ArticleNature communications2019
Daytime temperature is sensed by phytochrome B in Arabidopsis through a transcriptional activator HEMERA.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 1 of them a synthesis that pooled it.
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Who cites it
83 citing papers in PubMed, 1 synthesis or guideline pooled it, 168 citations in OpenAlex.
- Abiotic Stress in Crop Production.International journal of molecular sciences · 2023Pooled it
- Photoreceptors as central hubs of developmental plasticity and environmental adaptation.Molecules and cells · 2026Review
- Antagonistic regulation of PIF4 and HY5 activity by BBX28 regulates thermomorphogenesis.Science advances · 2026Article
- The transcription elongation factor IWS1 promotes thermomorphogenesis by integrating the brassinosteroid and gibberellin pathways in Arabidopsis.Plant communications · 2026Article
- The chromatin reader MBD4 regulates temperature- and flowering-responsive transcription by recognizing histone arginine methylation.Plant communications · 2026Article
- Twenty-five years of photobodies: formation, composition, and the 2-compartment logic of phytochrome B signaling.Plant physiology · 2026Review
- Phytochrome B sets condensate number through graded nucleator states and seeding-site efficacy.Nature communications · 2026Article
- Oligomerization-competent PIF4 drives thermomorphogenesis through functional redundancy in transactivation and DNA binding.Nature communications · 2026Article
- CUL3Science advances · 2026Article
- Emerging Mechanisms of Plant Responses to Abiotic Stress.Plants (Basel, Switzerland) · 2025Review
- PIF4-mediated thermomorphogenesis relies on its oligomerization ability, not DNA-binding or transactivation activity.Research square · 2025Article
- Threshold-dependent negative autoregulation of PIF4 gene expression optimizes growth and fitness in Arabidopsis.PLoS genetics · 2025Article
- BBX24 and BBX25 antagonize the function of thermosensor ELF3 to promote PIF4-mediated thermomorphogenesis in Arabidopsis.Plant communications · 2025Article
- A multisensor high-temperature signaling framework for triggering daytime thermomorphogenesis in Arabidopsis.Nature communications · 2025Article
- Evaporative cooling signals for wound healing in plants.bioRxiv : the preprint server for biology · 2025Article
- Historic rewiring of grass flowering time pathways and implications for crop improvement under climate change.The New phytologist · 2025Review
- UV-B increases active phytochrome B to suppress thermomorphogenesis and enhance UV-B stress tolerance at high temperatures.Plant communications · 2025Article
- Genome-Wide Identification of GmPIF Family and Regulatory Pathway Analysis of GmPIF3g in Different Temperature Environments.International journal of molecular sciences · 2025Article
- Cloning and high temperature tolerance analysis of the thermal response related geneFrontiers in plant science · 2025Article
- Contrasting interactions between photon spectra and temperature in cold-sensitive basil and cold-tolerant lettuce.Frontiers in plant science · 2025Article
23 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors at 1 institution in 2 countries.
Funding
Abstract
Ambient temperature sensing by phytochrome B (PHYB) in Arabidopsis is thought to operate mainly at night. Here we show that PHYB plays an equally critical role in temperature sensing during the daytime. In daytime thermosensing, PHYB signals primarily through the temperature-responsive transcriptional regulator PIF4, which requires the transcriptional activator HEMERA (HMR). HMR does not regulate PIF4 transcription, instead, it interacts directly with PIF4, to activate the thermoresponsive growth-relevant genes and promote warm-temperature-dependent PIF4 accumulation. A missense allele hmr-22, which carries a loss-of-function D516N mutation in HMR's transcriptional activation domain, fails to induce the thermoresponsive genes and PIF4 accumulation. Both defects of hmr-22 could be rescued by expressing a HMR22 mutant protein fused with the transcriptional activation domain of VP16, suggesting a causal relationship between HMR-mediated activation of PIF4 target-genes and PIF4 accumulation. Together, this study reveals a daytime PHYB-mediated thermosensing mechanism, in which HMR acts as a necessary activator for PIF4-dependent induction of temperature-responsive genes and PIF4 accumulation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.