The water-water cycle in chloroplasts: scavenging of active oxygens and dissipation of excess photons

K Asada - Annual review of plant biology, 1999 - annualreviews.org
▪ Abstract Photoreduction of dioxygen in photosystem I (PSI) of chloroplasts generates
superoxide radicals as the primary product. In intact chloroplasts, the superoxide and the …

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 …

Oxidative stress in plants

D Inze, M Van Montagu - Current opinion in Biotechnology, 1995 - Elsevier
During the past few years, considerable progress has been made in understanding how
plants protect themselves against oxidative stress. Genes encoding plant antioxidant …

PROTON GRADIENT REGULATION5 Is Essential for Proper Acclimation of Arabidopsis Photosystem I to Naturally and Artificially Fluctuating Light Conditions

M Suorsa, S Järvi, M Grieco, M Nurmi… - The Plant …, 2012 - academic.oup.com
In nature, plants are challenged by constantly changing light conditions. To reveal the
molecular mechanisms behind acclimation to sometimes drastic and frequent changes in …

Physiological functions of cyclic electron transport around photosystem I in sustaining photosynthesis and plant growth

W Yamori, T Shikanai - Annual review of plant biology, 2016 - annualreviews.org
The light reactions in photosynthesis drive both linear and cyclic electron transport around
photosystem I (PSI). Linear electron transport generates both ATP and NADPH, whereas PSI …

[HTML][HTML] Photosystem II photoinhibition-repair cycle protects Photosystem I from irreversible damage

M Tikkanen, NR Mekala, EM Aro - Biochimica et Biophysica Acta (BBA) …, 2014 - Elsevier
Abstract Photodamage of Photosystem II (PSII) has been considered as an unavoidable and
harmful reaction that decreases plant productivity. PSII, however, has an efficient and …

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 …

Superoxide and singlet oxygen produced within the thylakoid membranes both cause photosystem I photoinhibition

D Takagi, S Takumi, M Hashiguchi, T Sejima… - Plant …, 2016 - academic.oup.com
Abstract Photosystem I (PS I) photoinhibition suppresses plant photosynthesis and growth.
However, the mechanism underlying PS I photoinhibition has not been fully clarified. In this …

Molecular mechanisms involved in plant photoprotection

A Pinnola, R Bassi - Biochemical Society Transactions, 2018 - portlandpress.com
Photosynthesis uses sunlight to convert water and carbon dioxide into biomass and oxygen.
When in excess, light can be dangerous for the photosynthetic apparatus because it can …

Effects of chilling on the structure, function and development of chloroplasts

X Liu, Y Zhou, J **ao, F Bao - Frontiers in plant science, 2018 - frontiersin.org
Chloroplasts are the organelles that perform energy transformation in plants. The normal
physiological functions of chloroplasts are essential for plant growth and development …