Photosynthetic control at the cytochrome b6f complex

GE Degen, MP Johnson - The Plant Cell, 2024 - academic.oup.com
Photosynthetic control (PCON) is a protective mechanism that prevents light-induced
damage to PSI by ensuring the rate of NADPH and ATP production via linear electron …

Critical role of cyclic electron transport around photosystem I in the maintenance of photosystem I activity

R Kobayashi, H Yamamoto, K Ishibashi… - The Plant …, 2024 - Wiley Online Library
In angiosperms, cyclic electron transport around photosystem I (PSI) is mediated by two
pathways that depend on the PROTON GRADIENT REGULATION 5 (PGR5) protein and the …

The uneven molecular distribution: a connection with plant functioning and stress resilience

S Jaiswal, DK Tripathi, R Gupta, FJ Corpas… - Phytochemistry …, 2024 - Springer
The current global population is approximately 8 billion. So from a socio-economic point of
view, governmental policies are intended to secure at least a minimum of the natural …

Proton Gradient Regulation 5 is required to avoid photosynthetic oscillations during light transitions

GE Degen, F Pastorelli… - Journal of Experimental …, 2024 - academic.oup.com
The production of ATP and NADPH by the light reactions of photosynthesis and their
consumption by the Calvin–Benson–Bassham (CBB) cycle and other downstream metabolic …

A pgr5 suppressor screen uncovers two distinct suppression mechanisms and links cytochrome b6f complex stability to PGR5

JF Penzler, B Naranjo, S Walz, G Marino… - The Plant …, 2024 - academic.oup.com
Abstract PROTON GRADIENT REGULATION5 (PGR5) is thought to promote cyclic electron
flow, and its deficiency impairs photosynthetic control and increases photosensitivity of …

High cyclic electron transfer via the PGR5 pathway in the absence of photosynthetic control

GE Degen, PJ Jackson, MS Proctor, N Zoulias… - Plant …, 2023 - academic.oup.com
The light reactions of photosynthesis couple electron and proton transfers across the
thylakoid membrane, generating NADPH, and proton motive force (pmf) that powers the …

Chromatin accessibility dynamics insight into crosstalk between regulatory landscapes in poplar responses to multiple treatments

W Wang, K Chen, N Chen, J Gao, W Zhang… - Tree …, 2023 - academic.oup.com
Perennial trees develop and coordinate endogenous response signaling pathways,
including their crosstalk and convergence, to cope with various environmental stresses …

Cyclic electron flow compensates loss of PGDH3 and concomitant stromal NADH reduction

M Krämer, NE Blanco, JF Penzler, GA Davis… - Scientific Reports, 2024 - nature.com
In nature plants constantly experience changes in light intensities. Low illumination limits
photosynthesis and growth. However, also high light intensities are a threat to plants as the …

Cyclic and pseudo-cyclic electron pathways play antagonistic roles during nitrogen deficiency in Chlamydomonas reinhardtii

O Dao, A Burlacot, F Buchert, M Bertrand… - Plant …, 2025 - academic.oup.com
Nitrogen (N) scarcity frequently constrains global biomass productivity. N deficiency halts
cell division, downregulates photosynthetic electron transfer (PET), and enhances carbon …

PGR5 is needed for redox-dependent regulation of ATP synthase both in chloroplasts and in cyanobacteria

L Nikkanen, LT Wey, R Woodford, H Mustila… - bioRxiv, 2024 - biorxiv.org
Control of the proton motive force (pmf) via regulation of ATP synthase constitutes a key
mechanism for photosynthetic organisms to maintain redox balance and induce …