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dc.contributor.author
Gago, Jorge
dc.contributor.author
Nadal, Miquel
dc.contributor.author
Clemente Moreno, María José
dc.contributor.author
Figueroa, Carlos Maria
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dc.contributor.author
Barbosa Medeiros, David
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Cubo Ribas, Neus
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Cavieres González, Lohengrin Alexis
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dc.contributor.author
Gulías, Javier
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Fernie, Alisdair Robert
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Flexas, Jaume
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Bravo, León Aloys
dc.date.available
2024-02-05T14:03:51Z
dc.date.issued
2023-04
dc.identifier.citation
Gago, Jorge; Nadal, Miquel; Clemente Moreno, María José; Figueroa, Carlos Maria; Barbosa Medeiros, David ; et al.; Nutrient availability regulates Deschampsia antarctica photosynthetic and stress tolerance performance in Antarctica; Oxford University Press; Journal of Experimental Botany; 74; 8; 4-2023; 2620-2637
dc.identifier.issn
0022-0957
dc.identifier.uri
http://hdl.handle.net/11336/225794
dc.description.abstract
Deschampsia antarctica is one of the only two native vascular plants in Antarctica, mostly located in the ice-free areas of the Peninsula's coast and adjacent islands. This region is characterized by a short growing season, frequent extreme climatic events, and soils with reduced nutrient availability. However, it is unknown whether its photosynthetic and stress tolerance mechanisms are affected by the availability of nutrients to deal with this particular environment. We studied the photosynthetic, primary metabolic, and stress tolerance performance of D. antarctica plants growing on three close sites (<500 m) with contrasting soil nutrient conditions. Plants from all sites showed similar photosynthetic rates, but mesophyll conductance and photobiochemistry were more limiting (∼25%) in plants growing on low-nutrient availability soils. Additionally, these plants showed higher stress levels and larger investments in photoprotection and carbon pools, most probably driven by the need to stabilize proteins and membranes, and remodel cell walls. In contrast, when nutrients were readily available, plants shifted their carbon investment towards amino acids related to osmoprotection, growth, antioxidants, and polyamines, leading to vigorous plants without appreciable levels of stress. Taken together, these findings demonstrate that D. antarctica displays differential physiological performances to cope with adverse conditions depending on resource availability, allowing it to maximize stress tolerance without jeopardizing photosynthetic capacity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MESOPHYLL CONDUCTANCE
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NUTRIENT MOBILIZATION
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PHOTOBIOCHEMISTRY
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PHOTOSYNTHETIC LIMITATIONS
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POLYAMINES
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PRIMARY METABOLISM
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STOMATAL CONDUCTANCE
dc.subject.classification
Bioquímica y Biología Molecular
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dc.subject.classification
Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Nutrient availability regulates Deschampsia antarctica photosynthetic and stress tolerance performance in Antarctica
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-02T16:04:33Z
dc.journal.volume
74
dc.journal.number
8
dc.journal.pagination
2620-2637
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Oxford
dc.description.fil
Fil: Gago, Jorge. Universidad de las Islas Baleares; España
dc.description.fil
Fil: Nadal, Miquel. Universidad de las Islas Baleares; España. Centro de Investigación y Tecnología Agroalimentaria de Aragón; España
dc.description.fil
Fil: Clemente Moreno, María José. Universidad de las Islas Baleares; España
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Fil: Figueroa, Carlos Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
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Fil: Barbosa Medeiros, David. Max Planck Institute Of Molecular Plant Physiology; Alemania
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Fil: Cubo Ribas, Neus. Universidad de las Islas Baleares; España
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Fil: Cavieres González, Lohengrin Alexis. Universidad de Concepción; Chile. Universidad de La Frontera; Chile
dc.description.fil
Fil: Gulías, Javier. Universidad de las Islas Baleares; España
dc.description.fil
Fil: Fernie, Alisdair Robert. Max Planck Institute Of Molecular Plant Physiology; Alemania
dc.description.fil
Fil: Flexas, Jaume. Universidad de las Islas Baleares; España
dc.description.fil
Fil: Bravo, León Aloys. Universidad de La Frontera; Chile
dc.journal.title
Journal of Experimental Botany
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1093/jxb/erad043
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jxb/article-abstract/74/8/2620/7070417?redirectedFrom=fulltext&login=false
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