ArticleThe Plant cell2016
Epidermal Phytochrome B Inhibits Hypocotyl Negative Gravitropism Non-Cell-Autonomously.
Article in The Plant cell, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
25 citing papers in PubMed, 51 citations in OpenAlex.
- A PIF-regulated switch in cell axis growth drives cotyledon expansion through tissue-specific cell expansion and division.The Plant journal : for cell and molecular biology · 2025Article
- PIF transcription factors-versatile plant epigenome landscapers.Frontiers in epigenetics and epigenomics · 2024Review
- Protein S-acylation controls the subcellular localization and biological activity of PHYTOCHROME KINASE SUBSTRATE.The Plant cell · 2023Article
- Deciphering Novel Transcriptional Regulators of Soybean Hypocotyl Elongation Based on Gene Co-expression Network Analysis.Frontiers in plant science · 2022Article
- Guard cells control hypocotyl elongation through HXK1, HY5, and PIF4.Communications biology · 2021Article
- Review
- Improving the Predictive Value of Phytochrome Photoequilibrium: Consideration of Spectral Distortion Within a Leaf.Frontiers in plant science · 2021Article
- Local HY5 Activity Mediates Hypocotyl Growth and Shoot-to-Root Communication.Plant communications · 2020Article
- Transcriptomic network analyses shed light on the regulation of cuticle development in maize leaves.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- The epidermis coordinates thermoresponsive growth through the phyB-PIF4-auxin pathway.Nature communications · 2020Article
- PHYTOCHROME INTERACTING FACTOR8 Inhibits Phytochrome A-Mediated Far-Red Light Responses in Arabidopsis.The Plant cell · 2020Article
- Light-Mediated Signaling and Metabolic Changes Coordinate Stomatal Opening and Closure.Frontiers in plant science · 2020Review
- Molecular mechanisms underlying phytochrome-controlled morphogenesis in plants.Nature communications · 2019Review
- Plant photoreceptors: Multi-functional sensory proteins and their signaling networks.Seminars in cell & developmental biology · 2019Review
- Blue Light Regulates Secondary Cell Wall Thickening via MYC2/MYC4 Activation of theThe Plant cell · 2018Article
- Auxin Contributes to the Intraorgan Regulation of Gene Expression in Response to Shade.Plant physiology · 2018Article
- A Spotlight on Photobiology.Plant physiology · 2018Article
- Seedling Establishment: A Dimmer Switch-Regulated Process between Dark and Light Signaling.Plant physiology · 2018Review
- Phytochromes and Phytochrome Interacting Factors.Plant physiology · 2018Review
- Coordinated Regulation of Hypocotyl Cell Elongation by Light and Ethylene through a Microtubule Destabilizing Protein.Plant physiology · 2018Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Seedling hypocotyls display negative gravitropism in the dark but agravitropism in the light. The Arabidopsis thaliana pif quadruple mutant (pifQ), which lacks four PHYTOCHROME-INTERACTING FACTORS (PIFs), is agravitropic in the dark. Endodermis-specific expression of PIF1 rescues gravitropism in pifQ mutant seedlings. Since phytochromes induce light responses by inhibiting PIFs and the COP1-SPA ubiquitin E3 ligase complex in the nucleus, we asked whether phyB can cell autonomously inhibit hypocotyl negative gravitropism in the endodermis. We found that while epidermis-specific expression of PHYB rescues hypocotyl negative gravitropism and all other phyB mutant phenotypes, endodermis-specific expression of PHYB does not. Epidermal phyB induces the phosphorylation and degradation of endodermal PIFs in response to red light. This induces a global gene expression pattern similar to that induced by red light treatment of seedlings expressing PHYB under the control of its own endogenous promoter. Our results imply that epidermal phyB generates an unidentified mobile signal that travels to the endodermis where it promotes PIF degradation and inhibits hypocotyl negative gravitropism.
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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.