Results 41 to 50 of about 605,158 (291)

Melatonin induced changes in photosynthetic efficiency as probed by OJIP associated with improved chromium stress tolerance in canola (Brassica napus L.)

Heliyon, 2020
Chromium toxicity is considered as a major problem for agricultural soil that reduced crop productivity by affecting photosynthetic tissues. Exogenous application of melatonin can alleviate the adverse effects of chromium toxicity on plant growth ...
Ahsan Ayyaz, Misbah Amir, Sarah Umer, Muhammad Iqbal, Hussan Bano, Hafiza Saima Gul, Yamna Noor, Aneela kanwal, Ayesha khalid, Muhammad Javed, Habib R. Athar, Zafar Ullah Zafar, Muhammad Ahsan Farooq   +12 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

Status of the COMET experiment [PDF]

EPJ Web of Conferences, 2023
The COMET (COherent Muon to Electron Transition) experiment, currently being built in Tokai, Japan, will search for the coherent neutrinoless transition of muons to electrons in the coulomb field of atomic nuclei.
Jansen Andreas
doaj   +1 more source

Multi-heme Cytochromes in Shewanella oneidensis MR-1:Structures, functions and opportunities [PDF]

, 2015
Multi-heme cytochromes are employed by a range of microorganisms to transport electrons over distances of up to tens of nanometers. Perhaps the most spectacular utilization of these proteins is in the reduction of extracellular solid substrates ...
Brown JP, Collins MJ, Coursolle D, Fonseca BM, Jochen Blumberger, Julea N. Butt, Kevin M. Rosso, Marian Breuer, Song Y, Teixeira M   +9 more
core   +1 more source

Electronic and optical properties of SnX2(X=S, Se)-InSe van der Waals heterostructures from first- principle calculations [PDF]

, 2019
In this work from first-principles simulations we investigate bilayer van der Waals heterostructures (vdWh) of emerging 2-dimensional (2D) optical materials SnS 2 and SnSe 2 with monolayer InSe. With density functional theory (DFT) calculations, we study
Sengupta, Amretashis
core   +2 more sources

Structural Coupling of Extrinsic Proteins with the Oxygen-Evolving Center in Photosystem II

Frontiers in Plant Science, 2016
Photosystem II (PSII), which catalyzes photosynthetic water oxidation, is composed of more than 20 subunits, including membrane-intrinsic and -extrinsic proteins.
Kentaro eIfuku, Takumi eNoguchi
doaj   +1 more source

Role of multiple subband renormalization in the electronic transport of correlated oxide superlattices

, 2008
Metallic behavior of band-insulator/ Mott-insulator interfaces was observed in artificial perovskite superlattices such as in nanoscale SrTiO3/LaTiO3 multilayers.
A. Ohtomo, A. Rüegg, A. Rüegg, D.R. Hamann, G. Beni, G. Kotliar, H. Ohta, J. Chakhalian, J.K. Freericks, K. Shibuya, M. Takizawa, M.C. Gutzwiller, N. Nakagawa, P.M. Chaikin, R. Frésard, S. Mukerjee, S. Okamoto, S. Okamoto, S. Okamoto, S. Wehrli, S.S.A. Seo, T.M. Rice, W. Koshibae, W.F. Brinkman   +23 more
core   +1 more source

Mitochondrial electron-transport-chain inhibitors of complexes I and II induce autophagic cell death mediated by reactive oxygen species [PDF]

Journal of Cell Science, 2007
Autophagy is a self-digestion process important for cell survival during starvation. It has also been described as a form of programmed cell death. Mitochondria are important regulators of autophagy-induced cell death and damaged mitochondria are often degraded by autophagosomes.
Yongqiang, Chen, Eileen, McMillan-Ward, Jiming, Kong, Sara J, Israels, Spencer B, Gibson   +4 more
openaire   +2 more sources

Insights into melatonin-induced photosynthetic electron transport under low-temperature stress in cucumber

Frontiers in Plant Science, 2022
In this study, the differences in chlorophyll fluorescence transient (OJIP) and modulated 820 nm reflection (MR820) of cucumber leaves were probed to demonstrate an insight into the precise influence of melatonin (MT) on cucumber photosystems under low ...
Pei Wu, Pei Wu, Yadong Ma, Yadong Ma, Golam Jalal Ahammed, Baoyu Hao, Baoyu Hao, Jingyi Chen, Jingyi Chen, Wenliang Wan, Wenliang Wan, Yanhui Zhao, Yanhui Zhao, Huimei Cui, Huimei Cui, Wei Xu, Wei Xu, Jinxia Cui, Jinxia Cui, Huiying Liu, Huiying Liu   +20 more
doaj   +1 more source

Knock-Out of the Genes Coding for the Rieske Protein and the ATP-Synthase δ-Subunit of Arabidopsis [PDF]

, 2003
In Arabidopsis, the nuclear genes PetC and AtpD code for the Rieske protein of the cytochrome b6/f (cyt b6/f) complex and the δ-subunit of the chloroplast ATP synthase (cpATPase), respectively.
Dietzmann, Angela, Jahns, Peter, Joliot, Anne, Joliot, Pierre, Leister, Dario, Levin, Joshua Z., Maiwald, Daniela, Pesaresi, Paolo, Salamini, Francesco   +8 more
core   +1 more source