Results 1 to 10 of about 31,434 (161)

Photoinhibition and protection of photosystem I. [PDF]

Plant Cell Physiol, 2007
Abstract Over 30 years ago, when we first reported the selective photoinhibition of photosystem I (PSI) in chilling-sensitive plants at chilling temperatures, the inhibition tended to be regarded as a specific phenomenon observed only under unusual conditions.
Sonoike K.
europepmc   +4 more sources

The cryo-EM structure of Photosystem I from Chromera velia with a bound superoxide dismutase heterodimer [PDF]

Nature Communications
Photosystem I is a key component of the solar energy conversion machinery in oxygenic photosynthesis, and its core, where photochemistry occurs, is highly conserved.
Xukun Yuan, Martin Lukeš, Pu Qian, Quentin Charras, Tomáš Smrčka, Petr Man, Lucie Kovářová, Peter Koník, Emmanuel Heilmann, Ashraf Al-Amoudi, Roman Sobotka, Andreas Naschberger   +11 more
doaj   +2 more sources

The natural herbicide rhein targets photosystem I [PDF]

Scientific Reports
The natural anthraquinone rhein has been identified as a novel herbicide with a potentially new mode of action using a generative AI system for functional molecules discovery.
Alyssa Twitty, Hamlin Barnes, Noa Levy, Yaniv Mizrahi, Yosef Geva, Yael Phillip, Franck E. Dayan   +6 more
doaj   +2 more sources

Shining light on dinoflagellate photosystem I [PDF]

Nature Communications
Dinoflagellates are ecologically important and essential to corals and other cnidarians as phytosymbionts, but their photosystems had been underexplored. Recently, photosystem I (PSI) of dinoflagellate Symbiodinium sp.
Senjie Lin, Shuaishuai Wu, Jiamin He, Xiaoyu Wang, Arthur R. Grossman   +4 more
doaj   +2 more sources

The Plasticity of Photosystem I

Plant and Cell Physiology, 2021
Abstract Most of life’s energy comes from sunlight, and thus, photosynthesis underpins the survival of virtually all life forms. The light-driven electron transfer at photosystem I (PSI) is certainly the most important generator of reducing power at the cellular level and thereby largely determines the global amount of enthalpy in living
Michael Hippler, Nathan Nelson
openaire   +2 more sources

Photorespiration Enhances Acidification of the Thylakoid Lumen, Reduces the Plastoquinone Pool, and Contributes to the Oxidation of P700 at a Lower Partial Pressure of CO₂ in Wheat Leaves

Plants, 2020
The oxidation of P700 in photosystem I (PSI) is a robust mechanism that suppresses the production of reactive oxygen species. We researched the contribution of photorespiration to the oxidation of P700 in wheat leaves.
Shinya Wada, Yuji Suzuki, Chikahiro Miyake   +2 more
doaj   +1 more source

Photosystem stoichiometry adjustment is a photoreceptor-mediated process in Arabidopsis

Scientific Reports, 2022
Plant growth under spectrally-enriched low light conditions leads to adjustment in the relative abundance of the two photosystems in an acclimatory response known as photosystem stoichiometry adjustment.
Iskander M. Ibrahim, Steven D. McKenzie, Jae Chung, Uma K. Aryal, Walter D. Leon-Salas, Sujith Puthiyaveetil   +5 more
doaj   +1 more source

Polymer-Modified Single-Walled Carbon Nanotubes Affect Photosystem II Photochemistry, Intersystem Electron Transport Carriers and Photosystem I End Acceptors in Pea Plants

Molecules, 2021
Single-walled carbon nanotubes (SWCNT) have recently been attracting the attention of plant biologists as a prospective tool for modulation of photosynthesis in higher plants.
Nia Petrova, Momchil Paunov, Petar Petrov, Violeta Velikova, Vasilij Goltsev, Sashka Krumova   +5 more
doaj   +1 more source

Special issue in honour of Prof. Reto J. Strasser - Influence of Cuscuta campestris Yunck. on the photosynthetic activity of Ipomoea tricolor Cav. - in vivo chlorophyll a fluorescence assessment

Photosynthetica, 2020
Cuscuta campestris Yunck. is a parasitic plant, acquiring nutrients from the hosts. Although a generalist, its hosts differ in their susceptibility. Ipomoea tricolor Cav. is a semi-compatible host - C.
L. ZAGORCHEV, A. TRAIANOVA, D. TEOFANOVA, J. LI, M. KOUZMANOVA, V. GOLTSEV   +5 more
doaj   +1 more source

Photophysiological and photosynthetic complex changes during iron starvation in Synechocystis sp. PCC 6803 and Synechococcus elongatus PCC 7942. [PDF]

PLoS ONE, 2013
Iron is an essential component in many protein complexes involved in photosynthesis, but environmental iron availability is often low as oxidized forms of iron are insoluble in water.
Jared M Fraser, Sarah E Tulk, Jennifer A Jeans, Douglas A Campbell, Thomas S Bibby, Amanda M Cockshutt   +5 more
doaj   +1 more source