ROS production and signalling in chloroplasts: cornerstones and evolving concepts

CH Foyer, G Hanke - The Plant Journal, 2022 - Wiley Online Library
Reactive oxygen species (ROS) such as singlet oxygen, superoxide (O2●−) and hydrogen
peroxide (H2O2) are the markers of living cells. Oxygenic photosynthesis produces ROS in …

Dissipation of light energy absorbed in excess: the molecular mechanisms

R Bassi, L Dall'Osto - Annual review of plant biology, 2021 - annualreviews.org
Light is essential for photosynthesis. Nevertheless, its intensity widely changes depending
on time of day, weather, season, and localization of individual leaves within canopies. This …

Light stress and photoprotection in Chlamydomonas reinhardtii

E Erickson, S Wakao, KK Niyogi - The Plant Journal, 2015 - Wiley Online Library
Plants and algae require light for photosynthesis, but absorption of too much light can lead
to photo‐oxidative damage to the photosynthetic apparatus and sustained decreases in the …

Differential FeS cluster photodamage plays a critical role in regulating excess electron flow through photosystem I

A Tiwari, F Mamedov, D Fitzpatrick, S Gunell… - Nature Plants, 2024 - nature.com
The photosynthetic electron flux from photosystem I (PSI) is mainly directed to NADP+ and
CO2 fixation, but a fraction is always shared between alternative and cyclic electron …

[HTML][HTML] Photosynthetic, respiratory and extracellular electron transport pathways in cyanobacteria

DJ Lea-Smith, P Bombelli, R Vasudevan… - Biochimica et Biophysica …, 2016 - Elsevier
Cyanobacteria have evolved elaborate electron transport pathways to carry out
photosynthesis and respiration, and to dissipate excess energy in order to limit cellular …

PGR5-dependent cyclic electron flow protects photosystem I under fluctuating light at donor and acceptor sides

H Yamamoto, T Shikanai - Plant physiology, 2019 - academic.oup.com
In response to a sudden increase in light intensity, plants must cope with absorbed excess
photon energy to protect photosystems from photodamage. Under fluctuating light, PSI is …

Regulatory electron transport pathways of photosynthesis in cyanobacteria and microalgae: Recent advances and biotechnological prospects

L Nikkanen, D Solymosi, M Jokel… - Physiologia …, 2021 - Wiley Online Library
Cyanobacteria and microalgae perform oxygenic photosynthesis where light energy is
harnessed to split water into oxygen and protons. This process releases electrons that are …

Photoprotection of photosystems in fluctuating light intensities

Y Allahverdiyeva, M Suorsa… - … of experimental botany, 2015 - academic.oup.com
Oxygenic photosynthetic organisms experience strong fluctuations in light intensity in their
natural terrestrial and aquatic growth environments. Recent studies with both plants and …

Contribution of cyclic and pseudo-cyclic electron transport to the formation of proton motive force in chloroplasts

T Shikanai, H Yamamoto - Molecular plant, 2017 - cell.com
Photosynthetic electron transport is coupled to proton translocation across the thylakoid
membrane, resulting in the formation of a trans-thylakoid proton gradient (ΔpH) and …

Artificial remodelling of alternative electron flow by flavodiiron proteins in Arabidopsis

H Yamamoto, S Takahashi, MR Badger, T Shikanai - Nature plants, 2016 - nature.com
In photosynthesis, linear electron transport from water to nicotinamide adenine dinucleotide
phosphate (NADP+) cannot satisfy the ATP/NADPH production stoichiometry required by the …