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dc.contributor.authorBaron, Daniel
dc.contributor.authorAmaro, Amanda Cristina Esteves [UNESP]
dc.contributor.authorCampos, Felipe Girotto [UNESP]
dc.contributor.authorFerreira, Gisela [UNESP]
dc.date.accessioned2018-12-11T17:38:20Z
dc.date.available2018-12-11T17:38:20Z
dc.date.issued2018-09-01
dc.identifierhttp://dx.doi.org/10.1007/s40626-018-0115-4
dc.identifier.citationTheoretical and Experimental Plant Physiology, v. 30, n. 3, p. 203-213, 2018.
dc.identifier.issn2197-0025
dc.identifier.urihttp://hdl.handle.net/11449/180142
dc.description.abstractWe examined the hypothesis that leaf gas exchange of scion is affected by different rootstocks in wood plants. We investigated daily courses of gas exchange and photosynthetic potential using the CO2 assimilation rates as a function of photosynthetic photon flux density, and then assessed CO2 response curves in atemoya scion (Annona × atemoya Mabb.) grafted onto araticum-de-terra-fria [A. emarginata (Schltdl.) H. Rainer var. terra-fria]: ATF, araticum-mirim [A. emarginata (Schltdl.) H. Rainer var. mirim]: ATM, biribá [A. mucosa (Bail.) H. Rainer]: ATB, atemoya (autograft): ATA, and in ungrafted atemoya plants: CTR. Throughout the entire evaluation period, the net assimilation rate (Anet) and stomatal conductance (gs) of CTR plants remained practically constant, being lower than those of grafted plants between 08:00 a.m. and 12:00 a.m., regardless of the rootstock used. Moreover, ATM plants proved to be more efficient in keeping the stomata open, even during the hottest hours of the day, improving Anet and carboxylation use efficiency. However, this occurred at the lowest maximum carboxylation rate of ribulose-1,5-bisphosphate (Vcmáx). Overall, ATF plants presented a low light saturation point and photosynthetic electron transport rates, though increased maximum quantum yield of photosynthesis was observed. Thus, we accept our hypothesis and conclude that grafting might affect the photosynthetic metabolism of the atemoya hybrid, regardless of the combination used, which promotes enhanced Anet and low Vcmáx and light saturation points.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent203-213
dc.language.isoeng
dc.relation.ispartofTheoretical and Experimental Plant Physiology
dc.sourceScopus
dc.subjectAnnonaceae
dc.subjectGas exchange
dc.subjectGrafted plants
dc.subjectLight curves
dc.titleLeaf gas exchanges responses of atemoya scion grafted onto Annona rootstocksen
dc.typeArtigo
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationNature Sciences Center (CCN) Laboratory of Plant Physiology and Biochemistry Federal University of São Carlos (UFSCar), Lagoa do Sino campus
dc.description.affiliationBiosciences Institute (IB) Botany Department São Paulo State University (UNESP)
dc.description.affiliationUnespBiosciences Institute (IB) Botany Department São Paulo State University (UNESP)
dc.identifier.doi10.1007/s40626-018-0115-4
dc.rights.accessRightsAcesso aberto
dc.description.sponsorshipIdFAPESP: n°2011/00853-8
dc.identifier.scopus2-s2.0-85052632992
dc.identifier.file2-s2.0-85052632992.pdf
unesp.author.orcid0000-0001-9542-9413[1]
dc.relation.ispartofsjr0,493
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