Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species
Recent advances at the molecular level are introducing a new scenario that needs to be integrated into the analysis of plant hydraulic properties. Although it is not yet clear to what extent this scenario alters the current proposal for the hydraulic circuit models, it introduces new insights when s...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Oxford University Press
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/8737 https://academic.oup.com/aobpla/article/doi/10.1093/aobpla/plv136/1808394 https://doi.org/10.1093/aobpla/plv136 |
| _version_ | 1855036089637535744 |
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| author | Vitali, Victoria Andrea Bellati, Jorge Soto, Gabriela Cynthia Ayub, Nicolás Daniel Amodeo, Gabriela |
| author_browse | Amodeo, Gabriela Ayub, Nicolás Daniel Bellati, Jorge Soto, Gabriela Cynthia Vitali, Victoria Andrea |
| author_facet | Vitali, Victoria Andrea Bellati, Jorge Soto, Gabriela Cynthia Ayub, Nicolás Daniel Amodeo, Gabriela |
| author_sort | Vitali, Victoria Andrea |
| collection | INTA Digital |
| description | Recent advances at the molecular level are introducing a new scenario that needs to be integrated into the analysis of plant hydraulic properties. Although it is not yet clear to what extent this scenario alters the current proposal for the hydraulic circuit models, it introduces new insights when studying plants that are able to easily overcome water restrictions. In this context, our aim was to explore water adjustments in a halotolerant model (Beta vulgaris) by studying the coordination between the root in terms of root hydraulic conductivity (Lpr) and the shoot as reflected in the stomatal conductance (gs). The root water pathways were also analysed in terms of root suberization (apoplastic barrier) and aquaporin transcript levels (cell-to-cell pathway). Beta vulgaris showed the ability to rapidly lose (4 h) and gain (24 h) turgor when submitted to salt stress (200 mM). The reduction profile observed in Lpr and gs was consistent with a coupled process. The tuning of the root water flow involved small variations in the studied aquaporin's transcripts before anatomical modifications occurred. Exploring Lpr enhancement after halting the stress contributed to show not only a different profile in restoring Lpr but also the capacity to uncouple Lpr from gs. Beta vulgaris root plays a key role and can anticipate water loss before the aerial water status is affected. |
| format | info:ar-repo/semantics/artículo |
| id | INTA8737 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | INTA87372021-02-24T15:51:33Z Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species Vitali, Victoria Andrea Bellati, Jorge Soto, Gabriela Cynthia Ayub, Nicolás Daniel Amodeo, Gabriela Beta vulgaris Conductancia Hidráulica de Raíces Estrés Osmótico Conductancia Estomática Root Hydraulic Conductivity Osmotic Stress Stomatal Conductance Aquaporins Acuaporinas Recent advances at the molecular level are introducing a new scenario that needs to be integrated into the analysis of plant hydraulic properties. Although it is not yet clear to what extent this scenario alters the current proposal for the hydraulic circuit models, it introduces new insights when studying plants that are able to easily overcome water restrictions. In this context, our aim was to explore water adjustments in a halotolerant model (Beta vulgaris) by studying the coordination between the root in terms of root hydraulic conductivity (Lpr) and the shoot as reflected in the stomatal conductance (gs). The root water pathways were also analysed in terms of root suberization (apoplastic barrier) and aquaporin transcript levels (cell-to-cell pathway). Beta vulgaris showed the ability to rapidly lose (4 h) and gain (24 h) turgor when submitted to salt stress (200 mM). The reduction profile observed in Lpr and gs was consistent with a coupled process. The tuning of the root water flow involved small variations in the studied aquaporin's transcripts before anatomical modifications occurred. Exploring Lpr enhancement after halting the stress contributed to show not only a different profile in restoring Lpr but also the capacity to uncouple Lpr from gs. Beta vulgaris root plays a key role and can anticipate water loss before the aerial water status is affected. Instituto de Genética Fil: Vitali, Victoria Andrea. Universidad de Buenos Aires. Instituto de Biodiversidad y Biología Experimental. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Bellati, Jorge. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Soto, Gabriela Cinthia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ayub, Nicolás Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Amodeo, Gabriela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2021-02-24T15:44:10Z 2021-02-24T15:44:10Z 2015-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/8737 https://academic.oup.com/aobpla/article/doi/10.1093/aobpla/plv136/1808394 2041-2851 https://doi.org/10.1093/aobpla/plv136 eng info:eu-repo/semantics/openAccess 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 Oxford University Press AoB Plants 7 : plv136 (Noviembre 2015) |
| spellingShingle | Beta vulgaris Conductancia Hidráulica de Raíces Estrés Osmótico Conductancia Estomática Root Hydraulic Conductivity Osmotic Stress Stomatal Conductance Aquaporins Acuaporinas Vitali, Victoria Andrea Bellati, Jorge Soto, Gabriela Cynthia Ayub, Nicolás Daniel Amodeo, Gabriela Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species |
| title | Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species |
| title_full | Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species |
| title_fullStr | Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species |
| title_full_unstemmed | Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species |
| title_short | Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species |
| title_sort | root hydraulic conductivity and adjustments in stomatal conductance hydraulic strategy in response to salt stress in a halotolerant species |
| topic | Beta vulgaris Conductancia Hidráulica de Raíces Estrés Osmótico Conductancia Estomática Root Hydraulic Conductivity Osmotic Stress Stomatal Conductance Aquaporins Acuaporinas |
| url | http://hdl.handle.net/20.500.12123/8737 https://academic.oup.com/aobpla/article/doi/10.1093/aobpla/plv136/1808394 https://doi.org/10.1093/aobpla/plv136 |
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