Results 51 to 60 of about 21,214 (241)

Structural basis for an early stage of the photosystem II repair cycle in Chlamydomonas reinhardtii

Nature Communications
Photosystem II (PSII) catalyzes water oxidation and plastoquinone reduction by utilizing light energy. It is highly susceptible to photodamage under high-light conditions and the damaged PSII needs to be restored through a process known as the PSII ...
Anjie Li, Tingting You, Xiaojie Pang, Yidi Wang, Lijin Tian, Xiaobo Li, Zhenfeng Liu   +6 more
doaj   +1 more source

The Photosystem II Oxygen-Evolving Complex Protein PsbP Interacts With the Coat Protein of Alfalfa mosaic virus and Inhibits Virus Replication

Molecular Plant-Microbe Interactions, 2014
Alfalfa mosaic virus (AMV) coat protein (CP) is essential for many steps in virus replication from early infection to encapsidation. However, the identity and functional relevance of cellular factors that interact with CP remain unknown.
Muthukumar Balasubramaniam, Bong-Suk Kim, Heather M. Hutchens-Williams, L. Sue Loesch-Fries   +3 more
doaj   +1 more source

Going around the Kok cycle of the water oxidation reaction with femtosecond X-ray crystallography

IUCrJ, 2023
The water oxidation reaction in photosystem II (PS II) produces most of the molecular oxygen in the atmosphere, which sustains life on Earth, and in this process releases four electrons and four protons that drive the downstream process of CO2 fixation ...
Asmit Bhowmick, Philipp S. Simon, Isabel Bogacz, Rana Hussein, Miao Zhang, Hiroki Makita, Mohamed Ibrahim, Ruchira Chatterjee, Margaret D. Doyle, Mun Hon Cheah, Petko Chernev, Franklin D. Fuller, Thomas Fransson, Roberto Alonso-Mori, Aaron S. Brewster, Nicolas K. Sauter, Uwe Bergmann, Holger Dobbek, Athina Zouni, Johannes Messinger, Jan Kern, Vittal K. Yachandra, Junko Yano   +22 more
doaj   +1 more source

Reversible reorganization of the chlorophyll‐protein complexes of photosystem II in cyanobacterium cells in the dark ag [PDF]

FEBS Letters, 1989
A new emission band at 673 nm was detected in the low‐temperature fluorescence spectrum of dark‐adapted cyanobacteria Gloeotrichia raciborski. The excitation spectrum of this band was close to the absorbance of the isolated reaction centre of photosystem II. The relative intensities of the bands of chlorophyll and pheophytin in this spectrum showed the
Lebedev, N.N., Van Ni, Chan, Krasnovsky, A.A.   +2 more
openaire   +1 more source

Role of plastid protein phosphatase TAP38 in LHCII dephosphorylation and thylakoid electron flow. [PDF]

PLoS Biology, 2010
Short-term changes in illumination elicit alterations in thylakoid protein phosphorylation and reorganization of the photosynthetic machinery. Phosphorylation of LHCII, the light-harvesting complex of photosystem II, facilitates its relocation to ...
Mathias Pribil, Paolo Pesaresi, Alexander Hertle, Roberto Barbato, Dario Leister   +4 more
doaj   +1 more source

Role of Novel Dimeric Photosystem II (PSII)-Psb27 Protein Complex in PSII Repair [PDF]

Journal of Biological Chemistry, 2011
The multisubunit membrane protein complex Photosystem II (PSII) catalyzes one of the key reactions in photosynthesis: the light-driven oxidation of water. Here, we focus on the role of the Psb27 assembly factor, which is involved in biogenesis and repair after light-induced damage of the complex.
Nicole, Grasse, Fikret, Mamedov, Kristin, Becker, Stenbjörn, Styring, Matthias, Rögner, Marc M, Nowaczyk   +5 more
openaire   +2 more sources

Analysis of the chloroplast protein kinase Stt7 during state transitions.

PLoS Biology, 2009
State transitions allow for the balancing of the light excitation energy between photosystem I and photosystem II and for optimal photosynthetic activity when photosynthetic organisms are subjected to changing light conditions.
Sylvain Lemeille, Adrian Willig, Nathalie Depège-Fargeix, Christian Delessert, Roberto Bassi, Jean-David Rochaix   +5 more
doaj   +1 more source

Transcriptional analyses reveal the molecular mechanism governing shade tolerance in the invasive plant Solidago canadensis

Ecology and Evolution, 2020
Solidago canadensis is an invasive plant that is capable of adapting to variable light conditions. To elucidate the shade tolerance mechanism in S. canadensis at the molecular level, transcriptome analyses were performed for leaves growing under natural ...
Miao Wu, Zeyu Li, Jianbo Wang
doaj   +1 more source

A Novel Antenna Protein Complex in the Life Cycle of Cyanobacterial Photosystem II [PDF]

, 2019
ABSTRACT In oxygenic photosynthetic organisms, photosystem II (PSII) is a unique membrane protein complex that catalyzes light-driven oxidation of water. PSII undergoes frequent damage due to its demanding photochemistry. However, many facets of its repair and reassembly following photodamage remain unknown.
Weisz, Daniel A., Johnson, Virginia M., Niedzwiedzki, Dariusz M., Shinn, Min Kyung, Liu, Haijun, Klitzke, Clécio F., Gross, Michael L., Blankenship, Robert E., Lohman, Timothy M., Pakrasi, Himadri B.   +9 more
openaire   +1 more source

Proteasome inhibition rapidly exacerbates photoinhibition and impedes recovery during high light stress in Chlamydomonas reinhardtii

BMC Plant Biology, 2020
Background Proteasomes remove regulatory proteins in eukaryotic cells, and control a variety of plant processes. Proteasomes are localized to the cytosol and nuclear, but their role in plant biology has recently been extended to chloroplasts, where it ...
Felipe Mendoza, Carson Berry, Laura Prestigiacomo, Doug Van Hoewyk   +3 more
doaj   +1 more source