Chlorophyll fluorescence emission spectra in photosynthetic organisms

The description, analysis and applications of chlorophyllfluorescence emission spectrum in biological organisms are reviewed. Atroom temperature, in photosynthetic tissues, chlorophyll fluorescencepresents a peak in the red (about 680 nm) due to emission fromchlorophyll-a linked to photosystem II an...

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Autor principal: Lagorio, M.G.
Formato: CHAP
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_97816147_v_n_p115_Lagorio
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_97816147_v_n_p115_Lagorio
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spelling todo:paper_97816147_v_n_p115_Lagorio2023-10-03T16:44:17Z Chlorophyll fluorescence emission spectra in photosynthetic organisms Lagorio, M.G. The description, analysis and applications of chlorophyllfluorescence emission spectrum in biological organisms are reviewed. Atroom temperature, in photosynthetic tissues, chlorophyll fluorescencepresents a peak in the red (about 680 nm) due to emission fromchlorophyll-a linked to photosystem II and in the far-red (about 735 nm)due to contribution of both photosystems (I and II). Chlorophyllfluorescence analysis is a powerful tool for plant physiologists but itsinterpretation is usually complicated by the presence of light reabsorptionprocesses inside the photosynthetic tissue. A great deal ofimportant conclusions on photochemistry of plants is usually inferredfrom leaves fluorescence ratios at different emission wavelengths(typically the fluorescence ratio red/far-red). Nevertheless, most of themare deduced from observed spectra distorted by light re-absorptionprocesses and the resultant conclusions are not reliable. A review of theempirical and theoretical approaches to evaluate the chlorophyll emissionspectra inside the photosynthetic organism, free from light re-absorptionprocesses, published to date in literature, is detailed and discussed in thischapter. Not only the steady-state spectrum from plant leaves but alsofrom algae and chlorophyll-containing fruits are discussed. Applicationsin plant physiology and in monitoring plant stress are presented. © 2012 by Nova Science Publishers, Inc. All rights reserved. Fil:Lagorio, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. CHAP info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_97816147_v_n_p115_Lagorio
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The description, analysis and applications of chlorophyllfluorescence emission spectrum in biological organisms are reviewed. Atroom temperature, in photosynthetic tissues, chlorophyll fluorescencepresents a peak in the red (about 680 nm) due to emission fromchlorophyll-a linked to photosystem II and in the far-red (about 735 nm)due to contribution of both photosystems (I and II). Chlorophyllfluorescence analysis is a powerful tool for plant physiologists but itsinterpretation is usually complicated by the presence of light reabsorptionprocesses inside the photosynthetic tissue. A great deal ofimportant conclusions on photochemistry of plants is usually inferredfrom leaves fluorescence ratios at different emission wavelengths(typically the fluorescence ratio red/far-red). Nevertheless, most of themare deduced from observed spectra distorted by light re-absorptionprocesses and the resultant conclusions are not reliable. A review of theempirical and theoretical approaches to evaluate the chlorophyll emissionspectra inside the photosynthetic organism, free from light re-absorptionprocesses, published to date in literature, is detailed and discussed in thischapter. Not only the steady-state spectrum from plant leaves but alsofrom algae and chlorophyll-containing fruits are discussed. Applicationsin plant physiology and in monitoring plant stress are presented. © 2012 by Nova Science Publishers, Inc. All rights reserved.
format CHAP
author Lagorio, M.G.
spellingShingle Lagorio, M.G.
Chlorophyll fluorescence emission spectra in photosynthetic organisms
author_facet Lagorio, M.G.
author_sort Lagorio, M.G.
title Chlorophyll fluorescence emission spectra in photosynthetic organisms
title_short Chlorophyll fluorescence emission spectra in photosynthetic organisms
title_full Chlorophyll fluorescence emission spectra in photosynthetic organisms
title_fullStr Chlorophyll fluorescence emission spectra in photosynthetic organisms
title_full_unstemmed Chlorophyll fluorescence emission spectra in photosynthetic organisms
title_sort chlorophyll fluorescence emission spectra in photosynthetic organisms
url http://hdl.handle.net/20.500.12110/paper_97816147_v_n_p115_Lagorio
work_keys_str_mv AT lagoriomg chlorophyllfluorescenceemissionspectrainphotosyntheticorganisms
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