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Chlorophyll Fluorescence Imaging
2018Chlorophyll fluorescence imaging provides a noninvasive rapid screen to assess the physiological status of a number of leaves or plants simultaneously. Although there are no standard protocols for chlorophyll fluorescence imaging, here we provide an example of routines for some of the typical measurements.
Lawson, Tracy, Vialet-Chabrand, Silvere
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An Introduction to Chlorophyll Fluorescence
2003Photosynthesis is a physiological process that couples the energy of light to certain metabolic changes in biochemical reactions, via photochemical processes. Importantly, these metabolic changes would be endothermic in the absence of light, meaning that they would not proceed spontaneously.
Harbinson, J., Rosenqvist, E.
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Application of chlorophyll fluorescence in ecophysiology
Radiation and Environmental Biophysics, 1986In vivo chlorophyll fluorescence measurements have become a valuable tool in ecophysiology. Fluorescence emission spectra are influenced by the reabsorption of the tissue and indicate the composition of the antenna system and are influenced by the chlorophyll content per leaf area.
Lichtenthaler, H. K. +3 more
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Quenching of chlorophyll fluorescence by quinones
IUBMB Life, 1998AbstractQuinones caused quenching of Chl a fluorescence in native and model systems. Menadione quenched twofold the fluorescence of Chl a and BChl a in pea chloroplasts, chromatophores of purple bacteria, and liposomes at concentrations of 50‐80 μM. To obtain twofold quenching in Triton X‐100 micelles and in ethanol, the addition of 1.3 mM and 11 mM ...
V D, Samuilov +4 more
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Chlorophyll Fluorescence on the Fast Timescale
2018Chlorophyll fluorescence is a rapid and non-invasive tool used for probing the activity of photosynthesis that can be used in vivo and in the field. It is highly relevant to the demands of high-throughput crop phenotyping and can be automated or manually applied.
Olubukola O, Ajigboye +2 more
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Chlorophyll fluorescence at high temperature
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1982Abstract An increase in fluorescence emission attributed to PS I becomes apparent when leaves and chloroplasts enriched in stroma thylakoids are heated to high temperature (65–70°C). This conclusion is drawn from observations on sun and shade leaves, French press-fractionated chloroplasts and grana-deficient bundle sheath chloroplasts of C4 plants.
W.John S. Downton, Joseph A. Berry
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Oxygen concentration affects chlorophyll fluorescence in chlorophyll-containing fruit
Postharvest Biology and Technology, 2002Abstract The effect of lowering O2 concentration on chlorophyll fluorescence was continuously monitored in apple (Malus x domestica Borkh.), pear (Pyrus communis L.), banana (Musa L. Cavendish subgroup), kiwifruit (Actinidia deliciosa (A. Chev.) C.F. Liang et A.R.
Robert K Prange +3 more
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Chlorophyll fluorescence quenching by xanthophylls
Physical Chemistry Chemical Physics, 2003The interactions of the xanthophylls zeaxanthin, antheraxanthin and violaxanthin with chlorophyll, which are relevant for the chlorophyll fluorescence quenching in the non-photochemical quenching (NPQ) process in green plants, are investigated by means of quantum chemical methods.
Andreas Dreuw +2 more
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Period four oscillations in chlorophyll a fluorescence
Photosynthesis Research, 2002The discovery of period four oscillations of the fluorescence yield under flashing light demonstrated that not only the redox state of the Photosystem II (PS II) electron acceptor Q(A), but also the oxygen evolving cycle (described by the S states) modulates the fluorescence yield of chlorophyll (Chl). The positive charges accumulated on the donor side
René, Delosme, Pierre, Joliot
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