Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance
Plant acclimation to varying light environments can enhance productivity. However, limited research exists on how plants re-acclimate to sunlight after shading, despite the increasing use of transient crop shading techniques to mitigate climate change impacts. This study focused on grapevine, a spec...
| Autores principales: | , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2024
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/20737 https://onlinelibrary.wiley.com/doi/10.1111/ppl.14636 https://doi.org/10.1111/ppl.14636 |
| _version_ | 1855038291211976704 |
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| author | Gallo, Agustina Eugenia Christophe, Angélique Poupard, Magali Boulord, Romain Rolland, Gaëlle Prieto, Jorge Alejandro Simonneau, Thierry Pallas, Benoît |
| author_browse | Boulord, Romain Christophe, Angélique Gallo, Agustina Eugenia Pallas, Benoît Poupard, Magali Prieto, Jorge Alejandro Rolland, Gaëlle Simonneau, Thierry |
| author_facet | Gallo, Agustina Eugenia Christophe, Angélique Poupard, Magali Boulord, Romain Rolland, Gaëlle Prieto, Jorge Alejandro Simonneau, Thierry Pallas, Benoît |
| author_sort | Gallo, Agustina Eugenia |
| collection | INTA Digital |
| description | Plant acclimation to varying light environments can enhance productivity. However, limited research exists on how plants re-acclimate to sunlight after shading, despite the increasing use of transient crop shading techniques to mitigate climate change impacts. This study focused on grapevine, a species highly responsive to shade, to explore the effects of prolonged shading on photosynthetic re-acclimation of plants upon sun re-exposure. An experiment was conducted using pot-grown plants subjected to different shading durations and then transferred to sunlight conditions. Results varied depending on whether leaves developed under sun or shade and on the duration of shading. Under shade, stomatal conductance decreased by up to 50%, while photosynthesis was reduced by 30–60%, with longer shading periods causing a greater decrease. Upon sun re-exposure of shaded plants, sun-developed leaves gradually reached 100% of the stomatal conductance of sun-control plants, but their photosynthesis remained at 70%. Despite reduced photosynthesis, analyses of non-structural carbohydrate (NSC) contents revealed that carbohydrate pools were maintained in shaded leaves, likely due to reduced carbon demand by plant sinks under shade. The maintenance of NSC limited optimal photosynthetic recovery upon sunlight re-exposure. In contrast, shade-developed leaves did not increase photosynthesis upon transfer to sunlight due to irreversible morphological changes. This study provides new insights into the impact of shade acclimation on biochemical, physiological and morphological processes when plants are subjected to changing light environments. |
| format | info:ar-repo/semantics/artículo |
| id | INTA20737 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA207372024-12-23T11:51:32Z Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance Gallo, Agustina Eugenia Christophe, Angélique Poupard, Magali Boulord, Romain Rolland, Gaëlle Prieto, Jorge Alejandro Simonneau, Thierry Pallas, Benoît Vid Fotosíntesis Carbohidratos Conductancia Estomática Aclimatación Grapevines Photosynthesis Carbohydrates Stomatal Conductance Acclimatization Plant acclimation to varying light environments can enhance productivity. However, limited research exists on how plants re-acclimate to sunlight after shading, despite the increasing use of transient crop shading techniques to mitigate climate change impacts. This study focused on grapevine, a species highly responsive to shade, to explore the effects of prolonged shading on photosynthetic re-acclimation of plants upon sun re-exposure. An experiment was conducted using pot-grown plants subjected to different shading durations and then transferred to sunlight conditions. Results varied depending on whether leaves developed under sun or shade and on the duration of shading. Under shade, stomatal conductance decreased by up to 50%, while photosynthesis was reduced by 30–60%, with longer shading periods causing a greater decrease. Upon sun re-exposure of shaded plants, sun-developed leaves gradually reached 100% of the stomatal conductance of sun-control plants, but their photosynthesis remained at 70%. Despite reduced photosynthesis, analyses of non-structural carbohydrate (NSC) contents revealed that carbohydrate pools were maintained in shaded leaves, likely due to reduced carbon demand by plant sinks under shade. The maintenance of NSC limited optimal photosynthetic recovery upon sunlight re-exposure. In contrast, shade-developed leaves did not increase photosynthesis upon transfer to sunlight due to irreversible morphological changes. This study provides new insights into the impact of shade acclimation on biochemical, physiological and morphological processes when plants are subjected to changing light environments. EEA Junín Fil: Gallo, Agustina Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina Fil: Gallo, Agustina Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Gallo, Agustina Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Christophe, Angélique. Université de Montpellier-INRAE. Institut Agro Montpellier; Francia Fil: Poupard, Magali. Université de Montpellier-INRAE. Institut Agro Montpellier; Francia Fil: Boulord, Romain. Université de Montpellier-INRAE. Institut Agro Montpellier; Francia Fil: Rolland, Gaëlle. Université de Montpellier-INRAE. Institut Agro Montpellier; Francia Fil: Prieto, Jorge Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Simonneau, Thierry. Université de Montpellier-INRAE. Institut Agro Montpellier; Francia Fil: Pallas, Benoît. Université de Montpellier-INRAE. Institut Agro Montpellier; Francia 2024-12-23T11:48:39Z 2024-12-23T11:48:39Z 2024-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/20737 https://onlinelibrary.wiley.com/doi/10.1111/ppl.14636 0031-9317 1399-3054 https://doi.org/10.1111/ppl.14636 eng 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) application/pdf Wiley Physiologia Plantarum 176 (6) : e14636. (November/December 2024) |
| spellingShingle | Vid Fotosíntesis Carbohidratos Conductancia Estomática Aclimatación Grapevines Photosynthesis Carbohydrates Stomatal Conductance Acclimatization Gallo, Agustina Eugenia Christophe, Angélique Poupard, Magali Boulord, Romain Rolland, Gaëlle Prieto, Jorge Alejandro Simonneau, Thierry Pallas, Benoît Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance |
| title | Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance |
| title_full | Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance |
| title_fullStr | Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance |
| title_full_unstemmed | Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance |
| title_short | Effects of acclimation to long-term shading on photosynthesis in grapevines: roles of non-structural carbohydrates and stomatal conductance |
| title_sort | effects of acclimation to long term shading on photosynthesis in grapevines roles of non structural carbohydrates and stomatal conductance |
| topic | Vid Fotosíntesis Carbohidratos Conductancia Estomática Aclimatación Grapevines Photosynthesis Carbohydrates Stomatal Conductance Acclimatization |
| url | http://hdl.handle.net/20.500.12123/20737 https://onlinelibrary.wiley.com/doi/10.1111/ppl.14636 https://doi.org/10.1111/ppl.14636 |
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