Photosynthetic Processes and Mechanisms

The paper examines RbcL evolution in four plant clades, finding positive selection and convergent substitutions, with stability linked to temperature but weakened after phylogenetic correction.

This paper proposes and evaluates C3.5 photosynthesis, a novel strategy to enhance Rubisco efficiency by coupling mitochondrial bioenergetics to chloroplast carbon assimilation in Arabidopsis.

This study shows that antimycin A directly suppresses photosystem II activity, unlike antimycin A3 or myxothiazol, and recommends using AA3 and myxothiazol for specific pathways.

The paper creates and characterizes LH2 variants in PNSB to study energy transfer dynamics and their impact on light-harvesting efficiency and bacterial fitness.

The paper identifies RNA-binding proteins in cyanobacteria, revealing that metabolic enzymes have conserved RNA-binding functions across species.

This study shows that PGR5 enables efficient C4 photosynthesis under fluctuating light by supporting proton motive force and energy-dependent non-photochemical quenching.

This paper reviews methods for detecting Carbon Concentrating Mechanisms (CCMs) in aquatic plants and proposes a new molecular assay for PEPC expression to better characterize photosynthetic diversity in aquatic species.

The paper investigates the evolutionary changes in mitochondrial and plastid targeting sequences in land plants, showing divergence in charge and the emergence of a phosphatase involved in targeting sequence processing.

The paper investigates the evolutionary origin of chaperone dependence in Rubisco biogenesis and finds that this dependence evolved neutrally and can be reversed without affecting catalytic function.

The paper expresses heterologous photosynthesis genes from Chloroflexota in Rhodobacter sphaeroides to study thermophilic photosynthesis and provides metagenomic analysis of high-temperature reaction center sequences.

The paper determines RubisCO structures in Chlamydomonas reinhardtii using CryoET, revealing their arrangement and interactions within the pyrenoid.

This study identifies chloroplast NADH dehydrogenase-like complex (NDH) as a protective factor against PSI photoinhibition under chilling stress by comparing two cucumber cultivars.

The paper identifies a structural variation in lhcb6 in maize landraces that affects photosystem II maximum quantum efficiency through differential accumulation of LHCII antenna components.

This study investigates CAO gene duplication across Viridiplantae, finding independent duplications in land plants and a conserved degron sequence in embryophytes.

The paper identifies structural determinants of far-red absorption in Photosystem I of Arabidopsis by analyzing cryo-EM structures and quantum mechanics calculations.

The paper presents a cryo-EM structure of a Cyt c:PSI complex from Chlamydomonas reinhardtii, revealing key interactions involved in electron transfer.

This study identifies the evolutionary origin of Lhcx in diatoms and shows its role in photoprotection through non-photochemical quenching.

The paper investigates NPQ development in aspen and Arabidopsis npq mutants under photoinhibitory and non-photoinhibitory conditions, finding that sustained quenching can occur independently of photoinhibition.

This study identifies MutS2A and MutS2B as critical for plastid ribosome quality control in Arabidopsis, resolving ribosome collisions and supporting tissue greening during de-etiolation.

This study shows that reducing Cyt b6/f content in tobacco enhances PSI protection against photoinhibition under fluctuating light but reduces electron transport capacity.

This study identifies a unique Lhce light-harvesting complex in Euglena gracilis that dynamically associates with PSII and expands PSI light harvesting, revealing an alternative strategy for light acclimation in secondary plastids.

This study shows Chlamydomonas reinhardtii can rapidly reprogram its photoprotective strategies in response to changes in diurnal light intensity, with LL-acclimated cells recovering faster than HL-acclimated cells.

This study validates the use of Clark-type O2 electrodes to measure photosynthesis and respiration in Arabidopsis seedlings, showing their sensitivity to environmental and genetic factors.

This study characterizes Photosystem I in a red-shifted Acaryochloris marina strain, revealing structural and spectroscopic mechanisms for far-red light absorption and the role of PsaX2 in enabling these adaptations.

This study shows that both the violaxanthin and diadinoxanthin xanthophyll cycles can efficiently contribute to NPQ in the diatom Phaeodactylum tricornutum.

This study compares single-cell transcriptomes of two independently evolved C4 dicot species to identify conserved gene expression patterns in bundle sheath cells.

The paper identifies common variants of the Farquhar-von-Caemmerer-Berry model that can introduce errors in photosynthetic parameter estimation, particularly the 'min-A variant' and omission of triose phosphate utilization thresholds.

This study uses cryo-ET to reveal the structure and dynamics of native pyrenoid Rubisco in Chlamydomonas reinhardtii, showing variations in active site and dimer interface and associations with binding proteins.

This study shows that RBD1 and HCF136 opposingly regulate psbA translation in response to light-induced D1 damage in chloroplasts.

This study identifies CrHCF244 as a psbA translation factor in Chlamydomonas, showing functional conservation with Arabidopsis HCF244 and suggesting alternative factors exist.