ArticleThe Plant cell2009
Obligate heterodimerization of Arabidopsis phytochromes C and E and interaction with the PIF3 basic helix-loop-helix transcription factor.
Article in The Plant cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.
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Who cites it
60 citing papers in PubMed, 100 citations in OpenAlex.
- MdPHYB2-MdPIF1 Module Regulates Transcription Factors to Mediate Light-Dependent ALA-Induced Apple Anthocyanin Biosynthesis.Plant, cell & environment · 2026Article
- Transgenic phytochrome D cooperates with phytochrome B to promote photomorphogenesis at low temperatures.Plant cell reports · 2026Article
- The discovery of twilight length sensing in plants and its implications for models of plant photoperiodism.The New phytologist · 2026Review
- Phytochrome C and Low Temperature Promote the Protein Accumulation and Red-Light Signaling of Phytochrome D.Plant & cell physiology · 2024Article
- Photoreception and signaling in bacterial phytochrome revealed by single-particle cryo-EM.Science advances · 2024Article
- A cytosol-tethered YHB variant of phytochrome B retains photomorphogenic signaling activity.Plant molecular biology · 2024Article
- Narrowing down a major QTL region revealsBreeding science · 2024Article
- Article
- Nuclear dynamics: Formation of bodies and trafficking in plant nuclei.Frontiers in plant science · 2022Review
- Light-regulated pre-mRNA splicing in plants.Current opinion in plant biology · 2021Review
- Phytochrome Signaling Networks.Annual review of plant biology · 2021Review
- Basic Protein Modules Combining Abscisic Acid and Light Signaling inFrontiers in plant science · 2021Review
- CRISPR/Cas9-mediated knockout and overexpression studies reveal a role of maize phytochrome C in regulating flowering time and plant height.Plant biotechnology journal · 2020Article
- An Updated Overview on the Regulation of Seed Germination.Plants (Basel, Switzerland) · 2020Review
- Regulation of monocot and dicot plant development with constitutively active alleles of phytochrome B.Plant direct · 2020Article
- Light Perception: A Matter of Time.Molecular plant · 2020Review
- Phytochrome evolution in 3D: deletion, duplication, and diversification.The New phytologist · 2020Review
- Molecular mechanisms underlying phytochrome-controlled morphogenesis in plants.Nature communications · 2019Review
- Light on the cell cycle of the non-photosynthetic bacterium Ramlibacter tataouinensis.Scientific reports · 2019Article
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6 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Phytochromes are dimeric chromoproteins that regulate plant responses to red (R) and far-red (FR) light. The Arabidopsis thaliana genome encodes five phytochrome apoproteins: type I phyA mediates responses to FR, and type II phyB-phyE mediate shade avoidance and classical R/FR-reversible responses. In this study, we describe the complete in vivo complement of homodimeric and heterodimeric type II phytochromes. Unexpectedly, phyC and phyE do not homodimerize and are present in seedlings only as heterodimers with phyB and phyD. Roles in light regulation of hypocotyl length, leaf area, and flowering time are demonstrated for heterodimeric phytochromes containing phyC or phyE. Heterodimers of phyC and chromophoreless phyB are inactive, indicating that phyC subunits require spectrally intact dimer partners to be active themselves. Consistent with the obligate heterodimerization of phyC and phyE, phyC is made unstable by removal of its phyB binding partner, and overexpression of phyE results in accumulation of phyE monomers. Following a pulse of red light, phyA, phyB, phyC, and phyD interact in vivo with the PHYTOCHROME INTERACTING FACTOR3 basic helix-loop-helix transcription factor, and this interaction is FR reversible. Therefore, most or all of the type I and type II phytochromes, including heterodimeric forms, appear to function through PIF-mediated pathways. These findings link an unanticipated diversity of plant R/FR photoreceptor structures to established phytochrome signaling mechanisms.
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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.