Results 51 to 60 of about 68,054 (203)
ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]
, 1987 The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W. +7 more
core +1 more source
Diversity of viral photosystem-I psaA genes [PDF]
The ISME Journal, 2014 Abstract Marine photosynthesis is one of the major contributors to the global carbon cycle and the world’s oxygen supply. This process is largely driven by cyanobacteria, namely Synechococcus and Prochlorococcus. Genes encoding photosystem-II (PSII) reaction center proteins are found in many cyanophage genomes, and are expressed during ...
Gur Hevroni +3 more
openaire +3 more sources
Nature Communications, 2020 Evergreen conifers rely on ‘sustained quenching’ to protect their photosynthetic machinery during long, cold winters. Here, Bag et al. show that direct energy transfer (spillover) from photosystem II to photosystem I triggered by loss of grana stacking ...
Pushan Bag +8 more
doaj +1 more source
Plants lacking the main light-harvesting complex retain photosystem II macro-organization [PDF]
, 2003 Photosystem II (PSII) is a key component of photosynthesis, the process of converting sunlight into the chemical energy of life. In plant cells, it forms a unique oligomeric macrostructure in membranes of the chloroplasts.
A Haldrup +27 more
core +5 more sources
Electron transfer in photosystem I
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2001 This mini-review focuses on recent experimental results and questions, which came up since the last more comprehensive reviews on the subject. We include a brief discussion of the different techniques used for time-resolved studies of electron transfer in photosystem I (PS I) and relate the kinetic results to new structural data of the PS I reaction ...
Brettel, Klaus, Leibl, Winfried
openaire +2 more sources
Antenna complexes protect Photosystem I from Photoinhibition
BMC Plant Biology, 2009 Background Photosystems are composed of two moieties, a reaction center and a peripheral antenna system. In photosynthetic eukaryotes the latter system is composed of proteins belonging to Lhc family. An increasing set of evidences demonstrated how these
Hienerwadel Rainer +4 more
doaj +1 more source
Modeling of Transient Absorption Spectra in Exciton Charge-Transfer Systems
, 2017 Time-resolved spectroscopy provides the main tool for analyzing the dynamics of excitonic energy transfer in light-harvesting complexes. To infer time-scales and effective coupling parameters from experimental data requires to develop numerical exact ...
Kramer, Tobias +2 more
core +1 more source
Frontiers in Plant Science, 2016 Chloramphenicol is an inhibitor of protein synthesis, which is frequently used to decouple photodamage and protein synthesis dependent repair of Photosystem II during the process of photoinhibition.
Ateeq Ur Rehman +2 more
doaj +1 more source
Biomolecules, 2023 The unicellular green alga, Chlamydomonas reinhardtii, has been widely used as a model system to study photosynthesis. Its possibility to generate and analyze specific mutants has made it an excellent tool for mechanistic and biogenesis studies.
Tom Schwartz +3 more
doaj +1 more source
Induction Kinetics of Photosystem I-Activated P700 Oxidation in Plant Leaves and Their Dependence on Pre-Energization [PDF]
, 2010 Absorbance changes ¿A 810 were measured in pea (Pisum sativum L., cv. Premium) leaves to track redox transients of chlorophyll P700 during and after irradiation with far red (FR) light under various preillumination conditions in the absence and presence ...
Bulychev, A.A., Vredenberg, W.J.
core +2 more sources