Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification
[EN] 1. Intrinsic water use efficiency (WUEi) reflects the trade-off between photo- synthetic carbon gain and water loss through stomatal conductance and is key for understanding dryland plant responses to climate change. Stipa tenacissima is a perennial tussock C3 grass with an opportunistic, droug...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universidad de León |
| Repositorio: | BULERIA. Repositorio Institucional de la Universidad de León |
| OAI Identifier: | oai:buleria.unileon.es:10612/20866 |
| Acceso en línea: | https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2435.14518 https://hdl.handle.net/10612/20866 |
| Access Level: | acceso abierto |
| Palabra clave: | Ecología. Medio ambiente Climate aridification Drought avoidance Drylands Foliar nutrients Intrinsic water use efficiency Stipa tenacissima Stomatal regulation Water and nitrogen co-limitation 2508.13 Humedad del Suelo 2511.02 Biología de Suelos 2417.13 Ecología Vegetal 2502.03 Bioclimatología |
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| dc.title.none.fl_str_mv |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification |
| title |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification |
| spellingShingle |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification Ren, Wei Ecología. Medio ambiente Climate aridification Drought avoidance Drylands Foliar nutrients Intrinsic water use efficiency Stipa tenacissima Stomatal regulation Water and nitrogen co-limitation 2508.13 Humedad del Suelo 2511.02 Biología de Suelos 2417.13 Ecología Vegetal 2502.03 Bioclimatología |
| title_short |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification |
| title_full |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification |
| title_fullStr |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification |
| title_full_unstemmed |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification |
| title_sort |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridification |
| dc.creator.none.fl_str_mv |
Ren, Wei García Palacios, Pablo Soliveres Codina, Santiago Prieto Aguilar, Iván Maestre Gil, Fernando Tomás Querejeta Mercader, José Ignacio |
| author |
Ren, Wei |
| author_facet |
Ren, Wei García Palacios, Pablo Soliveres Codina, Santiago Prieto Aguilar, Iván Maestre Gil, Fernando Tomás Querejeta Mercader, José Ignacio |
| author_role |
author |
| author2 |
García Palacios, Pablo Soliveres Codina, Santiago Prieto Aguilar, Iván Maestre Gil, Fernando Tomás Querejeta Mercader, José Ignacio |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Ecologia Facultad de Ciencias Biologicas y Ambientales |
| dc.subject.none.fl_str_mv |
Ecología. Medio ambiente Climate aridification Drought avoidance Drylands Foliar nutrients Intrinsic water use efficiency Stipa tenacissima Stomatal regulation Water and nitrogen co-limitation 2508.13 Humedad del Suelo 2511.02 Biología de Suelos 2417.13 Ecología Vegetal 2502.03 Bioclimatología |
| topic |
Ecología. Medio ambiente Climate aridification Drought avoidance Drylands Foliar nutrients Intrinsic water use efficiency Stipa tenacissima Stomatal regulation Water and nitrogen co-limitation 2508.13 Humedad del Suelo 2511.02 Biología de Suelos 2417.13 Ecología Vegetal 2502.03 Bioclimatología |
| description |
[EN] 1. Intrinsic water use efficiency (WUEi) reflects the trade-off between photo- synthetic carbon gain and water loss through stomatal conductance and is key for understanding dryland plant responses to climate change. Stipa tenacissima is a perennial tussock C3 grass with an opportunistic, drought- avoiding water use strategy that dominates arid and semiarid steppes across the western Mediterranean region. However, its ecophysiological responses to aridification and woody shrub encroachment, a major land-use change in drylands worldwide, are not well-understood. 2. We investigated the variations in leaf stable isotopes (δ18 O, δ13 C, δ15 N), nutrient concentrations (N, P, K), and culm water content and isotopic composition (δ18 O,δ2H) of paired pure-grass and shrub-encroached S. tenacissima steppes along a 350 km aridity gradient in Spain (10 sites, 160 individuals). 3. Culm water isotopes revealed that S. tenacissima is a shallow-rooted grass that depends heavily on recent rainwater for water uptake, which may render it vulnerable to increasingly irregular rainfall combined with faster topsoil drying under climate warming and aridification. With increasing aridity, S. tenacissima enhanced leaf-level WUEi through more stringent stomatal regulation of plant water flux and carbon assimilation (higher δ13C and δ18 O), reaching exceptionally high δ13C values (−23‰ to −21‰) at the most arid steppes. Foliar N concentration was remarkably low across sites regardless of woody shrub encroachment, evidencing severe water and N co-limitation of photosynthesis and productivity. Shrub encroachment decreased leaf P and K but did not affect S. tenacissima water status. Perennial grass cover decreased markedly with both declining winter rainfall and shrub encroachment suggesting population-level rather than individual-level responses of S. tenacissima to these changes.4. The fundamental physiological constraints of photosynthetic C3 metabolism com-bined with low foliar N content may hamper the ability of S. tenacissima and other drought-avoider species with shallow roots to achieve further adaptive improve-ments in WUEi under increasing climatic stress. A drought-avoiding water use strategy based on early stomatal closure and photosynthesis suppression during prolonged rainless periods may thus compromise the capacity of semiarid S. tena-cissima steppes to maintain perennial grass cover, sustain productivity and cope with ongoing climate aridification at the drier parts of their current distribution |
| 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://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2435.14518 https://hdl.handle.net/10612/20866 |
| url |
https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2435.14518 https://hdl.handle.net/10612/20866 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
info:eu-repo/grantAgreement/MICINN//EUR2022-134048 info:eu-repo/grantAgreement/MINECO/Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/CGL2013-48753-R info:eu-repo/grantAgreement/MICINN/Programa Nacional de Investigación Fundamental/CGL2010–21064 info:eu-repo/grantAgreement/MEC//AGL2006-11234 info:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/PID2020-113021RA-I00 info:eu-repo/grantAgreemen/AEI/Programa Estatal de Generación de Conocimiento y Fortalecimiento Científico y Tecnológico del Sistema de I+D+i/PID2019-107382RB-I00/ES/Diversidad funcional de estrategias de uso de agua y nutrientes por las plantas en ecosistemas mediterráneos y secos info:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/RTI2018- 098895-A-100 |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
| dc.publisher.none.fl_str_mv |
British Ecological Society John Wiley & Sons Ltd |
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British Ecological Society John Wiley & Sons Ltd |
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reponame:BULERIA. Repositorio Institucional de la Universidad de León instname:Universidad de León |
| instname_str |
Universidad de León |
| reponame_str |
BULERIA. Repositorio Institucional de la Universidad de León |
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BULERIA. Repositorio Institucional de la Universidad de León |
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| _version_ |
1869424474981400577 |
| spelling |
Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: responses of a drought‐avoider perennial grass to climate aridificationRen, WeiGarcía Palacios, PabloSoliveres Codina, SantiagoPrieto Aguilar, IvánMaestre Gil, Fernando TomásQuerejeta Mercader, José IgnacioEcología. Medio ambienteClimate aridificationDrought avoidanceDrylandsFoliar nutrientsIntrinsic water use efficiencyStipa tenacissimaStomatal regulationWater and nitrogen co-limitation2508.13 Humedad del Suelo2511.02 Biología de Suelos2417.13 Ecología Vegetal2502.03 Bioclimatología[EN] 1. Intrinsic water use efficiency (WUEi) reflects the trade-off between photo- synthetic carbon gain and water loss through stomatal conductance and is key for understanding dryland plant responses to climate change. Stipa tenacissima is a perennial tussock C3 grass with an opportunistic, drought- avoiding water use strategy that dominates arid and semiarid steppes across the western Mediterranean region. However, its ecophysiological responses to aridification and woody shrub encroachment, a major land-use change in drylands worldwide, are not well-understood. 2. We investigated the variations in leaf stable isotopes (δ18 O, δ13 C, δ15 N), nutrient concentrations (N, P, K), and culm water content and isotopic composition (δ18 O,δ2H) of paired pure-grass and shrub-encroached S. tenacissima steppes along a 350 km aridity gradient in Spain (10 sites, 160 individuals). 3. Culm water isotopes revealed that S. tenacissima is a shallow-rooted grass that depends heavily on recent rainwater for water uptake, which may render it vulnerable to increasingly irregular rainfall combined with faster topsoil drying under climate warming and aridification. With increasing aridity, S. tenacissima enhanced leaf-level WUEi through more stringent stomatal regulation of plant water flux and carbon assimilation (higher δ13C and δ18 O), reaching exceptionally high δ13C values (−23‰ to −21‰) at the most arid steppes. Foliar N concentration was remarkably low across sites regardless of woody shrub encroachment, evidencing severe water and N co-limitation of photosynthesis and productivity. Shrub encroachment decreased leaf P and K but did not affect S. tenacissima water status. Perennial grass cover decreased markedly with both declining winter rainfall and shrub encroachment suggesting population-level rather than individual-level responses of S. tenacissima to these changes.4. The fundamental physiological constraints of photosynthetic C3 metabolism com-bined with low foliar N content may hamper the ability of S. tenacissima and other drought-avoider species with shallow roots to achieve further adaptive improve-ments in WUEi under increasing climatic stress. A drought-avoiding water use strategy based on early stomatal closure and photosynthesis suppression during prolonged rainless periods may thus compromise the capacity of semiarid S. tena-cissima steppes to maintain perennial grass cover, sustain productivity and cope with ongoing climate aridification at the drier parts of their current distributionSISpanish Ministry of Science and Innovation, Grant/Award Number: EUR2022-134048, PRX19/00301, PID2019-107382RB-I00, CGL2013- 48753-R, CGL2010-21064, AGL- 2006-11234, PID2020-113021RA-I00, RTI2018- 098895-A-100 and RYC- 2016-20604; Fundación BBVA, Grant/ Award Number: BIOCON06/105; Universidad Rey Juan Carlos, Grant/Award Number: URJC-RNT- 063-2; European Research Council, Grant/Award Number: 647038; Generalitat Valenciana, Grant/ Award Number: CIDEGENT/2018/041; National Natural Science Foundation of China, Grant/Award Number: 41801091; China Postdoctoral Science Foundation, Grant/Award Number: 2018M643542 and 2019T120868; Fundación Séneca, Grant/ Award Number: 20654/JLI/1British Ecological SocietyJohn Wiley & Sons LtdEcologiaFacultad de Ciencias Biologicas y Ambientales2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2435.14518https://hdl.handle.net/10612/20866reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad de LeónInglésinfo:eu-repo/grantAgreement/MICINN//EUR2022-134048info:eu-repo/grantAgreement/MINECO/Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/CGL2013-48753-Rinfo:eu-repo/grantAgreement/MICINN/Programa Nacional de Investigación Fundamental/CGL2010–21064info:eu-repo/grantAgreement/MEC//AGL2006-11234info:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/PID2020-113021RA-I00info:eu-repo/grantAgreemen/AEI/Programa Estatal de Generación de Conocimiento y Fortalecimiento Científico y Tecnológico del Sistema de I+D+i/PID2019-107382RB-I00/ES/Diversidad funcional de estrategias de uso de agua y nutrientes por las plantas en ecosistemas mediterráneos y secosinfo:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/RTI2018- 098895-A-100http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/208662026-06-24T12:43:27Z |
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15,300724 |