Mostrar el registro sencillo del ítem

Exploring natural genetic diversity in a bread wheat multi-founder population: dual imaging of photosynthesis and stomatal kinetics

hal.structure.identifierUniversity of Essex
dc.contributor.authorFARALLI, Michele
hal.structure.identifierNational Institute of Agricultural Botany [NIAB]
dc.contributor.authorMELLERS, Greg
hal.structure.identifierUniversity of Essex
dc.contributor.authorWALL, Shellie
hal.structure.identifierUniversity of Essex
dc.contributor.authorVIALET-CHABRAND, Silvere
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorFORGET, Guillaume
dc.contributor.authorGALLE, Alexander
dc.contributor.authorVAN RIE, Jeron
hal.structure.identifierNational Institute of Agricultural Botany [NIAB]
dc.contributor.authorGARDNER, Keith
hal.structure.identifierNational Institute of Agricultural Botany [NIAB]
dc.contributor.authorOBER, Eric
hal.structure.identifierNational Institute of Agricultural Botany [NIAB]
dc.contributor.authorCOCKRAM, James
hal.structure.identifierUniversity of Essex
dc.contributor.authorLAWSON, Tracy
dc.date.accessioned2024-11-28T03:02:08Z
dc.date.available2024-11-28T03:02:08Z
dc.date.issued2024-05-25
dc.identifier.issn0022-0957
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/203512
dc.description.abstractEn<div><p>Recent research has shown that optimizing photosynthetic and stomatal traits holds promise for improved crop performance. However, standard phenotyping tools such as gas exchange systems have limited throughput. In this work, a novel approach based on a bespoke gas exchange chamber allowing combined measurement of the quantum yield of PSII (F q '/F m '), with an estimation of stomatal conductance via thermal imaging was used to phenotype a range of bread wheat (Triticum aestivum L.) genotypes. Using the dual-imaging methods and traditional approaches, we found broad and significant variation in key traits, including photosynthetic CO 2 uptake at saturating light and ambient CO 2 concentration (A sat ), photosynthetic CO 2 uptake at saturating light and elevated CO 2 concentration (A max ), the maximum velocity of Rubisco for carboxylation (V cmax ), time for stomatal opening (K i ), and leaf evaporative cooling. Anatomical analysis revealed significant variation in flag leaf adaxial stomatal density. Associations between traits highlighted significant relationships between leaf evaporative cooling, leaf stomatal conductance, and F q '/F m ', highlighting the importance of stomatal conductance and stomatal rapidity in maintaining optimal leaf temperature for photosynthesis in wheat. Additionally, g smin and g smax were positively associated, indicating that potential combinations of preferable traits (i.e. inherently high g smax , low K i , and maintained leaf evaporative cooling) are present in wheat. This work highlights the effectiveness of thermal imaging in screening dynamic g s in a panel of wheat genotypes. The wide phenotypic variation observed suggested the presence of exploitable genetic variability in bread wheat for dynamic stomatal conductance traits and photosynthetic capacity for targeted optimization within future breeding programmes.</p></div>
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enKinetics
dc.subject.enMAGIC
dc.subject.enphotosynthesis
dc.subject.enphotosynthetic capacity
dc.subject.enstomatal conductance
dc.subject.enthermal images
dc.subject.enwater use efficiency
dc.subject.enwheat
dc.title.enExploring natural genetic diversity in a bread wheat multi-founder population: dual imaging of photosynthesis and stomatal kinetics
dc.typeArticle de revue
dc.identifier.doi10.1093/jxb/erae233
dc.subject.halSciences de l'environnement
bordeaux.journalJournal of Experimental Botany
bordeaux.page6733 - 6747
bordeaux.volume75
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue21
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04804050
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04804050v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20of%20Experimental%20Botany&amp;rft.date=2024-05-25&amp;rft.volume=75&amp;rft.issue=21&amp;rft.spage=6733%20-%206747&amp;rft.epage=6733%20-%206747&amp;rft.eissn=0022-0957&amp;rft.issn=0022-0957&amp;rft.au=FARALLI,%20Michele&amp;MELLERS,%20Greg&amp;WALL,%20Shellie&amp;VIALET-CHABRAND,%20Silvere&amp;FORGET,%20Guillaume&amp;rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem