Results 1 to 10 of about 2,541 (115)

Oxidation of P700 Induces Alternative Electron Flow in Photosystem I in Wheat Leaves

Plants, 2019
Oxygen (O2)-evolving photosynthetic organisms oxidize the reaction center chlorophyll, P700, in photosystem I (PSI) to suppress the production of reactive oxygen species.
Riu Furutani, Amane Makino, Yuji Suzuki   +2 more
exaly   +3 more sources

Kinetic Determination of Cytochrome b6f Activity In Vitro [PDF]

Bio-Protocol
While traditional kinetic studies of the cytochrome b6f complex have frequently relied on measurements within the complex environment of intact leaves or whole-organism systems, such approaches can be limited by overlapping signals and physiological ...
Yuval Milrad, Daniel Wegemann, Michael Hippler   +2 more
doaj   +2 more sources

Oxidation of P700 Ensures Robust Photosynthesis

Frontiers in Plant Science, 2018
In the light, photosynthetic cells can potentially suffer from oxidative damage derived from reactive oxygen species. Nevertheless, a variety of oxygenic photoautotrophs, including cyanobacteria, algae, and plants, manage their photosynthetic systems ...
Ginga Shimakawa, Chikahiro Miyake, Shimakawa Ginga   +2 more
exaly   +3 more sources

Development of a TSR-based method for understanding structural relationships of cofactors and local environments in photosystem I [PDF]

BMC Bioinformatics
Background All chemical forms of energy and oxygen on Earth are generated via photosynthesis where light energy is converted into redox energy by two photosystems (PS I and PS II).
Lujun Luo, Tarikul I. Milon, Elijah K. Tandoh, Walter J. Galdamez, Andrei Y. Chistoserdov, Jianping Yu, Jan Kern, Yingchun Wang, Wu Xu   +8 more
doaj   +2 more sources

Potential immune-modulatory effects of wheat phytase on the performance of a mouse macrophage cell line, Raw 264.7, exposed to long-chain inorganic polyphosphate [PDF]

Animal Bioscience, 2021
Objective This experiment was conducted to find out the immunological effects of wheat phytase when long-chain inorganic polyphosphate (polyP) treated with wheat phytase was added to a macrophage cell line, Raw 264.7, when compared to intact long-chain ...
Jeongmin An, Jaiesoon Cho
doaj   +1 more source

On the evolution of the concept of two light reactions and two photosystems for oxygenic photosynthesis: A personal perspective

Photosynthetica, 2023
I present here a personal perspective of the evolution of the two-light reaction two-pigment scheme for the electron transport in oxygenic photosynthesis - as I have lived through it - first as a graduate student of Robert Emerson, from September 1956 ...
G. GOVINDJEE
doaj   +1 more source

Physiological Roles of Flavodiiron Proteins and Photorespiration in the Liverwort Marchantia polymorpha

Frontiers in Plant Science, 2021
Against the potential risk in oxygenic photosynthesis, that is, the generation of reactive oxygen species, photosynthetic electron transport needs to be regulated in response to environmental fluctuations. One of the most important regulations is keeping
Ginga Shimakawa, Ginga Shimakawa, Ginga Shimakawa, Ginga Shimakawa, Hitomi Hanawa, Shinya Wada, Shinya Wada, Guy T. Hanke, Yusuke Matsuda, Chikahiro Miyake, Chikahiro Miyake   +10 more
doaj   +1 more source

Coupling of a Novel TIMP3 Peptide to Carboxypeptidase G2 for Pro-Drug Activation at the Tumour Site

Molecules, 2021
Broad-spectrum cytotoxic drugs have been used in cancer therapy for decades. However, their lack of specificity to cancer cells often results in serious side-effects, limiting efficacy.
Mohammed S. Aldughaim, Fatimah Alsaffar, Michael D. Barker   +2 more
doaj   +1 more source

Moderate photoinhibition of PSII and oxidation of P700 contribute to chilling tolerance of tropical tree species in subtropics of China

Photosynthetica, 2023
In the subtropics, a few tropical tree species are distributed and planted for ornamental and horticultural purposes; however, the photosynthesis of these species can be impaired by chilling.
V.S.J. SUNOJ, Y. WEN, A. JAJOO, A.W. SHORT, W.H. ZENG, N.I. ELSHEERY, K.F. CAO   +6 more
doaj   +1 more source

Molecular Mechanism of Oxidation of P700 and Suppression of ROS Production in Photosystem I in Response to Electron-Sink Limitations in C3 Plants

Antioxidants, 2020
Photosynthesis fixes CO2 and converts it to sugar, using chemical-energy compounds of both NADPH and ATP, which are produced in the photosynthetic electron transport system.
Chikahiro Miyake
doaj   +1 more source