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dc.contributor.author
Acuña Rodríguez, Ian S.
dc.contributor.author
Ballesteros, Gabriel I.
dc.contributor.author
Atala, Cristian
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dc.contributor.author
Gundel, Pedro Emilio
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dc.contributor.author
Molina Montenegro, Marco A.
dc.date.available
2023-11-01T11:05:18Z
dc.date.issued
2022-05
dc.identifier.citation
Acuña Rodríguez, Ian S.; Ballesteros, Gabriel I.; Atala, Cristian; Gundel, Pedro Emilio; Molina Montenegro, Marco A.; Hardening Blueberry Plants to Face Drought and Cold Events by the Application of Fungal Endophytes; MDPI; Agronomy; 12; 5; 5-2022; 1-14
dc.identifier.issn
2073-4395
dc.identifier.uri
http://hdl.handle.net/11336/216727
dc.description.abstract
Harsh environmental conditions derived from current climate change trends are among the main challenges for agricultural production worldwide. In the Mediterranean climatic region of central Chile, sudden occurrence of spring cold temperatures in combination with water shortage for irrigation (drought) constitutes a major limitation to highbush blueberry (Vaccinium corymbosum) plantations, as flowering and fruiting stages are highly sensitive. Hardening crops may be achievable by boosting beneficial interactions of plants with microorganisms. Inoculation with symbiotic fungi isolated from plants adapted to extreme environments could be a good strategy, if they are able to maintain functional roles with non-original hosts. Here, we evaluated the effect of two Antarctic fungal endophytes (AFE), Penicillium rubens and P. bialowienzense, on the tolerance of V. corymbosum plants to cold events in combination with drought under controlled conditions. Inoculated and uninoculated plants were exposed for a month to one event of a cold temperature (2◦C/8 h) per week with or without drought and were evaluated in physiological, biochemical, and molecular variables. A complementary set of plants was kept under the same environmental conditions for two additional months to evaluate survival as well as fruit weight and size. There was an overall positive effect of AFE on plant performance in both environmental conditions. Endophyte-inoculated plants exhibited higher gene expression of the Late Embryogenesis Abundant protein (LEA1), higher photochemical efficiency (Fv/Fm), and low oxidative stress (TBARS) than uninoculated counterparts. On the other hand, plant survival was positively affected by the presence of fungal endophytes. Similarly, fruit diameter and fruit fresh weight were improved by fungal inoculation, being this difference higher under well-watered condition. Inoculating plants with fungal endophytes isolated from extreme environments represents a promising alternative for hardening crops. This is especially relevant nowadays since agriculture is confronting great environmental uncertainties and difficulties which could became worse in the near future due to climate change.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
COLD-STRESS
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FUNCTIONAL SYMBIOSIS
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PLANT-MICROORGANISMS INTERACTION
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WATER DEFICIT
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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
Hardening Blueberry Plants to Face Drought and Cold Events by the Application of Fungal Endophytes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-10-31T17:48:41Z
dc.journal.volume
12
dc.journal.number
5
dc.journal.pagination
1-14
dc.journal.pais
Suiza
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dc.description.fil
Fil: Acuña Rodríguez, Ian S.. Universidad de Talca; Chile
dc.description.fil
Fil: Ballesteros, Gabriel I.. Universidad de Talca; Chile
dc.description.fil
Fil: Atala, Cristian. Pontificia Universidad Católica de Valparaíso; Chile
dc.description.fil
Fil: Gundel, Pedro Emilio. Universidad de Talca; Chile. 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
dc.description.fil
Fil: Molina Montenegro, Marco A.. Universidad de Talca; Chile. Universidad Católica del Norte; Chile
dc.journal.title
Agronomy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/agronomy12051000
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