Changes in polyphasic chlorophyll a fluorescence induction curve upon inhibition of donor or acceptor side of photosystem II in isolated thylakoids

Biochimica Et Biophysica Acta
Nikolai G BukhovRobert Carpentier

Abstract

The action of various inhibitors affecting the donor and acceptor sides of photosystem II (PSII) on the polyphasic rise of chlorophyll (Chl) fluorescence was studied in thylakoids isolated from pea leaves. Low concentrations of diuron and stigmatellin increased the magnitude of J-level of the Chl fluorescence rise. These concentrations barely affected electron transfer from PSII to PSI as revealed by the unchanged magnitude of the fast component (t(1/2) = 24 ms) of P700+ dark reduction. Higher concentrations of diuron and stigmatellin suppressed electron transport from PSII to PSI, which corresponded to the loss of thermal phase, the Chl fluorescence rise from J-level to the maximal, P-level. The effect of various concentrations of carbonylcyanide m-chlorophenylhydrazone (CCCP), which abolishes S-state cycle and binds at the plastoquinone site on QB, the secondary quinone acceptor PSII, on the Chl fluorescence rise was very similar to that of diuron and stigmatellin. Low concentrations of diuron, stigmatellin, or CCCP given on the background of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD), which is shown to initiate the appearance of a distinct I-peak in the kinetics of Chl fluorescence rise measured in isolated thylakoids [...Continue Reading

References

Oct 15, 1977·FEBS Letters·V V KlimovA A Kransnovsky
Nov 17, 1972·Biochimica Et Biophysica Acta·C A WraightN M Gerrits
May 30, 1973·Biochimica Et Biophysica Acta·P Joliot, A Joliot
Sep 26, 2001·Biochemistry·R de Wijn, H J van Gorkom
Apr 22, 2004·Biochimica Et Biophysica Acta·Kenneth Sauer, Vittal K Yachandra
Apr 22, 2004·Biochimica Et Biophysica Acta·Jürgen ClausenWolfgang Junge
Nov 1, 1972·Proceedings of the National Academy of Sciences of the United States of America·W L Butler

❮ Previous
Next ❯

Citations

Jun 28, 2011·Analytical and Bioanalytical Chemistry·K BuonaseraM T Giardi
Jul 29, 2005·Photosynthesis Research·David JolyRobert Carpentier
Aug 19, 2007·Photosynthesis Research·Taras K AntalAndrew B Rubin
Apr 19, 2008·Photosynthesis Research·T Antal, A Rubin
May 9, 2012·Journal of Photochemistry and Photobiology. B, Biology·Hazem M KalajiKarolina Bosa
Jun 25, 2013·Photochemistry and Photobiology·Imed HasniRobert Carpentier
Feb 28, 2009·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·David Joly, Robert Carpentier
Mar 11, 2015·Biochemistry. Biokhimii︠a︡·M D MamedovA Yu Semenov
Dec 10, 2016·Frontiers in Plant Science·Sidsel B SchmidtPai R Pedas

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.