ArticleBiophysical journal2005
Charge recombination and thermoluminescence in photosystem II.
Article in Biophysical journal, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Thermoluminescence can be used to study lipid peroxidation in photosynthetic organisms.Photosynthesis research · 2025Review
- Analysis of the changes of electron transfer and heterogeneity of photosystem II in Deg1-reduced Arabidopsis plants.Photosynthesis research · 2021Article
- Genetically introduced hydrogen bond interactions reveal an asymmetric charge distribution on the radical cation of the special-pair chlorophyll P680.The Journal of biological chemistry · 2017Article
- A comparison between plant photosystem I and photosystem II architecture and functioning.Current protein & peptide science · 2014Review
- Applications of delayed fluorescence from photosystem II.Sensors (Basel, Switzerland) · 2013Review
- Pitfalls, artefacts and open questions in chlorophyll thermoluminescence of leaves or algal cells.Photosynthesis research · 2013Review
- Chlorophyll a fluorescence induction: a personal perspective of the thermal phase, the J-I-P rise.Photosynthesis research · 2012Review
- Light-induced changes within photosystem II protects Microcoleus sp. in biological desert sand crusts against excess light.PloS one · 2010Article
- Connectivity of photosystem II is the physical basis of retrapping in photosynthetic thermoluminescence.Biophysical journal · 2009Article
- PS II model-based simulations of single turnover flash-induced transients of fluorescence yield monitored within the time domain of 100 ns-10 s on dark-adapted Chlorella pyrenoidosa cells.Photosynthesis researchArticle
- Introduction to optical methods in photosynthesis.Photosynthesis researchReview
- Thermoluminescence: theory.Photosynthesis researchReview
- Thermoluminescence: experimental.Photosynthesis researchReview
- Redesign of the Chlamydomonas reinhardtii QPhysiologia plantarumArticle
- Quantum efficiency distributions of photo-induced side-pathway donor oxidation at cryogenic temperature in photosystem II.Photosynthesis researchArticle
- D1-arginine257 mutants (R257E, K, and Q) of Chlamydomonas reinhardtii have a lowered QB redox potential: analysis of thermoluminescence and fluorescence measurements.Photosynthesis researchArticle
- The PsbP-like protein (sll1418) of Synechocystis sp. PCC 6803 stabilises the donor side of Photosystem II.Photosynthesis researchArticle
- Singlet oxygen production in photosystem II and related protection mechanism.Photosynthesis researchReview
- Energetics of Photosystem II charge recombination in Acaryochloris marina studied by thermoluminescence and flash-induced chlorophyll fluorescence measurements.Photosynthesis researchArticle
- Thermoluminescence and conformational transitions in the primary processes of photosynthesis.Doklady. Biochemistry and biophysicsArticle
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the recombination process of Photosystem II (S(2)Q(A)(-)-->S(1)Q(A)) the limiting step is the electron transfer from the reduced primary acceptor pheophytin Ph(-) to the oxidized primary donor P(+) and the rate depends on the equilibrium constant between states S(2)PPhQ(A)(-) and S(1)P(+)Ph(-)Q(A). Accordingly, mutations that affect the midpoint potential of Ph or of P result in a modified recombination rate. A strong correlation is observed between the effects on the recombination rate and on thermoluminescence (TL, the light emission from S(2)Q(A)(-) during a warming ramp): a slower recombination corresponds to a large enhancement and higher temperature of the TL peak. The current theory of TL does not account for these effects, because it is based on the assumption that the rate-limiting step coincides with the radiative process. When implementing the known fact that the radiative pathway represents a minor leak, the modified TL theory readily accounts qualitatively for the observed behavior. However, the peak temperature is still lower than predicted from the temperature-dependence of recombination. We argue that this reflects the heterogeneity of the recombination process combined with the enhanced sensitivity of TL to slower components. The recombination kinetics are accurately fitted as a sum of two exponentials and we show that this is not due to a progressive stabilization of the charge-separated state, but to a pre-existing conformational heterogeneity.
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