6533b836fe1ef96bd12a01cd

RESEARCH PRODUCT

Chlorophyll fluorescence emission spectrum inside a leaf

Ismael MoyaRoberto PedrósYves GoulasStéphane Jacquemoud

subject

0106 biological sciencesChlorophyllChlorophyll aSpectral shape analysisI REACTION CENTERSSPINACH THYLAKOID MEMBRANES[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]PHOTOSYNTHETIC MEMBRANEPhotosystem I01 natural sciencesSpectral lineHIGHER-PLANTSPROTEIN COMPLEXES03 medical and health scienceschemistry.chemical_compoundmedicineEmission spectrumPhysical and Theoretical ChemistryChlorophyll fluorescenceLIGHT-HARVESTING COMPLEX030304 developmental biologyRemote sensing0303 health sciencesPhotosystem I Protein Complex[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]Photosystem II Protein Complexfood and beveragesFluorescencePlant LeavesSpectrometry FluorescenceROOM-TEMPERATUREchemistryPHOTOSYSTEM-I[SDU]Sciences of the Universe [physics]Espectroscòpia de fluorescènciaARABIDOPSIS-THALIANAmedicine.symptomVegetation (pathology)ENERGY-TRANSFER010606 plant biology & botany

description

International audience; Chlorophyll a fluorescence can be used as an early stress indicator. Fluorescence is also connected to photosynthesis so it can be proposed for global monitoring of vegetation status from a satellite platform. Nevertheless, the correct interpretation of fluorescence requires accurate physical models. The spectral shape of the leaf fluorescence free of any re-absorption effect plays a key role in the models and is difficult to measure. We present a vegetation fluorescence emission spectrum free of re-absorption based on a combination of measurements and modelling. The suggested spectrum takes into account the photosystem I and II spectra and their relative contribution to fluorescence, This emission spectrum is applicable to describe vegetation fluorescence in biospectroscopy and remote sensing

10.1039/b719506khttps://hal-insu.archives-ouvertes.fr/insu-02732919