Results 41 to 50 of about 73,975 (239)

PETO Interacts with Other Effectors of Cyclic Electron Flow in Chlamydomonas [PDF]

Molecular Plant, 2016
While photosynthetic linear electron flow produces both ATP and NADPH, cyclic electron flow (CEF) around photosystem I (PSI) and cytochrome b6f generates only ATP. CEF is thus essential to balance the supply of ATP and NADPH for carbon fixation; however, it remains unclear how the system tunes the relative levels of linear and cyclic flow.
Hiroko, Takahashi, Stefan, Schmollinger, Jae-Hyeok, Lee, Michael, Schroda, Fabrice, Rappaport, Francis-André, Wollman, Olivier, Vallon   +6 more
openaire   +2 more sources

Cadmium Caused Different Toxicity to Photosystem I and Photosystem II of Freshwater Unicellular Algae Chlorella pyrenoidosa (Chlorophyta)

Toxics, 2022
Heavy metals such as Cd pose environmental problems and threats to a variety of organisms. The effects of cadmium (Cd) on the growth and activities of photosystem I (PSI) and photosystem II (PSII) of Chlorella pyrenoidosa were studied. The growth rate of
Shuzhi Wang, Rehemanjiang Wufuer, Jia Duo, Wenfeng Li, Xiangliang Pan   +4 more
doaj   +1 more source

Differential Response of the Photosynthetic Machinery to Fluctuating Light in Mature and Young Leaves of Dendrobium officinale

Frontiers in Plant Science, 2022
A key component of photosynthetic electron transport chain, photosystem I (PSI), is susceptible to the fluctuating light (FL) in angiosperms. Cyclic electron flow (CEF) around PSI and water-water cycle (WWC) are both used by the epiphytic orchid ...
Ying-Jie Yang, Qi Shi, Qi Shi, Hu Sun, Hu Sun, Ren-Qiang Mei, Wei Huang, Wei Huang   +7 more
doaj   +1 more source

How Does Cyclic Electron Flow Alleviate Photoinhibition in Arabidopsis?     [PDF]

Plant Physiology, 2008
Abstract Cyclic electron flow (CEF) around photosystem I has a role in avoiding photoinhibition of photosystem II (PSII), which occurs under conditions in which the rate of photodamage to PSII exceeds the rate of its repair. However, the molecular mechanism underlying how CEF contributes to photoprotection is not yet well understood.
Takahashi, Shunichi, Milward, Sara, Fan, Da-Yong, Chow, Wah S (Fred), Badger, Murray   +4 more
openaire   +3 more sources

High efficient cyclic electron flow and functional supercomplexes in Chlamydomonas cells

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2022
A very high rate for cyclic electron flow (CEF) around PSI (~180 s-1 or 210 s-1 in minimum medium or in the presence of a carbon source respectively) is measured in the presence of methyl viologen (MV) in intact cells of Chlamydomonas reinhardtii under anaerobic conditions.
Joliot, Pierre, Sellés, Julien, Wollman, Françis-André, Verméglio, André   +3 more
openaire   +4 more sources

In vivo spectroscopy and NMR metabolite fingerprinting approaches to connect the dynamics of photosynthetic and metabolic phenotypes in resurrection plant Haberlea rhodopensis during desiccation and recovery

Frontiers in Plant Science, 2015
The resurrection plant Haberlea rhodopensis was used to study dynamics of drought response of photosynthetic machinery parallel with changes in primary metabolism.
Petko eMladenov, Giovanni eFinazzi, Richard eBligny, Daniela eMoyankova, Diana eZasheva, Sabine eBrugiere, Anne-Marie eBoisson, Vasilena eKrasteva, Kalina eAlipieva, Svetlana eSimova, Magdalena eTchorbadjieva, Vasiliy eGoltsev, Myriam eFerro, Norbert eRolland, Dimitar eDjilianov   +14 more
doaj   +1 more source

Different Strategies for Photosynthetic Regulation under Fluctuating Light in Two Sympatric Paphiopedilum Species

Cells, 2021
Fluctuating light can cause selective photoinhibition of photosystem I (PSI) in angiosperms. Cyclic electron flow (CEF) around PSI and electron flux from water via the electron transport chain to oxygen (the water-water cycle) play important roles in ...
Jing-Qiu Feng, Wei Huang, Ji-Hua Wang, Shi-Bao Zhang   +3 more
doaj   +1 more source

Electrochemical Characterization of Aromatic Molecules with 1,4-Diaza Groups for Flow Battery Applications

Molecules, 2021
The aqueous redox flow battery is a promising technology for large-scale low cost energy storage. The rich possibilities for the tailoring of organic molecules and the possibility to discover active materials of lower cost and decreased environmental ...
Alexandros Pasadakis-Kavounis, Vanessa Baj, Johan Hjelm   +2 more
doaj   +1 more source

Electron flow through NDH-1 complexes is the major driver of cyclic electron flow-dependent proton pumping in cyanobacteria [PDF]

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2020
Abstract Cyclic electron flow (CEF) around Photosystem I is vital to balancing the photosynthetic energy budget of cyanobacteria and other photosynthetic organisms. The coupling of CEF to proton pumping has long been hypothesized to occur, providing proton motive force (PMF) for the synthesis of ATP with no net cost ...
Neil T. Miller, Michael D. Vaughn, Robert L. Burnap   +2 more
openaire   +3 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source