Photosynthetic Processes and Mechanisms

The paper measures excitation spillover from PSII to PSI in leaves at 77K and finds that spillover ratios are comparable across growth light conditions and higher in State 1.

This study investigates how amino acid changes in C4-NADP-ME and nonC4-NADP-ME enzymes affect their oligomeric states and function in Poaceae species.

The paper develops a chloroplast media to sustain ex vivo chloroplast function using metabolic modeling and isolated chloroplasts from Chlamydomonas reinhardtii.

This study investigates the pyrenoid-based CO2-concentrating mechanism in hornworts, revealing conserved components and a spatial model similar to Chlamydomonas.

The paper measures NPQ relaxation variation in soybean genotypes to assess its potential for improving photosynthesis and yield.

The paper investigates how substituting chlorophyll d for chlorophyll a at the ChlD1 site in PSII shifts the spectral range beyond far-red light, using quantum mechanical calculations and simulations.

The paper analyzes the evolutionary dynamics of RuBisCO, showing how the small subunit influenced the enzyme's conformational flexibility and response to atmospheric changes.

The paper examines how magnesium and manganese affect Rubisco activity in two Plantago lanceolata ecotypes adapted to different CO2 environments, finding differences in enzyme kinetics.

The paper uses chlorophyll fluorescence responses to CO2 elimination to identify and characterize CAM plants, finding differences between CAM and C3 species.

The paper identifies a rare allele of ndhm1 in maize that improves cold tolerance and photosynthetic efficiency through NDH-mediated cyclic electron transport.

This study overexpresses NPQ-related genes in Setaria viridis to assess NPQ acclimation rates, finding faster NPQ induction but no photosynthetic benefit.

This paper investigates the mechanism of proton release during water oxidation in Photosystem II, identifying key residues and pathways involved in proton transfer and storage.

Cryo-ET of 169 nm β-carboxysomes from low-light Synechococcus elongatus reveals ~639 Rubiscos in concentric layers with CcmM bound at RbcL grooves; QconCAT proteomics yields the complete absolute protein stoichiometry.

The paper reports cryo-EM structures of PSI-FCPI complexes from Thalassiosira pseudonana under high light, revealing light-adaptive strategies and convergent evolution in diatom FCPIs.

The paper develops Chloro-Count, a deep learning tool, to quantify chloroplast occupancy in rice bundle sheath cells and shows that OsHAP3H loss increases chloroplast numbers by 50%.

The paper introduces a method to measure leaf gas exchange and chlorophyll fluorescence simultaneously over long periods in situ, revealing diurnal and seasonal patterns in photosynthesis regulation.

The paper develops a mathematical model of a non-canonical carbon-concentrating mechanism in the alga Cyanidioschyzon merolae, identifying key parameters that enable its function.

This study identifies distinct roles of PGRL1 paralogs in photoprotection within C4 photosynthesis, showing PGRL1{beta} enables rapid photoprotection while PGRL1 maintains oxidation under steady-state high light.

The paper identifies organellar genetic variation in Arabidopsis thaliana and shows its impact on photosynthesis through cybrid analysis and high-throughput phenotyping.

The study finds a negative correlation between photoinhibition repair rates in cold-acclimated Arabidopsis thaliana and the mean annual temperature of their habitats.

The paper identifies a Prochlorococcus lineage in oxygen deficient zones that expresses both form I and form II rubiscos, suggesting an adaptation to low oxygen environments.

This study identifies the N-terminal extension of cpTatC as interacting with the precursor mature domain during TAT translocation, suggesting a role in priming the transporter.

This study uses cryo-ET and AI-based methods to analyze thylakoid membrane organization in spinach chloroplasts, revealing similarities to green algae despite differences in 3D architecture.

The paper investigates the effects of TyrD*, TyrZ*, and QA*- radical formation on the Soret region absorption spectra in Photosystem II from multiple species and mutants, identifying PD1 as the blue-shifted species and suggesting other pigments may contribute to shifts from TyrD* and TyrZ*.

The paper shows that multiple mechanisms of essentiality in protein-protein interactions can persist over time, even if individual mechanisms are lost, using Rubisco as a case study.

This study presents the cryo-EM structure of the spinach plastid-encoded RNA polymerase complex, revealing its composition and spatial arrangement of subunits and associated proteins.

This study identifies NPQ-independent mechanisms in Chlorella ohadii that protect against oxidative stress under high light.

This study identifies SOQ1 as a methionine sulfoxide reductase in Arabidopsis chloroplasts that regulates photoprotective qH by reducing oxidized methionine in LCNP.

This study identifies the localization of photosynthetic biogenesis and repair proteins in Arabidopsis thylakoid subdomains, revealing spatial heterogeneity and the curvature fraction's role in early photosystem assembly.