ArticleThe Plant cell2023
MYB112 connects light and circadian clock signals to promote hypocotyl elongation in Arabidopsis.
Article in The Plant cell, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 28 citations in OpenAlex.
- Light Intensity and Wavelength Modulate Antioxidant Secondary Metabolites in Embryonic Axis of Chickpea Sprouts.Foods (Basel, Switzerland) · 2026Article
- Identification of circadian-regulated genes for enhancing acidic soil tolerance in rice through integrative transcriptomic and systems analysis.Scientific reports · 2026Article
- Haplotype-Resolved Genome Assembly and Population Genomics Reveal Evolutionary History and Agronomic Traits of Mulberry.Plant biotechnology journal · 2026Article
- Loss-of-function of VrMYB104 in Mungbean hampers growth and multiple adaptive responses under waterlogging stress.Plant cell reports · 2025Article
- Identification and analysis of VOCs released by Rhodococcus ruber GXMZU2400 to promote plant growth and inhibit pathogen growth.BMC plant biology · 2025Article
- A chromosome-levelActa pharmaceutica Sinica. B · 2025Article
- Transcriptome sequencing revealed the regulation of stem internode length associated with mechanical harvesting in three tea varieties.Frontiers in plant science · 2025Article
- Single-cell RNA sequencing of shoot apex reveals the mechanism of cyclin regulating cell division via auxin signaling pathway inFrontiers in plant science · 2025Article
- Article
- Sorbitol mediates age-dependent changes in apple plant growth strategy through gibberellin signaling.Horticulture research · 2024Article
- QTL Mapping and Data Mining to Identify Genes Associated with Soybean Epicotyl Length Using Cultivated Soybean and Wild Soybean.International journal of molecular sciences · 2024Article
- Physiological and Molecular Response ofPlants (Basel, Switzerland) · 2024Article
- Biochemical and Transcriptome Analyses Reveal a Stronger Capacity for Photosynthate Accumulation in Low-Tillering Rice Varieties.International journal of molecular sciences · 2024Article
- Differential Response of MYB Transcription Factor Gene Transcripts to Circadian Rhythm in Tea Plants (International journal of molecular sciences · 2024Article
- Light signaling as cellular integrator of multiple environmental cues in plants.Physiology and molecular biology of plants : an international journal of functional plant biology · 2023Review
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Authors and funding
9 authors at 5 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Ambient light and the endogenous circadian clock play key roles in regulating Arabidopsis (Arabidopsis thaliana) seedling photomorphogenesis. PHYTOCHROME-INTERACTING FACTOR 4 (PIF4) acts downstream of both light and the circadian clock to promote hypocotyl elongation. Several members of the R2R3-MYB transcription factor (TF) family, the most common type of MYB TF family in Arabidopsis, have been shown to be involved in regulating photomorphogenesis. Nonetheless, whether R2R3-MYB TFs are involved in connecting the light and clock signaling pathways during seedling photomorphogenesis remains unknown. Here, we report that MYB112, a member of the R2R3-MYB family, acts as a negative regulator of seedling photomorphogenesis in Arabidopsis. The light signal promotes the transcription and protein accumulation of MYB112. myb112 mutants exhibit short hypocotyls in both constant light and diurnal cycles. MYB112 physically interacts with PIF4 to enhance the transcription of PIF4 target genes involved in the auxin pathway, including YUCCA8 (YUC8), INDOLE-3-ACETIC ACID INDUCIBLE 19 (IAA19), and IAA29. Furthermore, MYB112 directly binds to the promoter of LUX ARRHYTHMO (LUX), the central component of clock oscillators, to repress its expression mainly in the afternoon and relieve LUX-inhibited expression of PIF4. Genetic evidence confirms that LUX acts downstream of MYB112 in regulating hypocotyl elongation. Thus, the enhanced transcript accumulation and transcriptional activation activity of PIF4 by MYB112 additively promotes the expression of auxin-related genes, thereby increasing auxin synthesis and signaling and fine-tuning hypocotyl growth under diurnal cycles.
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