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dc.contributor.author
Barrera, Andrea
dc.contributor.author
Hereme, Rasme
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Ruiz Lara, Simon
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Larrondo, Luis
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dc.contributor.author
Gundel, Pedro Emilio
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Pollmann, Stephan
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Molina Montenegro, Marco A.
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Ramos, Patricio
dc.date.available
2022-09-13T12:09:02Z
dc.date.issued
2020-05
dc.identifier.citation
Barrera, Andrea; Hereme, Rasme; Ruiz Lara, Simon; Larrondo, Luis; Gundel, Pedro Emilio; et al.; Fungal Endophytes Enhance the Photoprotective Mechanisms and Photochemical Efficiency in the Antarctic Colobanthus quitensis (Kunth) Bartl. Exposed to UV-B Radiation; Frontiers Media; Frontiers in Ecology and Evolution; 8; 122; 5-2020; 1-13
dc.identifier.uri
http://hdl.handle.net/11336/168470
dc.description.abstract
Antarctic plants have developed mechanisms to deal with one or more adverse factors which allow them to successfully survive such extreme environment. Certain effective mechanisms to face adverse stress factors can arise from the establishment of functional symbiosis with endophytic fungi. In this work, we explored the role of fungal endophytes on host plant performance under high level of UV-B radiation, a harmful factor known to damage structure and function of cell components. In order to unveil the underlying mechanisms, we characterized the expression of genes associated to UV-B photoreception, accumulation of key flavonoids, and physiological responses of Colobanthus quitensis plants with (E+) and without (E−) fungal endophytes, under contrasting levels of UV-B radiation. The deduced proteins of CqUVR8, CqHY5, and CqFLS share the characteristic domains and display high degrees of similarity with other corresponding proteins in plants. Endophyte symbiotic plants showed lower lipid peroxidation and higher photosynthesis efficiency under high UV-B radiation. In comparison with E−, E+ plants showed lower CqUVR8, CqHY5, and CqFLS transcript levels. The content of quercetin, a ROS-scavenger flavonoid, in leaves of E- plants exposed to high UV-B was almost 8-fold higher than that in E+ plants 48 h after treatment. Our results suggest that endophyte fungi minimize cell damage and boost physiological performance in the Antarctic plants increasing the tolerance to UV-B radiation. Fungal endophytes appear as fundamental biological partners for plants to cope with the highly damaging UV-B radiation of Antarctica.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Frontiers Media
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ANTARCTICA
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COLOBANTHUS QUITENSIS
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FLAVONOLS
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FUNGAL ENDOPHYTES
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MOLECULAR RESPONSE
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UV-B STRESS
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Ecología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Fungal Endophytes Enhance the Photoprotective Mechanisms and Photochemical Efficiency in the Antarctic Colobanthus quitensis (Kunth) Bartl. Exposed to UV-B Radiation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-07T15:20:12Z
dc.identifier.eissn
2296-701X
dc.journal.volume
8
dc.journal.number
122
dc.journal.pagination
1-13
dc.journal.pais
Suiza
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dc.journal.ciudad
Lausanne
dc.description.fil
Fil: Barrera, Andrea. Universidad de Talca; Chile
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Fil: Hereme, Rasme. Universidad de Talca; Chile
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Fil: Ruiz Lara, Simon. Universidad de Talca; Chile
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Fil: Larrondo, Luis. Pontificia Universidad Católica de Chile; Chile
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Fil: Gundel, Pedro Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
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Fil: Pollmann, Stephan. Universidad Politécnica de Madrid; España
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Fil: Molina Montenegro, Marco A.. Universidad de Talca; Chile
dc.description.fil
Fil: Ramos, Patricio. Universidad de Talca; Chile
dc.journal.title
Frontiers in Ecology and Evolution
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/article/10.3389/fevo.2020.00122/full
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/fevo.2020.00122
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