Journal ArticleDOI
A quantitative study of the slow decline of chlorophyll a fluorescence in isolated chloroplasts
TLDR
A detailed study of the photo-induced decline in chlorophyll a fluorescence intensity (Kautsky phenomenon) in coupled isolated chloroplasts from a high level (P) to a low stationary level (S) is presented and a linear relationship between P leads to S quenching and intrathylakoid H+ concentration was found.About:
This article is published in Biochimica et Biophysica Acta.The article was published on 1979-10-10. It has received 384 citations till now. The article focuses on the topics: P700 & Photosystem I.read more
Citations
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Journal ArticleDOI
Continuous recording of photochemical and non-photochemical chlorophyll fluorescence quenching with a new type of modulation fluorometer.
TL;DR: It is shown that the modulation fluorometer, in combination with the application of saturating light pulses, provides essential information beyond that obtained with conventional chlorophyll fluorometers.
Journal ArticleDOI
Carotenoids and photoprotection in plants : a role for the xanthophyll zeaxanthin
TL;DR: Synthese des mecanismes de photoprotection chez les vegetaux, en reponse a un eclairement energetique; implication des carotenoides, en particulier la zeaxanthine, a la dissipation d'energie, en relation avec le cycle des xanthophylles.
Book
Handbook of microalgal culture: biotechnology and applied phycology.
TL;DR: Handbook of microalgal culture :biotechnology and applied phycology, Handbook of micro algal culture, اطلاعات رسانی کشاورزی, £20,000 (US$30,000)
Journal ArticleDOI
Photoinhibition of photosynthesis. An evaluation of damaging and protective mechanisms
TL;DR: In photosynthesis, photoinhibition is characterized by quenching of variable chlorophyll flurescence (Fv) resulting from increased thermal dissipation of excitation energy as mentioned in this paper.
Journal ArticleDOI
The role of the xanthophyll cycle and of lutein in photoprotection of photosystem II
Peter Jahns,Alfred R. Holzwarth +1 more
TL;DR: In this paper, a review gives an overview on recent progress in the understanding of the photoprotective role of the xanthophylls zeaxanthin and lutein with emphasis on the NPQ processes associated with photosystem II of higher plants.
References
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Journal ArticleDOI
Light-dependent changes of the Mg2+ concentration in the stroma in relation to the Mg2+ dependency of CO2 fixation in intact chloroplasts.
Archie R. Portis,Hans W. Heldt +1 more
TL;DR: The results suggest that illumination of intact chloroplasts causes an increase in the Mg2+ concentration of 1-3 mM in the stroma, which appears to be high enough to have a possible function in the light regulation of CO2 fixation.
Journal ArticleDOI
Ion and water transport processes related to the light-dependent shrinkage of spinach chloroplasts
Richard A. Dilley,Leo P. Vernon +1 more
TL;DR: Experimental evidence is presented that a volume decrease does occur in spinach chloroplasts, and it is associated with an efflux of Mg ++ and K + as well as an H + consumption, and kinetics similar to those of the light-scattering change.
Journal ArticleDOI
Quenching of the system II chlorophyll fluorescence by the plastoquinone pool.
TL;DR: The maximum fluorescence level F t reached during an illumination following 3-(3,4-dichlorophenyl)-1,1-dimethylurea addition is related to the oxidation level of A, and the quenching exerted by the oxidized plastoquinones is weak compared to the very different photochemical quenched of open Photosystem II centers.
Journal ArticleDOI
The high-energy state of the thylakoid system as indicated by chlorophyll fluorescence and chloroplast shrinkage.
TL;DR: It is demonstrated that the fluorescence yield does not only depend on the redox state of the quencher Q, but to a large degree also on the high-energy state ofThe thylakoid system associated with photophosphorylation.
Journal ArticleDOI
Changes in chlorophyll fluorescence in relation to light-dependent cation transfer across thylakoid membranes.
TL;DR: The described cation-dependent phenomena are sensitive to FCCP and closely correlated with light-induced proton uptake into the thylakoids, thus showing a relation to the energy conserving mechanism of photosynthesis.