Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport
Water uptake by roots is a key adaptation of plants to aerial life. Water uptake depends on root system architecture (RSA) and tissue hydraulic properties that, together, shape the root hydraulic architecture. This work investigates how the interplay between conductivities along radial (e.g. aquapor...
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2022
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Online Access: | http://agritrop.cirad.fr/601188/ http://agritrop.cirad.fr/601188/13/601188-ed.pdf https://doi.org/10.1093/plphys/kiac281 |
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ftcirad:oai:agritrop.cirad.fr:601188 2023-06-11T04:11:29+02:00 Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport Boursiac, Yann Pradal, Christophe Bauget, Fabrice Lucas, Mikaël Delivorias, Stathis Godin, Christophe Maurel, Christophe 2022 text http://agritrop.cirad.fr/601188/ http://agritrop.cirad.fr/601188/13/601188-ed.pdf https://doi.org/10.1093/plphys/kiac281 eng eng http://agritrop.cirad.fr/601188/ Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport. Boursiac Yann, Pradal Christophe, Bauget Fabrice, Lucas Mikaël, Delivorias Stathis, Godin Christophe, Maurel Christophe. 2022. Plant Physiology, 190 (2):kiac281 : 1289-1306.https://doi.org/10.1093/plphys/kiac281 <https://doi.org/10.1093/plphys/kiac281> http://agritrop.cirad.fr/601188/13/601188-ed.pdf cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Plant Physiology F61 - Physiologie végétale - Nutrition U10 - Informatique mathématiques et statistiques Système racinaire Relation plante eau Absorption d'eau Conductance hydraulique des racines Phénotype Modélisation Physiologie végétale Arabidopsis thaliana http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_16147 http://aims.fao.org/aos/agrovoc/c_8329 http://aims.fao.org/aos/agrovoc/c_37237 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_230ab86c http://aims.fao.org/aos/agrovoc/c_25189 http://aims.fao.org/aos/agrovoc/c_33292 article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion 2022 ftcirad https://doi.org/10.1093/plphys/kiac281 2023-04-18T22:45:30Z Water uptake by roots is a key adaptation of plants to aerial life. Water uptake depends on root system architecture (RSA) and tissue hydraulic properties that, together, shape the root hydraulic architecture. This work investigates how the interplay between conductivities along radial (e.g. aquaporins) and axial (e.g. xylem vessels) pathways determines the water transport properties of highly branched RSAs as found in adult Arabidopsis (Arabidopsis thaliana) plants. A hydraulic model named HydroRoot was developed, based on multi-scale tree graph representations of RSAs. Root water flow was measured by the pressure chamber technique after successive cuts of a same root system from the tip toward the base. HydroRoot model inversion in corresponding RSAs allowed us to concomitantly determine radial and axial conductivities, providing evidence that the latter is often overestimated by classical evaluation based on the Hagen–Poiseuille law. Organizing principles of Arabidopsis primary and lateral root growth and branching were determined and used to apply the HydroRoot model to an extended set of simulated RSAs. Sensitivity analyses revealed that water transport can be co-limited by radial and axial conductances throughout the whole RSA. The number of roots that can be sectioned (intercepted) at a given distance from the base was defined as an accessible and informative indicator of RSA. The overall set of experimental and theoretical procedures was applied to plants mutated in ESKIMO1 and previously shown to have xylem collapse. This approach will be instrumental to dissect the root water transport phenotype of plants with intricate alterations in root growth or transport functions. Article in Journal/Newspaper eskimo* CIRAD: Agritrop (Centre de coopération internationale en recherche agronomique pour le développement) Hagen ENVELOPE(6.545,6.545,62.545,62.545) Plant Physiology |
institution |
Open Polar |
collection |
CIRAD: Agritrop (Centre de coopération internationale en recherche agronomique pour le développement) |
op_collection_id |
ftcirad |
language |
English |
topic |
F61 - Physiologie végétale - Nutrition U10 - Informatique mathématiques et statistiques Système racinaire Relation plante eau Absorption d'eau Conductance hydraulique des racines Phénotype Modélisation Physiologie végétale Arabidopsis thaliana http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_16147 http://aims.fao.org/aos/agrovoc/c_8329 http://aims.fao.org/aos/agrovoc/c_37237 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_230ab86c http://aims.fao.org/aos/agrovoc/c_25189 http://aims.fao.org/aos/agrovoc/c_33292 |
spellingShingle |
F61 - Physiologie végétale - Nutrition U10 - Informatique mathématiques et statistiques Système racinaire Relation plante eau Absorption d'eau Conductance hydraulique des racines Phénotype Modélisation Physiologie végétale Arabidopsis thaliana http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_16147 http://aims.fao.org/aos/agrovoc/c_8329 http://aims.fao.org/aos/agrovoc/c_37237 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_230ab86c http://aims.fao.org/aos/agrovoc/c_25189 http://aims.fao.org/aos/agrovoc/c_33292 Boursiac, Yann Pradal, Christophe Bauget, Fabrice Lucas, Mikaël Delivorias, Stathis Godin, Christophe Maurel, Christophe Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport |
topic_facet |
F61 - Physiologie végétale - Nutrition U10 - Informatique mathématiques et statistiques Système racinaire Relation plante eau Absorption d'eau Conductance hydraulique des racines Phénotype Modélisation Physiologie végétale Arabidopsis thaliana http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_16147 http://aims.fao.org/aos/agrovoc/c_8329 http://aims.fao.org/aos/agrovoc/c_37237 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_230ab86c http://aims.fao.org/aos/agrovoc/c_25189 http://aims.fao.org/aos/agrovoc/c_33292 |
description |
Water uptake by roots is a key adaptation of plants to aerial life. Water uptake depends on root system architecture (RSA) and tissue hydraulic properties that, together, shape the root hydraulic architecture. This work investigates how the interplay between conductivities along radial (e.g. aquaporins) and axial (e.g. xylem vessels) pathways determines the water transport properties of highly branched RSAs as found in adult Arabidopsis (Arabidopsis thaliana) plants. A hydraulic model named HydroRoot was developed, based on multi-scale tree graph representations of RSAs. Root water flow was measured by the pressure chamber technique after successive cuts of a same root system from the tip toward the base. HydroRoot model inversion in corresponding RSAs allowed us to concomitantly determine radial and axial conductivities, providing evidence that the latter is often overestimated by classical evaluation based on the Hagen–Poiseuille law. Organizing principles of Arabidopsis primary and lateral root growth and branching were determined and used to apply the HydroRoot model to an extended set of simulated RSAs. Sensitivity analyses revealed that water transport can be co-limited by radial and axial conductances throughout the whole RSA. The number of roots that can be sectioned (intercepted) at a given distance from the base was defined as an accessible and informative indicator of RSA. The overall set of experimental and theoretical procedures was applied to plants mutated in ESKIMO1 and previously shown to have xylem collapse. This approach will be instrumental to dissect the root water transport phenotype of plants with intricate alterations in root growth or transport functions. |
format |
Article in Journal/Newspaper |
author |
Boursiac, Yann Pradal, Christophe Bauget, Fabrice Lucas, Mikaël Delivorias, Stathis Godin, Christophe Maurel, Christophe |
author_facet |
Boursiac, Yann Pradal, Christophe Bauget, Fabrice Lucas, Mikaël Delivorias, Stathis Godin, Christophe Maurel, Christophe |
author_sort |
Boursiac, Yann |
title |
Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport |
title_short |
Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport |
title_full |
Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport |
title_fullStr |
Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport |
title_full_unstemmed |
Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport |
title_sort |
phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport |
publishDate |
2022 |
url |
http://agritrop.cirad.fr/601188/ http://agritrop.cirad.fr/601188/13/601188-ed.pdf https://doi.org/10.1093/plphys/kiac281 |
long_lat |
ENVELOPE(6.545,6.545,62.545,62.545) |
geographic |
Hagen |
geographic_facet |
Hagen |
genre |
eskimo* |
genre_facet |
eskimo* |
op_source |
Plant Physiology |
op_relation |
http://agritrop.cirad.fr/601188/ Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport. Boursiac Yann, Pradal Christophe, Bauget Fabrice, Lucas Mikaël, Delivorias Stathis, Godin Christophe, Maurel Christophe. 2022. Plant Physiology, 190 (2):kiac281 : 1289-1306.https://doi.org/10.1093/plphys/kiac281 <https://doi.org/10.1093/plphys/kiac281> http://agritrop.cirad.fr/601188/13/601188-ed.pdf |
op_rights |
cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/plphys/kiac281 |
container_title |
Plant Physiology |
_version_ |
1768386588668067840 |