ArticleThe arabidopsis book2011
Phytochrome signaling mechanisms.
Article in The arabidopsis book, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 198 papers.
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Who cites it
198 citing papers in PubMed, 557 citations in OpenAlex.
- BR-ENHANCED EXPRESSION 1/2/3 fine-tune plant photomorphogenesis by regulating the phyA/B-SPA1 cascade.The Plant cell · 2026Article
- Extremely low light promotes adventitious shoot regeneration via RpPHYA/RpHYH-antagonized auxin biosynthesis and transport through dual regulation ofHorticulture research · 2026Article
- The signaling mechanism of phyA involves direct interaction with ATG8 to regulate HY5 autophagic degradation under nutrient starvation.The New phytologist · 2026Article
- Nucleoporin Nup96 promotes plant photomorphogenesis by facilitating phyB photobody formation and HOS1-mediated PIF5 degradation in Arabidopsis.Plant communications · 2026Article
- ThePlants (Basel, Switzerland) · 2026Review
- Functional conservation and diversity of phytochrome B and its potential applications in crop improvement.Plant communications · 2026Review
- Integrated phylogenomic and transcriptomic analyses reveal GhTZP3 as a key gene regulating flowering time and undergoing artificial selection in upland cotton (Gossypium hirsutum).Functional & integrative genomics · 2026Article
- Mechanisms underlying green flower formation.Horticulture research · 2026Article
- Temperature Dominates Light in Regulating Lycopene During a Critical Period in Postharvest Tomato Fruit.International journal of molecular sciences · 2026Article
- Red-light-responsive metabolome reveals the crucial role of phytochrome A- and B-dependent secondary metabolism in Arabidopsis seed germination.Journal of experimental botany · 2026Article
- Phytochrome B integrates jasmonic acid and warm temperature signaling pathways to regulate cotyledon chloroplast development.Nature communications · 2026Article
- Red Light Triggers Lesion Formation in thePlants (Basel, Switzerland) · 2026Article
- Article
- Adaptive strategies of Egyptian crowfoot grass (Dactyloctenium aegyptium (L.) Willd): Germination responses to environmental factors.PloS one · 2026Article
- Assessing the Role of PPKs in Phosphorylating Phytochrome A Using the Protoplast Transient Expression System.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Genotypic difference in yield response to far-red light in dwarf tomato: explained by fruit sink and source strength and predicted by seedlings' height plasticity.Frontiers in plant science · 2026Article
- Interaction of OsCSN2 with OsCULs Under Red and Far-Red Light Regulates Stem and Coleoptile Growth in Rice.Plants (Basel, Switzerland) · 2025Article
- PHYB and PIF3 repress OLE4 expression to regulate hypocotyl length and ABA signaling in Arabidopsis.BMC plant biology · 2025Article
- The role of sucrose in phosphate starvation response: transcriptomic and physiological insights in Arabidopsis Thaliana.BMC plant biology · 2025Article
- Phytochrome B stabilizes the KNOX transcription factor BP/KNAT1 to promote light-initiated seed germination in Arabidopsis thaliana.Plant communications · 2025Article
138 more citing papers are in PubMed but not listed here.
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Phytochromes are red (R)/far-red (FR) light photoreceptors that play fundamental roles in photoperception of the light environment and the subsequent adaptation of plant growth and development. There are five distinct phytochromes in Arabidopsis thaliana, designated phytochrome A (phyA) to phyE. phyA is light-labile and is the primary photoreceptor responsible for mediating photomorphogenic responses in FR light, whereas phyB-phyE are light stable, and phyB is the predominant phytochrome regulating de-etiolation responses in R light. Phytochromes are synthesized in the cytosol in their inactive Pr form. Upon light irradiation, phytochromes are converted to the biologically active Pfr form, and translocate into the nucleus. phyB can enter the nucleus by itself in response to R light, whereas phyA nuclear import depends on two small plant-specific proteins FAR-RED ELONGATED HYPOCOTYL 1 (FHY1) and FHY1-LIKE (FHL). Phytochromes may function as light-regulated serine/threonine kinases, and can phosphorylate several substrates, including themselves in vitro. Phytochromes are phosphoproteins, and can be dephosphorylated by a few protein phosphatases. Photoactivated phytochromes rapidly change the expression of light-responsive genes by repressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), an E3 ubiquitin ligase targeting several photomorphogenesis-promoting transcription factors for degradation, and by inducing rapid phosphorylation and degradation of Phytochrome-Interacting Factors (PIFs), a group of bHLH transcription factors repressing photomorphogenesis. Phytochromes are targeted by COP1 for degradation via the ubiquitin/26S proteasome pathway.
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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.