ArticlePlant physiology2006
Identification of primary target genes of phytochrome signaling. Early transcriptional control during shade avoidance responses in Arabidopsis.
Article in Plant physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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Who cites it
74 citing papers in PubMed, 153 citations in OpenAlex.
- Rice adaptation to low-light stress: integrating morpho-physiology, biochemical plasticity, signalling networks and molecular breeding strategies.Plant cell reports · 2026Review
- A genome-wide association analysis identifies a key candidate gene controlling plant growth habit in chickpea.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Temporal and spatial frameworks supporting plant responses to vegetation proximity.Plant physiology · 2024Article
- What is going on inside of phytochrome B photobodies?The Plant cell · 2024Review
- Shade avoidance in the context of climate change.Plant physiology · 2023Article
- UB2/UB3/TSH4-anchored transcriptional networks regulate early maize inflorescence development in response to simulated shade.The Plant cell · 2023Article
- Regulation of Plant Photoresponses by Protein Kinase Activity of Phytochrome A.International journal of molecular sciences · 2023Review
- Improved chilling tolerance in glasshouse-grown potted sweet basil by end-of-production, short-duration supplementary far red light.Frontiers in plant science · 2023Article
- Review
- SUPPRESSOR OF PHYTOCHROME B-4 #3 reduces the expression of PIF-activated genes and increases expression of growth repressors to regulate hypocotyl elongation in short days.BMC plant biology · 2022Article
- Development and carotenoid synthesis in dark-grown carrot taproots require PHYTOCHROME RAPIDLY REGULATED1.Plant physiology · 2022Article
- Basic Helix-Loop-Helix (bHLH) Transcription Factors Regulate a Wide Range of Functions in Arabidopsis.International journal of molecular sciences · 2021Review
- Integration of light and hormone signaling pathways in the regulation of plant shade avoidance syndrome.aBIOTECH · 2021Review
- Article
- A Gas-and-Brake Mechanism of bHLH Proteins Modulates Shade Avoidance.Plant physiology · 2020Article
- A de novo transcriptome analysis revealed that photomorphogenic genes are required for carotenoid synthesis in the dark-grown carrot taproot.Molecular genetics and genomics : MGG · 2020Article
- The bHLH network underlying plant shade-avoidance.Physiologia plantarum · 2020Review
- Shade signals alter the expression of circadian clock genes in newly-formed bioenergy sorghum internodes.Plant direct · 2020Article
- Regulation of monocot and dicot plant development with constitutively active alleles of phytochrome B.Plant direct · 2020Article
- Progress of Research on the Regulatory Pathway of the Plant Shade-Avoidance Syndrome.Frontiers in plant science · 2020Review
14 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The phytochrome (phy) photoreceptors modulate plant development after perception of light. Upon illumination of etiolated seedlings, phys initiate a transcriptional cascade by directly transducing light signals to the promoters of genes encoding regulators of morphogenesis. In light-grown plants, however, little is known about the transcriptional cascade modulated by phys in response to changes in light. The phy entry points in this cascade are completely unknown. We are particularly interested in the shade avoidance syndrome (SAS). Here we describe a subset of six genes whose expression is rapidly modulated by phys during both deetiolation and SAS in Arabidopsis (Arabidopsis thaliana). Using cycloheximide, we provide evidence that four of these phy rapidly regulated (PAR) genes are direct targets of phy signaling during SAS, revealing these genes as upstream components of the transcriptional cascade. Promoter-beta-glucuronidase fusions confirmed that PAR genes are photoregulated at the transcriptional level. Analysis of gene expression in light signal transduction mutants showed that COP1 and DET1 (but not DET2 or HY5) play a role in modulating PAR expression in response to shade in light-grown seedlings. Moreover, genetic analyses showed that one of the genes identified as a direct target of phy signaling was phy-interacting factor 3-like-1 (PIL1). PIL1 has previously been implicated in SAS in response to transient shade, but we show here that it also plays a key role in response to long-term shade. The action of PIL1 was particularly apparent in a phyB background, suggesting an important negative role for PIL1 under dense vegetation canopies.
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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.