Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess

Coexistence impact of pollutants of different nature on halophytes tolerance to metal excess has not been thoroughly examined, and plant functional responses described so far do not follow a clear pattern. Using the Cu-tolerant halophyte Sarcocornia fruticosa as a model species, we conducted a green...

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Autores: Valle Romero, Pedro, Castellanos, Eloy Manuel, Luque, Carlos J., Flores Duarte, Noris J., Romano Rodríguez, Elena, Redondo Gómez, Susana, Rodríguez Llorente, Ignacio David, Pajuelo Domínguez, Eloísa, Mateos Naranjo, Enrique
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/160403
Acceso en línea:https://hdl.handle.net/11441/160403
https://doi.org/10.1016/j.plaphy.2024.108569
Access Level:acceso abierto
Palabra clave:Antioxidant activity
Copper
Halophyte
Nitrate
Photosynthesis
Sarcocornia fruticosa
Stress tolerance
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spelling Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper ExcessValle Romero, PedroCastellanos, Eloy ManuelLuque, Carlos J.Flores Duarte, Noris J.Romano Rodríguez, ElenaRedondo Gómez, SusanaRodríguez Llorente, Ignacio DavidPajuelo Domínguez, EloísaMateos Naranjo, EnriqueAntioxidant activityCopperHalophyteNitratePhotosynthesisSarcocornia fruticosaStress toleranceCoexistence impact of pollutants of different nature on halophytes tolerance to metal excess has not been thoroughly examined, and plant functional responses described so far do not follow a clear pattern. Using the Cu-tolerant halophyte Sarcocornia fruticosa as a model species, we conducted a greenhouse experiment to evaluate the impact of two concentration of copper (0 and 12 mM CuSO4) in combination with three nitrate levels (2, 14 and 50 mM KNO3) on plant growth, photosynthetic apparatus performance and ROS-scavenging enzymes system. The results revealed that S. fruticosa was able to grow adequately even when exposed to high concentrations of copper and nitrate. This response was linked to the plant capacity to uptake and retain a large amount of copper in its roots (up to 1500 mg kg−1 Cu), preventing its transport to aerial parts. This control of translocation was further magnified with nitrate concentration increment. Likewise, although Cu excess impaired S. fruticosa carbon assimilation capacity, the plant was able to downregulate its light-harvesting complexes function, as indicated its lowers ETR values, especially at 12 mM Cu + 50 mM NO3. This downregulation would contribute to avoid excess energy absorption and transformation. In addition, this strategy of avoiding excess energy was accompanied by the upregulation of all ROS-scavenging enzymes, a response that was further enhanced by the increase in nitrate concentration. Therefore, we conclude that the coexistence of nitrate would favor S. fruticosa tolerance to copper excess, and this effect is mediated by the combined activation of several tolerance mechanisms.Ministerio de Ciencia, Innovación y Universidades PID2021-124750NB-I00European Union TED2021-131605B–I00ElsevierMicrobiología y ParasitologíaBiología Vegetal y EcologíaMinisterio de Ciencia, Innovación y Universidades (MICINN). EspañaEuropean Union (UE)2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/160403https://doi.org/10.1016/j.plaphy.2024.108569reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésPlant Physiology and Biochemistry, 210, 108569.PID2021-124750NB-I00TED2021-131605B–I00https://doi.org/10.1016/j.plaphy.2024.108569info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1604032026-06-17T12:51:07Z
dc.title.none.fl_str_mv Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
title Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
spellingShingle Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
Valle Romero, Pedro
Antioxidant activity
Copper
Halophyte
Nitrate
Photosynthesis
Sarcocornia fruticosa
Stress tolerance
title_short Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
title_full Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
title_fullStr Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
title_full_unstemmed Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
title_sort Nitrate Modulates the Physiological Tolerance Responses of the Halophytic Species Sarcocornia Fruticosa to Copper Excess
dc.creator.none.fl_str_mv Valle Romero, Pedro
Castellanos, Eloy Manuel
Luque, Carlos J.
Flores Duarte, Noris J.
Romano Rodríguez, Elena
Redondo Gómez, Susana
Rodríguez Llorente, Ignacio David
Pajuelo Domínguez, Eloísa
Mateos Naranjo, Enrique
author Valle Romero, Pedro
author_facet Valle Romero, Pedro
Castellanos, Eloy Manuel
Luque, Carlos J.
Flores Duarte, Noris J.
Romano Rodríguez, Elena
Redondo Gómez, Susana
Rodríguez Llorente, Ignacio David
Pajuelo Domínguez, Eloísa
Mateos Naranjo, Enrique
author_role author
author2 Castellanos, Eloy Manuel
Luque, Carlos J.
Flores Duarte, Noris J.
Romano Rodríguez, Elena
Redondo Gómez, Susana
Rodríguez Llorente, Ignacio David
Pajuelo Domínguez, Eloísa
Mateos Naranjo, Enrique
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Microbiología y Parasitología
Biología Vegetal y Ecología
Ministerio de Ciencia, Innovación y Universidades (MICINN). España
European Union (UE)
dc.subject.none.fl_str_mv Antioxidant activity
Copper
Halophyte
Nitrate
Photosynthesis
Sarcocornia fruticosa
Stress tolerance
topic Antioxidant activity
Copper
Halophyte
Nitrate
Photosynthesis
Sarcocornia fruticosa
Stress tolerance
description Coexistence impact of pollutants of different nature on halophytes tolerance to metal excess has not been thoroughly examined, and plant functional responses described so far do not follow a clear pattern. Using the Cu-tolerant halophyte Sarcocornia fruticosa as a model species, we conducted a greenhouse experiment to evaluate the impact of two concentration of copper (0 and 12 mM CuSO4) in combination with three nitrate levels (2, 14 and 50 mM KNO3) on plant growth, photosynthetic apparatus performance and ROS-scavenging enzymes system. The results revealed that S. fruticosa was able to grow adequately even when exposed to high concentrations of copper and nitrate. This response was linked to the plant capacity to uptake and retain a large amount of copper in its roots (up to 1500 mg kg−1 Cu), preventing its transport to aerial parts. This control of translocation was further magnified with nitrate concentration increment. Likewise, although Cu excess impaired S. fruticosa carbon assimilation capacity, the plant was able to downregulate its light-harvesting complexes function, as indicated its lowers ETR values, especially at 12 mM Cu + 50 mM NO3. This downregulation would contribute to avoid excess energy absorption and transformation. In addition, this strategy of avoiding excess energy was accompanied by the upregulation of all ROS-scavenging enzymes, a response that was further enhanced by the increase in nitrate concentration. Therefore, we conclude that the coexistence of nitrate would favor S. fruticosa tolerance to copper excess, and this effect is mediated by the combined activation of several tolerance mechanisms.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/160403
https://doi.org/10.1016/j.plaphy.2024.108569
url https://hdl.handle.net/11441/160403
https://doi.org/10.1016/j.plaphy.2024.108569
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Plant Physiology and Biochemistry, 210, 108569.
PID2021-124750NB-I00
TED2021-131605B–I00
https://doi.org/10.1016/j.plaphy.2024.108569
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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