Photosynthetic Processes and Mechanisms

Exploring the diversity and physiological characteristics of RubisCO-mediated carbon fixation in culturable prokaryotes

This study identifies carbon-fixing prokaryotes in JCM strains using genome analysis, revealing diverse RubisCO forms and potential autotrophic capabilities in strains lacking experimental evidence.

Response of photosynthetic efficiency to short-term fluctuating light and cold in tomato

This study examines how four tomato genotypes respond to irradiance fluctuations and cold stress, showing variation in photosynthetic efficiency and recovery.

A photorespiratory glyoxylate shunt in the cytosol supports photosynthesis and plant growth under high light conditions in Arabidopsis

The paper identifies a cytosolic glyoxylate shunt that supports photosynthesis and plant growth under high light in Arabidopsis by rescuing photorespiratory mutants.

GET3B interacts with the thylakoidal ALB3 and ALB4 insertases and is involved in the initial stages of chloroplast biogenesis

This study identifies GET3B's role in chloroplast biogenesis by showing its interaction with ALB3 and ALB4 and its impact on photosystem II assembly and carbon fixation.

Sub-optimal temperature leads to tighter coupling between photosynthetic electron transport and CO2 assimilation under fluctuating light in maize.

The paper analyzes maize CO2 assimilation under fluctuating light and finds decoupling from electron transport at room temperature, but tighter coupling under suboptimal temperature due to feedback regulation.

An unrecognized and crucial role of chloroplast division in leaf variegation in Arabidopsis thaliana

This study identifies VAR2's role in chloroplast division and its impact on leaf variegation in Arabidopsis thaliana through genetic and microscopic analyses.

Structural elements of cyanobacterial co-factor-independent phosphoglycerate mutase that mediate regulation by PirC

This paper identifies structural elements in cyanobacterial iPGAM that mediate regulation by PirC, showing how deletions affect enzyme activity and carbon flux, with implications for biotechnological applications.

Faster relaxation of nonphotochemical quenching (NPQ) in C4 than in C3 species

This study shows that NPQ relaxation is faster in C4 species than in C3 species, driven by enhanced energy-dependent quenching and altered lumen pH regulation.

Increased chloroplast area in the rice bundle sheath through cell specific perturbation of brassinosteroid signalling

This study manipulates brassinosteroid signalling in rice to increase chloroplast area in bundle sheath cells, showing cell-specific control can enhance chloroplast compartment size without severe growth effects.

Alternatives to photorespiration: A systems-level analysis reveals mechanisms of enhanced plant productivity

Modelling 12 alternative photorespiratory pathways predicts the largest carbon-export gains for carbon-fixing designs (TaCo); complete decarboxylation bypasses help mainly by releasing CO2 in chloroplasts, raising carboxylation and recapturing lost CO2.

Regulation of Crassulacean Acid Metabolism at the protein level in the CAM plant Kalanchoë laxiflora

The paper shows CAM regulation in K. laxiflora involves more than transcript and protein abundance, including adaptive amino acid changes and phosphoproteome shifts between day and night.

Chloroplast-derived hydrogen peroxide coordinates photosynthesis with stomatal opening

This study identifies chloroplast-derived hydrogen peroxide as a signal coordinating stomatal opening with photosynthesis, showing its role in balancing carbon gain and water loss in plants.

ELIP is preferentially expressed in stomatal guard cells and has a role in stomatal opening upon transition to light

This study investigates ELIP function in tomato, showing preferential expression in stomatal guard cells and a role in stomatal opening during light transition.

Membranous translation platforms in the chloroplast of Chlamydomonas reinhardtii

The paper identifies two distinct membranous platforms in chloroplasts of Chlamydomonas reinhardtii involved in translation and thylakoid membrane biogenesis during chloroplast development.

High-density CRISPRi screens reveal adaptive transcriptional gradients in cyanobacteria

This study uses CRISPRi screens to identify transcriptional gradients in Synechococcus sp. PCC 7002 that improve growth under cold monochromatic light conditions.

Plant cold acclimation and its impact on sensitivity of carbohydrate metabolism

The paper investigates how changing light intensities during cold acclimation affect carbohydrate metabolism in Arabidopsis thaliana using experimental and computational methods.

A convenient and simple system for in vivo 13CO2 -labelling in plant leaves: Enhancing accessibility for tracer studies in photosynthesis

This paper introduces a simple 13CO2 delivery system for in vivo tracer studies in plant leaves, demonstrating its effectiveness in measuring 13C enrichment in amino acids after short exposure periods.

Complexome profiling of the Chlamydomonas psb28 mutant reveals THYLAKOID ENRICHED FRACTION 5 as an early photosystem II assembly factor

The Chlamydomonas psb28 mutant shows severe PSII assembly defects, and complexome profiling identifies TEF5 as a novel PSII assembly factor involved in CP47 assembly.

Engineering Rubisco Condensation in Chloroplasts to Manipulate Plant Photosynthesis

This study engineers Rubisco condensation in tobacco chloroplasts using sfGFP fusion to create pyrenoid-like structures, enhancing photosynthetic efficiency without affecting function.

Insights into CPSFL1 Induced Membrane Dynamics: A Multifaceted Regulator Linking Vesicle Formation to Thylakoid Biogenesis

This study identifies CPSFL1 as a key regulator of vesicle formation and thylakoid biogenesis in plants, showing its role in membrane dynamics and metabolite transport.

Light activates psbA translation in plants by relieving inhibition of translation factor HCF173 by the psbA ORF in cis

The paper shows that light activates psbA translation in plants by relieving repression from the psbA ORF, which is mediated by HCF173 and HCF244.

Predicting the diversity of photosynthetic light-harvesting using thermodynamics and machine learning

The paper predicts photosynthetic light-harvesting diversity using thermodynamics and machine learning, showing similar principles apply across light environments and suggesting potential for extraterrestrial photosynthesis.

New Insights into Plastocyanin-Cytochrome b6f Formation: the Role of Plastocyanin Phosphorylation

This study investigates how plastocyanin phosphorylation affects electron transfer between plastocyanin, cytochrome b6f, and photosystem I in Chlamydomonas reinhardtii, identifying phosphorylation's role in optimizing binding and transfer efficiency.

Structural basis for the RC-LH1 supercomplex of Dinoroseobacter shibae for anaerobic anoxygenic photosynthesis

This paper presents the cryo-EM structure of the RC-LH1 supercomplex from Dinoroseobacter shibae, revealing structural adaptations for anaerobic anoxygenic photosynthesis in oxygen-rich environments.

Tethering ferredoxin-NADP+ reductase to photosystem I promotes photosynthetic cyclic electron transfer

This study shows that tethering FNR to PSI in Chlamydomonas reinhardtii promotes CET over LET, reducing CO2 fixation.

Identification and Characterization of Compounds that Improve Plant Photosynthesis and Growth under Light Stress Conditions.

This study identifies anthraquinone derivatives that improve plant photosynthesis and growth under light stress by enhancing photoprotection without affecting non-stress conditions.

Structure of far-red allophycocyanin: stripped down and tuned up for low energy photosynthesis.

The paper solves the structure of a far-red allophycocyanin complex from cyanobacteria to understand adaptations for low-energy photosynthesis.

N-terminal region of PetD is essential for cytochrome b6f function and controls STT7 kinase activity via STT7-dependent feedback loop phosphorylation

The study shows that the N-terminal region of PetD is essential for b6f function and regulates STT7 kinase activity through a feedback loop involving phosphorylation at T4.

Antimycin A induces light hypersensitivity of photosystem II in the presence of QB-site binding herbicides

This study shows that antimycin A directly affects photosystem II and causes photoinhibition, suggesting it is not a specific inhibitor of PGR5-dependent CEF-PSI.

Differences between barley and maize revealed in limitations of photosystems I and II under high temperature and low air humidity.

This study compares photosystem I and II limitations in barley and maize under high temperature and low humidity, revealing species-specific responses to heat stress.