Dynamics of sun-induced chlorophyll fluorescence and reflectance to detect stress-induced variations in canopy photosynthesis

dc.creatorPinto Espinosa, F.
dc.creatorCelesti, M.
dc.creatorAcebron, K.
dc.creatorAlberti, G.
dc.creatorCogliati, S.
dc.creatorColombo, R.
dc.creatorJuszczak, R.
dc.creatorMatsubara, S.
dc.creatorMiglietta, F.
dc.creatorPalombo, A.
dc.creatorPanigada, C.
dc.creatorPignatti, S.
dc.creatorRossini, M.
dc.creatorSakowska, K.
dc.creatorSchickling, A.
dc.creatorSchüttemeyer, D.
dc.creatorStrózecki, M.
dc.creatorTudoroiu, M.
dc.creatorRascher, U.
dc.date2022-07-09T00:20:12Z
dc.date2022-07-09T00:20:12Z
dc.date2020
dc.date.accessioned2023-07-17T20:09:14Z
dc.date.available2023-07-17T20:09:14Z
dc.identifierhttps://hdl.handle.net/10883/22104
dc.identifier10.1111/pce.13754
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7513867
dc.descriptionPassive measurement of sun-induced chlorophyll fluorescence (F) represents the most promising tool to quantify changes in photosynthetic functioning on a large scale. However, the complex relationship between this signal and other photosynthesis-related processes restricts its interpretation under stress conditions. To address this issue, we conducted a field campaign by combining daily airborne and ground-based measurements of F (normalized to photosynthetically active radiation), reflectance and surface temperature and related the observed changes to stress-induced variations in photosynthesis. A lawn carpet was sprayed with different doses of the herbicide Dicuran. Canopy-level measurements of gross primary productivity indicated dosage-dependent inhibition of photosynthesis by the herbicide. Dosage-dependent changes in normalized F were also detected. After spraying, we first observed a rapid increase in normalized F and in the Photochemical Reflectance Index, possibly due to the blockage of electron transport by Dicuran and the resultant impairment of xanthophyll-mediated non-photochemical quenching. This initial increase was followed by a gradual decrease in both signals, which coincided with a decline in pigment-related reflectance indices. In parallel, we also detected a canopy temperature increase after the treatment. These results demonstrate the potential of using F coupled with relevant reflectance indices to estimate stress-induced changes in canopy photosynthesis.
dc.description1637-1654
dc.languageEnglish
dc.publisherBlackwell Publishing Ltd
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source7
dc.source43
dc.source0140-7791
dc.sourcePlant Cell and Environment
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectCanopy Temperature
dc.subjectDicuran
dc.subjectPhotochemical Reflectance Index
dc.subjectSun-Induced Chlorophyll Fluorescence
dc.subjectCANOPY
dc.subjectCHLOROPHYLLS
dc.subjectFLUORESCENCE
dc.subjectINHIBITION
dc.subjectION EXCHANGE
dc.subjectPHOTOCHEMISTRY
dc.subjectPHOTOSYNTHESIS
dc.subjectSPRAYS
dc.subjectPHYSIOLOGICAL STRESS RESISTANCE
dc.subjectPLANTS
dc.subjectDAYLIGHT
dc.titleDynamics of sun-induced chlorophyll fluorescence and reflectance to detect stress-induced variations in canopy photosynthesis
dc.typeArticle
dc.typePublished Version
dc.coverageUnited Kingdom


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