Flavodiiron-mediated O2 photoreduction at photosystem I acceptor-side provides photoprotection to conifer thylakoids in early spring

P Bag, T Shutova, D Shevela, J Lihavainen… - Nature …, 2023‏ - nature.com
Green organisms evolve oxygen (O2) via photosynthesis and consume it by respiration.
Generally, net O2 consumption only becomes dominant when photosynthesis is suppressed …

Role of melatonin in promoting plant growth by regulating carbon assimilation and ATP accumulation

Z Teng, W Zheng, S Jiang, SB Hong, Z Zhu, Y Zang - Plant Science, 2022‏ - Elsevier
Melatonin (MT) is a phytohormone important in mediating diverse plant growth processes. In
this study, we performed transcriptomic, qRT-PCR, physiological and biochemical analyses …

Processes independent of nonphotochemical quenching protect a high-light-tolerant desert alga from oxidative stress

G Levin, M Yasmin, O Liran, R Hanna… - Plant …, 2025‏ - academic.oup.com
Nonphotochemical quenching (NPQ) mechanisms are crucial for protecting photosynthesis
from photoinhibition in plants, algae, and cyanobacteria, and their modulation is a long …

Accounting for photosystem I photoinhibition sheds new light on seasonal acclimation strategies of boreal conifers

S Grebe, A Porcar-Castell, A Riikonen… - Journal of …, 2024‏ - academic.oup.com
The photosynthetic acclimation of boreal evergreen conifers is controlled by regulatory and
photoprotective mechanisms that allow conifers to cope with extreme environmental …

Cyclic electron flow and Photosystem II-less photosynthesis

M Ermakova, D Fitzpatrick… - Functional Plant …, 2024‏ - CSIRO Publishing
Oxygenic photosynthesis is characterised by the cooperation of two photo-driven
complexes, Photosystem II (PSII) and Photosystem I (PSI), sequentially linked through a …

Strong heterologous electron sink outcompetes alternative electron transport pathways in photosynthesis

M Hubáček, LT Wey, R Kourist… - The Plant …, 2024‏ - Wiley Online Library
Improvement of photosynthesis requires a thorough understanding of electron partitioning
under both natural and strong electron sink conditions. We applied a wide array of state‐of …

[HTML][HTML] A novel role of pipecolic acid biosynthetic pathway in drought tolerance through the antioxidant system in tomato

P Wang, Q Luo, W Yang, GJ Ahammed, S Ding… - Antioxidants, 2021‏ - mdpi.com
With global warming and water shortage, drought stress is provoking an increasing impact
on plant growth, development, and crop productivity worldwide. Pipecolic acid (Pip) is an …

Maximal cyclic electron flow rate is independent of PGRL1 in Chlamydomonas

WJ Nawrocki, B Bailleul, P Cardol, F Rappaport… - … et Biophysica Acta (BBA …, 2019‏ - Elsevier
Cyclic electron flow (CEF) is defined as a return of the reductants from the acceptor side of
Photosystem I (PSI) to the pool of its donors via the cytochrome b 6 f. It is described to be …

[HTML][HTML] In-vivo quantification of electron flow through photosystem I–Cyclic electron transport makes up about 35% in a cyanobacterium

ML Theune, S Hildebrandt, A Steffen-Heins… - … et Biophysica Acta (BBA …, 2021‏ - Elsevier
Photosynthetic electron flow, driven by photosystem I and II, provides chemical energy for
carbon fixation. In addition to a linear mode a second cyclic route exists, which only involves …

Cyclic electron flow modulate the linear electron flow and reactive oxygen species in tomato leaves under high temperature

J Lu, Z Yin, T Lu, X Yang, F Wang, M Qi, T Li, Y Liu - Plant Science, 2020‏ - Elsevier
The cyclic electron flow (CEF) around photosystem I (PSI) plays a crucial role in
photosynthesis and also functions in plant tolerance of abiotic environmental stress …