes_AR
dc.subjectFloodingeng
dc.subjectEndofitases_AR
dc.subjectEndophyteseng
dc.subject.otherFestuca Altaes_AR
dc.titleResponse of endophyte-infected and endophyte-free tall fescue plants to partial submergence at two developmental stageses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)es_AR
dc.description.origenEEA Balcarcees_AR
dc.description.filFil: Petigrosso, Lucas R. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Vignolio, Osvaldo R. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Gundel, Pedro. Universidad deTalca. Instituto de Ciencias Biológicas. Centro de Ecología Integrativa; Chilees_AR
dc.description.filFil: Gundel, Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires; Argentina. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentinaes_AR
dc.description.filFil: Monterubbianesi, María Gloria. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Assuero, Silvia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.subtypecientifico


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