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dc.contributor.author
Molina Montenegro, Marco A.  
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Oses, Rómulo  
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Torres Díaz, Cristian  
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Atala, Cristian  
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Nuñez, Martin Andres  
dc.contributor.author
Armas, Cristina  
dc.date.available
2018-05-07T20:40:54Z  
dc.date.issued
2015-05-01  
dc.identifier.citation
Molina Montenegro, Marco A.; Oses, Rómulo; Torres Díaz, Cristian; Atala, Cristian; Nuñez, Martin Andres; et al.; Fungal endophytes associated with roots of nurse cushion species have positive effects on native and invasive beneficiary plants in an alpine ecosystem; Elsevier Gmbh; Perspectives in Plant Ecology Evolution and Systematics; 17; 3; 1-5-2015; 218-226  
dc.identifier.issn
1433-8319  
dc.identifier.uri
http://hdl.handle.net/11336/44366  
dc.description.abstract
Facilitation has been proposed to be a fundamental mechanism for plant coexistence, being particularly important in highly stressful environments such as alpine environments. In this type of environment, species called “cushion plants” can ameliorate the stressful conditions, acting as nurses for other plants. Of the several mechanisms proposed in the positive-interactions framework, plant–microorganism interaction may be one of the most common, but least documented. Here we show that the presence of endophytes isolated from the roots of cushion plants Laretia acaulis can play a fundamental role in the establishment, performance and survival of both native and exotic plant seedlings that are known to be facilitated by the cushion species.To test this, we measured survival and growth of two native and one invasive species at 3200 m in the Andes of Central Chile. Plants were grown inside artificial cushions filled with native soil, with or without sterilization, and with or without fungal endophytic inoculation to evaluate the role of fungal endophytes on survival and growth. In addition, we conducted a second experiment in a greenhouse with the invasive species to evaluate the effect of fungal endophytic infection/association on plant ecophysiological performance, dry biomass and seed output.Overall, our results showed a strong positive effect of fungal endophytes on the survival and growth of both native and invasive species. Moreover, maximum quantum efficiency (Fv/Fm), biomass accumulation and seed production were enhanced in the invasive species when soils were inoculated with endophytes. Thus, facilitation by root endophytic fungi on native and invasive alpine plants could determine survival and establishment in this harsh environment.Several studies have shown that direct facilitation by cushion plants in alpine environments improves the performance and fitness of both native and exotic plants. Our results suggest that there are indirect effects, mediated by microorganism associations that may also help to explain the successful establishment of native and invasive species in these environments. If indirect plant–plant facilitation through root fungal endophytes proves to be a widespread phenomenon in alpine ecosystems, it could be a key component in the structuring of plant communities in those stressful environments.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Gmbh  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Cushion Plants  
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Endophytic Fungi  
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Facilitation  
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Invasive Species  
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Positive Interactions  
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Taraxacum Officinale  
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Otras Ciencias Biológicas  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Fungal endophytes associated with roots of nurse cushion species have positive effects on native and invasive beneficiary plants in an alpine ecosystem  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-04-09T16:55:17Z  
dc.journal.volume
17  
dc.journal.number
3  
dc.journal.pagination
218-226  
dc.journal.pais
Alemania  
dc.journal.ciudad
Weinheim  
dc.description.fil
Fil: Molina Montenegro, Marco A.. Universidad Católica de Chile; Chile. Comisión Nacional de Investigación Científica y Tecnológica. Centro de Investigación Regional. Centro de Estudios en Zonas Áridas; Chile  
dc.description.fil
Fil: Oses, Rómulo. Universidad Católica de Chile; Chile. Comisión Nacional de Investigación Científica y Tecnológica. Centro de Investigación Regional. Centro de Estudios en Zonas Áridas; Chile  
dc.description.fil
Fil: Torres Díaz, Cristian. Universidad del Bio Bio; Chile  
dc.description.fil
Fil: Atala, Cristian. Pontificia Universidad Católica de Valparaíso; Chile  
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Fil: Nuñez, Martin Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina  
dc.description.fil
Fil: Armas, Cristina. Universidad de La Serena; Chile  
dc.journal.title
Perspectives in Plant Ecology Evolution and Systematics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ppees.2015.02.003  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1433831915000165