Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina

Autores: Peri, Pablo Luis; Gyenge, Javier; Fernandez, María Elena
Año de publicación: 2024
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: Comparative studies of basic physiological performance are needed to give insight of how grass species survive and grow under current and more severe drought predicted in the framework of climate change in arid steppe grasslands. In this study, photosynthetic performance and stomatal conductance (gs) were measured in leaves of six main grass species of southern Patagonian steppe, after exposing plants to different conditions of water availability. There was a negative linear relationship between photosynthesis at light saturation (Pmax) and plant water stress, expressed as pre-dawn leaf water potential (ψpd), mainly explained by the reduction in gs. A negative linear relationship was also observed between the photosynthetic efficiency (α) and the ψpd of plants, but only under moderate to severe water stress conditions. Grass species had different response to water stress graded in the following order: Pappostipa chrysophylla > Festuca gracillima > Rytidosperma virescens > Poa dusenii > Bromus setifolius. These results can assist to understand the natural spatial distribution of these species under arid conditions, to predict their performance under changing climate, and to select proper species for restoration plans in steppe grasslands.
EEA Santa Cruz
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.
Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.
Fil: Gyenge, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.
Fil: Fernandez, María Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.
Fil: Fernandez, María Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.
Fuente: Journal of Arid Environments 224 : 105219. (October 2024)
Materia: Drought Stress
Leaf Water Potential
Stomatal Conductance
Steppes
Grasslands
Physiological Stress Resistance
Water Availability
Estrés de Sequia
Potencial Hídrico Foliar
Conductancia Estomática
Estepa
Pradera
Resistencia Fisiológica al Estrés
Disponibilidad del Agua
Grass Species
Photosynthetic Performance
Pre-dawn Leaf Water Potential
Especies de Pasto
Rendimiento Fotosintético
Potencial Hídrico de las Hojas antes del Amanecer
Región Patagónica
Nivel de accesibilidad: acceso restringido
Condiciones de uso: http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Institución: Instituto Nacional de Tecnología Agropecuaria
OAI Identificador: oai:localhost:20.500.12123/18433

Acceder

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spelling	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, ArgentinaPeri, Pablo LuisGyenge, JavierFernandez, María ElenaDrought StressLeaf Water PotentialStomatal ConductanceSteppesGrasslandsPhysiological Stress ResistanceWater AvailabilityEstrés de SequiaPotencial Hídrico FoliarConductancia EstomáticaEstepaPraderaResistencia Fisiológica al EstrésDisponibilidad del AguaGrass SpeciesPhotosynthetic PerformancePre-dawn Leaf Water PotentialEspecies de PastoRendimiento FotosintéticoPotencial Hídrico de las Hojas antes del AmanecerRegión PatagónicaComparative studies of basic physiological performance are needed to give insight of how grass species survive and grow under current and more severe drought predicted in the framework of climate change in arid steppe grasslands. In this study, photosynthetic performance and stomatal conductance (gs) were measured in leaves of six main grass species of southern Patagonian steppe, after exposing plants to different conditions of water availability. There was a negative linear relationship between photosynthesis at light saturation (Pmax) and plant water stress, expressed as pre-dawn leaf water potential (ψpd), mainly explained by the reduction in gs. A negative linear relationship was also observed between the photosynthetic efficiency (α) and the ψpd of plants, but only under moderate to severe water stress conditions. Grass species had different response to water stress graded in the following order: Pappostipa chrysophylla > Festuca gracillima > Rytidosperma virescens > Poa dusenii > Bromus setifolius. These results can assist to understand the natural spatial distribution of these species under arid conditions, to predict their performance under changing climate, and to select proper species for restoration plans in steppe grasslands.EEA Santa CruzFil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.Fil: Gyenge, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.Fil: Fernandez, María Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.Fil: Fernandez, María Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.Elsevier2024-07-10T10:41:10Z2024-07-10T10:41:10Z2024-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/18433https://www.sciencedirect.com/science/article/abs/pii/S0140196324000995Peri P.L.; Gyenge J.; Fernández M.E. (2024) Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina. Journal of Arid Environments 224: 105219. https://doi.org/10.1016/j.jaridenv.2024.1052190140-1963https://doi.org/10.1016/j.jaridenv.2024.105219Journal of Arid Environments 224 : 105219. (October 2024)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-16T09:31:43Zoai:localhost:20.500.12123/18433instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-16 09:31:44.244INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
title	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
spellingShingle	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina Peri, Pablo Luis Drought Stress Leaf Water Potential Stomatal Conductance Steppes Grasslands Physiological Stress Resistance Water Availability Estrés de Sequia Potencial Hídrico Foliar Conductancia Estomática Estepa Pradera Resistencia Fisiológica al Estrés Disponibilidad del Agua Grass Species Photosynthetic Performance Pre-dawn Leaf Water Potential Especies de Pasto Rendimiento Fotosintético Potencial Hídrico de las Hojas antes del Amanecer Región Patagónica
title_short	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
title_full	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
title_fullStr	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
title_full_unstemmed	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
title_sort	Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
dc.creator.none.fl_str_mv	Peri, Pablo Luis Gyenge, Javier Fernandez, María Elena
author	Peri, Pablo Luis
author_facet	Peri, Pablo Luis Gyenge, Javier Fernandez, María Elena
author_role	author
author2	Gyenge, Javier Fernandez, María Elena
author2_role	author author
dc.subject.none.fl_str_mv	Drought Stress Leaf Water Potential Stomatal Conductance Steppes Grasslands Physiological Stress Resistance Water Availability Estrés de Sequia Potencial Hídrico Foliar Conductancia Estomática Estepa Pradera Resistencia Fisiológica al Estrés Disponibilidad del Agua Grass Species Photosynthetic Performance Pre-dawn Leaf Water Potential Especies de Pasto Rendimiento Fotosintético Potencial Hídrico de las Hojas antes del Amanecer Región Patagónica
topic	Drought Stress Leaf Water Potential Stomatal Conductance Steppes Grasslands Physiological Stress Resistance Water Availability Estrés de Sequia Potencial Hídrico Foliar Conductancia Estomática Estepa Pradera Resistencia Fisiológica al Estrés Disponibilidad del Agua Grass Species Photosynthetic Performance Pre-dawn Leaf Water Potential Especies de Pasto Rendimiento Fotosintético Potencial Hídrico de las Hojas antes del Amanecer Región Patagónica
dc.description.none.fl_txt_mv	Comparative studies of basic physiological performance are needed to give insight of how grass species survive and grow under current and more severe drought predicted in the framework of climate change in arid steppe grasslands. In this study, photosynthetic performance and stomatal conductance (gs) were measured in leaves of six main grass species of southern Patagonian steppe, after exposing plants to different conditions of water availability. There was a negative linear relationship between photosynthesis at light saturation (Pmax) and plant water stress, expressed as pre-dawn leaf water potential (ψpd), mainly explained by the reduction in gs. A negative linear relationship was also observed between the photosynthetic efficiency (α) and the ψpd of plants, but only under moderate to severe water stress conditions. Grass species had different response to water stress graded in the following order: Pappostipa chrysophylla > Festuca gracillima > Rytidosperma virescens > Poa dusenii > Bromus setifolius. These results can assist to understand the natural spatial distribution of these species under arid conditions, to predict their performance under changing climate, and to select proper species for restoration plans in steppe grasslands. EEA Santa Cruz Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Gyenge, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Fernandez, María Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Fernandez, María Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.
description	Comparative studies of basic physiological performance are needed to give insight of how grass species survive and grow under current and more severe drought predicted in the framework of climate change in arid steppe grasslands. In this study, photosynthetic performance and stomatal conductance (gs) were measured in leaves of six main grass species of southern Patagonian steppe, after exposing plants to different conditions of water availability. There was a negative linear relationship between photosynthesis at light saturation (Pmax) and plant water stress, expressed as pre-dawn leaf water potential (ψpd), mainly explained by the reduction in gs. A negative linear relationship was also observed between the photosynthetic efficiency (α) and the ψpd of plants, but only under moderate to severe water stress conditions. Grass species had different response to water stress graded in the following order: Pappostipa chrysophylla > Festuca gracillima > Rytidosperma virescens > Poa dusenii > Bromus setifolius. These results can assist to understand the natural spatial distribution of these species under arid conditions, to predict their performance under changing climate, and to select proper species for restoration plans in steppe grasslands.
publishDate	2024
dc.date.none.fl_str_mv	2024-07-10T10:41:10Z 2024-07-10T10:41:10Z 2024-10
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	http://hdl.handle.net/20.500.12123/18433 https://www.sciencedirect.com/science/article/abs/pii/S0140196324000995 Peri P.L.; Gyenge J.; Fernández M.E. (2024) Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina. Journal of Arid Environments 224: 105219. https://doi.org/10.1016/j.jaridenv.2024.105219 0140-1963 https://doi.org/10.1016/j.jaridenv.2024.105219
url	http://hdl.handle.net/20.500.12123/18433 https://www.sciencedirect.com/science/article/abs/pii/S0140196324000995 https://doi.org/10.1016/j.jaridenv.2024.105219
identifier_str_mv	Peri P.L.; Gyenge J.; Fernández M.E. (2024) Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina. Journal of Arid Environments 224: 105219. https://doi.org/10.1016/j.jaridenv.2024.105219 0140-1963
dc.language.none.fl_str_mv	eng
language	eng
dc.rights.none.fl_str_mv	info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv	restrictedAccess
rights_invalid_str_mv	http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	Elsevier
publisher.none.fl_str_mv	Elsevier
dc.source.none.fl_str_mv	Journal of Arid Environments 224 : 105219. (October 2024) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str	INTA Digital (INTA)
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instname_str	Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv	INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv	tripaldi.nicolas@inta.gob.ar
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Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina

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