Light effects on plants

Integration of light quality signals regulates ABA abundance and stomatal movements during seedling establishment

This study shows that light quality signals regulate ABA abundance and stomatal movements in Arabidopsis seedlings, with low R:FR inhibiting stomatal opening via PIF4 and ABA, while UV-B promotes opening through UVR8 and phototropin.

Proximity proteomics reveals the molecular architecture of phytochrome B photobodies in Arabidopsis thaliana

The paper uses proximity proteomics to identify proteins associated with phyB photobodies in Arabidopsis thaliana, revealing HOP1's role in photomorphogenesis.

Multi-Omics Meta-Analysis Provides Insights into Reversible Phosphorylation During Arabidopsis Skotomorphogenesis

The paper integrates multi-omics data from Arabidopsis thaliana to identify phosphorylation events and kinases involved in skotomorphogenesis.

Toss GERALT into chloroplast to make it green: a new regulator of chloroplast biogenesis and chlorophyll biosynthesis

This study identifies GERALT as a key regulator of chloroplast biogenesis and chlorophyll biosynthesis in Arabidopsis, revealing its role in cotyledon greening and plant fitness.

PHYTOCHROME INTERACTING FACTOR 7 moderates the activity of phytochrome A in canopy shade conditions

The paper identifies PIF7 as a regulator of phyA function under canopy shade conditions, showing it suppresses phyA activity through nuclear accumulation and interaction with transport facilitators.

Mechanistic insight into the oligomerisation of Arabidopsis CRY1 and its inhibition by BIC1

This study reveals the molecular mechanism of Arabidopsis CRY1 activation and inhibition by BIC1 using time-resolved mass spectrometry and kinetic modeling.

TOC1 phosphorylation disproportionally enhances chromatin binding at rhythmic gene promoters

The paper shows TOC1 phosphorylation enhances chromatin binding at rhythmic gene promoters, specifically at CCA1, and is required for optimal repression of CCA1 but not LHY.

A nuclear pore complex component HOS1 mediates UV-B light-induced UVR8 nuclear localization for activating HY5 cascade in Arabidopsis

This study identifies HOS1 as a nuclear pore complex component that mediates UV-B-induced UVR8 nuclear import, enabling HY5 activation in Arabidopsis.

Antioxidant properties of dihydroxy B-ring flavonoids modulate circadian amplitude in Arabidopsis

This study shows dihydroxy B-ring flavonoids modulate circadian amplitude in Arabidopsis through antioxidant properties and chloroplast Ca2+ signaling.

BBX transcription factor evolution in the green plant lineage

This study investigates the evolutionary history of BBX transcription factors across green plants, identifying structural groups, domain dynamics, and lineage-specific innovations.

PIF4-mediated regulation of H2O2 homeostasis controls Arabidopsis seedling thermomorphogenesis

This study identifies PIF4 as a regulator of H2O2 homeostasis that controls hypocotyl elongation in Arabidopsis seedlings under high temperature.

Early Flowering 3 (ELF3) inhibits hypocotyl phototropism in light-grown Arabidopsis seedlings.

The paper identifies ELF3 as a key inhibitor of phototropic bending in light-grown Arabidopsis seedlings and shows its circadian regulation and opposite effect in Brachypodium distachyon.

Genetic architecture of a light-temperature coincidence detector

The paper identifies the genetic mechanisms by which PHOT2 and CAMTA2 integrate light and temperature signals to control flowering in plants.

Phototropin localization and interactions regulate photophysiological processes in Chlamydomonas reinhardtii

This study identifies phototropin interacting partners and regulatory mechanisms in Chlamydomonas reinhardtii, showing IFT-mediated trafficking and interactions with photoreceptors and signaling proteins.

Threshold-dependent negative autoregulation of PIF4 gene expression optimizes growth and fitness in Arabidopsis

This study shows that PIF4 gene expression is negatively autoregulated, with a threshold-dependent mechanism that optimizes growth and fitness in Arabidopsis.

ZmCRY1s interact with GL2 in a blue light dependent manner to regulate epidermal wax composition in Zea mays

This study investigates the role of ZmCRY1s in mediating blue light regulation of epidermal wax composition and UV-B stress tolerance in maize.

Transcriptional response to warm temperatures is confounded by organ-specificity

The paper shows that whole seedling transcriptomic data in Arabidopsis thaliana is confounded by organ-specific responses to warmth, with ~70% of DEGs not being organ-specific.

A Novel Multilayer Cultivation Strategy Improves Light Utilization and Fruit Quality in Plant Factories for Tomato Production

This study introduces an S-shaped cultivation method for tomatoes in plant factories, improving light use efficiency and fruit quality compared to conventional I-shaped methods.

Blue light increases stomatal conductance and photosynthesis in Agave hybrid

This study shows blue light increases stomatal conductance, photosynthesis, and water use efficiency in Agave hybrid during the afternoon, similar to C3/C4 plants, but not in the morning.

Photosynthetic adjustments maintain lettuce growth under dynamically changing lighting in controlled indoor farming setups

This study shows dynamic lighting supports lettuce growth under varying light intensities in different indoor farming setups, enabling cost-effective electricity use.

Mechanism of nucleus-chloroplast communication by alternative promoter usage and stromules to establish photomorphogenesis in Arabidopsis

This study identifies light-regulated alternative promoter usage of the NCP gene and stromule-mediated retrotranslocation of its long isoform as mechanisms controlling photomorphogenesis in Arabidopsis.

Cotyledon opening during seedling deetiolation is determined by ABA-mediated splicing regulation

This study shows ABA regulates cotyledon opening during seedling deetiolation through splicing factor RS40 and RS41, with light reversing ABA's repressive effect.

Arabidopsis thaliana Phytochrome A Sensory Properties in Canopy Shade

This study quantifies phyA dynamics in Arabidopsis under canopy shade conditions and identifies its role in promoting seedling adaptation to moderate shade.

Protection of photosynthesis by UVR8 and cryptochromes in Arabidopsis under blue and UV radiation

This study investigates the roles of UVR8 and cryptochromes in protecting photosynthesis in Arabidopsis under UV-B, UV-A1, and blue light, showing their involvement in maintaining photosynthetic capacity and preventing photodamage.

A PIF- and GUN1-regulated switch in cell axis growth drives cotyledon expansion through tissue-specific cell expansion and division

This study identifies a light-induced switch in cotyledon growth direction regulated by PIFs and phytochromes, with GUN1-mediated plastid signals counteracting expansion when chloroplasts are impaired.

Engineering NIR-Sighted Bacteria

This study uses rhizobial bathy-phytochromes to create synthetic two-component systems in bacteria that respond to near-infrared light for precise gene expression control.

Loss-of-Function RUP-Variants Influence Ubiquitin-Proteasome System and Enhance Carotenoid and Folate Levels in Tomato

This study shows that loss-of-function RUP variants in tomato enhance carotenoid and folate levels while affecting the ubiquitin-proteasome system and metabolic homeostasis during fruit ripening.

Blue Light Sonata: Dynamic variation of red:blue ratio during the photoperiod differentially affects leaf photosynthesis, pigments, and growth in lettuce

This study shows that dynamic blue light reduction during specific photoperiod phases improves lettuce growth and nutritional quality without compromising photosynthesis.

Episodic Positive Selection Signatures in Arabidopsis CONSTANS-like Genes COL3 and COL5 Indicating Adaptive Evolution in Red-Light Signaling Pathways

This study identifies episodic positive selection in Arabidopsis COL3 and COL5 genes, showing adaptive evolution in red-light signaling pathways through specific amino acid substitutions.

Sensitivity to photoperiod is a complex trait in Camelina sativa

The paper assesses photoperiod sensitivity in Camelina sativa accessions, finding wide variation and complex genetic underpinnings.