Light effects on plants

Pith cell responses to low red: far-red light in dicot stems

This study investigates how tomato and other dicot plants respond to low red:far-red light by analyzing pith cell changes and gene expression patterns, revealing conserved and species-specific mechanisms.

Annual Variability in Diffuse Ratio and Spectral Characteristics of Solar Radiation: Cloud Effects in a Temperate Monsoon Region

The paper analyzes solar radiation spectral characteristics and diffuse fraction in a temperate monsoon region to assess their impact on plant light signals and growth.

VRN2-PRC2 facilitates light-triggered repression of PIF signalling to coordinate growth in Arabidopsis

This paper shows VRN2-PRC2 represses PIF signaling in Arabidopsis under light to coordinate growth by setting a repressed chromatin state at PIF-regulated genes.

A tomato line hyposensitive to simulated proximity shade shows altered auxin-related 1 gene expression and improved fruit yield under high-density field conditions

The paper identifies a tomato genotype (IL2-2) that shows improved fruit yield under high-density conditions despite altered auxin-related gene expression in response to simulated shade.

WDL4 is a microtubule associated protein required for phytochrome B dependent thermomorphogenesis

This study identifies WDL4 as a microtubule-associated protein essential for PhyB-dependent thermomorphogenesis and photomorphogenesis in plants.

High-Precision Lighting for Plants: Laser Diodes Outperform LEDs in Photosynthesis and Plant Growth

This study compares red laser diodes (LDs) and LEDs for plant growth, finding LDs enhance photosynthesis and biomass in tobacco and Arabidopsis.

PHYTOCHROME INTERACTING FACTORS are required to coordinate microtubule dynamics and differential cell growth during Arabidopsis apical hook opening

The paper identifies PIF transcription factors as regulators of microtubule dynamics and differential cell growth during Arabidopsis apical hook opening.

Arbor function of TRANSPARENT TESTA GLABRA 1 and LIGHT REGULATED WD scaffold proteins in the Arabidopsis circadian oscillators includes transcriptional repression through PSEUDO RESPONSE REGULATORS

The paper identifies a continuous role of TLWD scaffold proteins in Arabidopsis circadian oscillators, showing their involvement in both transcriptional activation and repression through interactions with PRR family repressors.

Unequal genetic redundancies among MYC bHLH transcription factors underlie seedling photomorphogenesis in Arabidopsis

This study identifies the differential roles of MYC3 and MYC4 in seedling photomorphogenesis and their interaction with HY5 and COP1 in Arabidopsis.

The Characteristic Timescales of the Arabidopsis thaliana Metabolism and the Phenotypic Effects of Forcing Them

This study applies sub-circadian oscillatory light forcing to Arabidopsis thaliana, revealing characteristic timescales and significant phenotypic effects on growth and development.

Harnessing light heterogeneity to optimise controlled environment agriculture

This study uses light heterogeneity in vertical farms to identify optimal environmental conditions for crop yield and energy efficiency by analyzing light quality's impact on microgreens.

Detection of a hybrid PrPfr state in the dark reversion of abathy phytochrome indicates inter-dimer allostery.

The paper investigates dark reversion kinetics of PaBphP phytochrome, finding evidence for an intermediate PrPfr state and inter-dimer allostery.

Ethylene sensitivity assay for medicinal and fiber-type Cannabis seedlings reveals a triple-response-like phenotype

This study uses an ethephon-based assay to examine ethylene responses in Cannabis sativa seedlings, revealing a unique triple-response-like phenotype and conserved ethylene signaling pathways.

Early seedling development in dark conditions is directly controlled by plastids through the GUN1-dependent plastid retrograde pathway

This study shows that plastids directly control early dark growth in seedlings through the GUN1-dependent retrograde pathway, independent of mitochondria and photosynthesis.

The beginnings of light-dependent nuclear relocation in land plants

This study shows that light-dependent nuclear relocation in land plants evolved in the common ancestor of land plants and diverged during evolution, with similar but less stable responses observed in liverworts compared to Arabidopsis.

Cryo-EM structures of a bathy phytochrome histidine kinase reveal a unique light-dependent activation mechanism

The paper presents cryo-EM structures of PaBphP phytochrome in two states, revealing a unique light-dependent activation mechanism through structural changes.

Green Conversations: Harnessing Plant Communication to control growth light intensity.

The paper develops a real-time plant bio-feedback system to optimize light intensity, increasing yield and reducing energy use in controlled environment agriculture.

Manipulation of Photosensory and Circadian Signalling Restricts Developmental Plasticity in Arabidopsis

The paper restricts developmental plasticity in Arabidopsis by manipulating photosensory and circadian signaling, resulting in uniform growth and flowering time.

Hypocotyl Development in Arabidopsis and other Brassicaceae Displays Evidence of Photoperiodic Memory

The paper investigates photoperiodic memory in Arabidopsis and Brassicaceae, finding that hypocotyl elongation is influenced by past photoperiod exposure and involves phyB and ELF3, but not the circadian clock.

Photosynthetically active radiation is required for seedling growth promotion by volcanic dacitic tuff breccia (Azomite)

This study shows that photosynthetically active radiation is required for volcanic ash fertilizer to promote seedling growth, with red light and micronutrients playing a key role.

Signal Transduction in an Enzymatic Photoreceptor Revealed by Cryo-Electron Microscopy

The paper reports Cryo-EM structures of bacterial phytochromes in different light states, revealing insights into their signaling mechanisms.

PP2A Dephosphorylates Phytochrome-Interacting Factor 3 to Modulate Photomorphogenesis in Arabidopsis

This study identifies PP2A subunits that dephosphorylate PIF3, modulating photomorphogenesis in Arabidopsis by affecting hypocotyl length and gene expression under red light.

Arabidopsis NF-YCs interact with CRY2 and PIF4/5 to repress blue light-mediated hypocotyl growth

The paper identifies NF-YC proteins as interacting with CRY2 and PIF4/5 to repress blue light-induced hypocotyl elongation in Arabidopsis.

Highlighter: an optogenetic actuator for light-mediated, high resolution gene expression control in plants

The paper introduces Highlighter, a synthetic optogenetic system for precise light-mediated gene expression control in plants, demonstrating spatiotemporal regulation of gene expression and plant immunity.

Assessing combinatorial diversity of aureochrome bZIPs through genome-wide screening

This study assesses the combinatorial diversity of aureochrome bZIPs by analyzing dimerization partners and stability using bioinformatics and network science methods.

Transcriptome profiling of barley and tomato shoot and root meristems unravels physiological variations underlying photoperiodic sensitivity

This study compares transcriptome profiles of barley and tomato shoot and root meristems under short-day conditions to identify physiological differences in photoperiodic sensitivity.

Natural variation in PHY causes differential response to R/FR light following a latitudinal cline in Norway spruce

The paper identifies genetic variations in PHY and CRY genes associated with differential light response in Norway spruce across latitudes.

PHYTOCHROME INTERACTING FACTORs trigger environmentally responsive chromatin dynamics

The paper identifies a PIF-INO80 regulatory module that controls light quality-dependent H2A.Z dynamics in plants.

Large-scale Proteomic and Phosphoproteomic Analysis of Maize Seedling Leaves During De-etiolation

This study presents a quantitative proteomic and phosphoproteomic atlas of maize de-etiolation, identifying significant changes in phosphorylation levels and highlighting the prevalence of multi-phosphorylation.

A Synthetic Peptide Encoded by a Random DNA Sequence Inhibits Discrete Red Light Responses

A synthetic peptide from random DNA sequence expression inhibits specific red-light responses in Arabidopsis seedlings without affecting other red-light mediated processes.