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Resolving the contrasting leaf hydraulic adaptation of C 3 and C 4 grasses

dc.contributor.authorBAIRD, Alec
dc.contributor.authorTAYLOR, Samuel
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierDepartment of Ecology and Evolutionary Biology
dc.contributor.authorPASQUET-KOK, Jessica
dc.contributor.authorVUONG, Christine
hal.structure.identifierHuazhong Agricultural University [Wuhan] [HZAU]
dc.contributor.authorZHANG, Yu
dc.contributor.authorWATCHARAMONGKOL, Teera
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
dc.contributor.authorCOCHARD, Hervé
hal.structure.identifierCalifornia State University [Los Angeles] [CAL STATE LA]
dc.contributor.authorSCOFFONI, Christine
dc.contributor.authorEDWARDS, Erika
hal.structure.identifierUniversity of Sheffield [Sheffield]
dc.contributor.authorOSBORNE, Colin
hal.structure.identifierUniversity of California [Los Angeles] [UCLA]
dc.contributor.authorSACK, Lawren
dc.date.accessioned2025-01-12T03:01:21Z
dc.date.available2025-01-12T03:01:21Z
dc.date.issued2025-01-05
dc.identifier.issn0028-646X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/204241
dc.description.abstractEnSummary Grasses are exceptionally productive, yet their hydraulic adaptation is paradoxical. Among C 3 grasses, a high photosynthetic rate ( A area ) may depend on higher vein density ( D v ) and hydraulic conductance ( K leaf ). However, the higher D v of C 4 grasses suggests a hydraulic surplus, given their reduced need for high K leaf resulting from lower stomatal conductance ( g s ). Combining hydraulic and photosynthetic physiological data for diverse common garden C 3 and C 4 species with data for 332 species from the published literature, and mechanistic modeling, we validated a framework for linkages of photosynthesis with hydraulic transport, anatomy, and adaptation to aridity. C 3 and C 4 grasses had similar K leaf in our common garden, but C 4 grasses had higher K leaf than C 3 species in our meta‐analysis. Variation in K leaf depended on outside‐xylem pathways. C 4 grasses have high K leaf : g s , which modeling shows is essential to achieve their photosynthetic advantage. Across C 3 grasses, higher A area was associated with higher K leaf , and adaptation to aridity, whereas for C 4 species, adaptation to aridity was associated with higher K leaf : g s . These associations are consistent with adaptation for stress avoidance. Hydraulic traits are a critical element of evolutionary and ecological success in C 3 and C 4 grasses and are crucial avenues for crop design and ecological forecasting.
dc.language.isoen
dc.publisherWiley
dc.title.enResolving the contrasting leaf hydraulic adaptation of C 3 and C 4 grasses
dc.typeArticle de revue
dc.identifier.doi10.1111/nph.20341
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologie
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles/Sylviculture, foresterie
bordeaux.journalNew Phytologist
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04880747
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04880747v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=New%20Phytologist&rft.date=2025-01-05&rft.eissn=0028-646X&rft.issn=0028-646X&rft.au=BAIRD,%20Alec&TAYLOR,%20Samuel&PASQUET-KOK,%20Jessica&VUONG,%20Christine&ZHANG,%20Yu&rft.genre=article


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