ArticleThe Plant cell2003
PP7 is a positive regulator of blue light signaling in Arabidopsis.
Article in The Plant cell, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 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
36 citing papers in PubMed, 102 citations in OpenAlex.
- Selection of heat stress-tolerant cultivars from radish and analysis of gene expression under high-temperature.Genes & genomics · 2026Article
- Circadian and environmental signal integration in a natural population ofProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Characterizing the circadian connectome of Ocimum tenuiflorum using an integrated network theoretic framework.Scientific reports · 2023Article
- Identification of genetic loci associated with five agronomic traits in alfalfa using multi-environment trials.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Chromosome-level genome assembly of the diploid blueberry Vaccinium darrowii provides insights into its subtropical adaptation and cuticle synthesis.Plant communications · 2022Article
- Comparative DNA Methylome of Phytoplasma Associated Retrograde Metamorphosis in Sesame (Biology · 2022Article
- Phosphorylation of BIK1 is critical for interaction with downstream signaling components.Genes & genomics · 2021Article
- Article
- Induction of TOC and TIC genes during photomorphogenesis is mediated primarily by cryptochrome 1 in Arabidopsis.Scientific reports · 2020Article
- Extrachloroplastic PP7L Functions in Chloroplast Development and Abiotic Stress Tolerance.Plant physiology · 2019Article
- PLATINUM SENSITIVE 2 LIKE impacts growth, root morphology, seed set, and stress responses.PloS one · 2017Article
- Article
- Arabidopsis VQ MOTIF-CONTAINING PROTEIN29 represses seedling deetiolation by interacting with PHYTOCHROME-INTERACTING FACTOR1.Plant physiology · 2014Article
- Arabidopsis casein kinase1 proteins CK1.3 and CK1.4 phosphorylate cryptochrome2 to regulate blue light signaling.The Plant cell · 2013Article
- Article
- The changes of GA level and signaling are involved in the regulation of mesocotyl elongation during blue light mediated de-etiolation in Sorghum bicolor.Molecular biology reports · 2012Article
- Hypersensitive to red and blue 1 and its modification by protein phosphatase 7 are implicated in the control of Arabidopsis stomatal aperture.PLoS genetics · 2012Article
- The Cryptochrome Blue Light Receptors.The arabidopsis book · 2010Article
- SHORT HYPOCOTYL UNDER BLUE1 truncations and mutations alter its association with a signaling protein complex in Arabidopsis.The Plant cell · 2010Article
- PPEF/PP7 protein Ser/Thr phosphatases.Cellular and molecular life sciences : CMLS · 2009Review
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The cryptochrome blue light photoreceptors mediate various photomorphogenic responses in plants, including hypocotyl elongation, cotyledon expansion, and control of flowering time. The molecular mechanism of cryptochrome function in Arabidopsis is becoming increasingly clear, with recent studies showing that both CRY1 and CRY2 are localized in the nucleus and that CRY2 is regulated by blue light-dependent phosphorylation. Despite these advances, no positive cryptochrome signaling component has been identified to date. Here, we demonstrate that a novel Ser/Thr protein phosphatase (AtPP7) with high sequence similarity to the Drosophila retinal degeneration C protein phosphatase acts as an intermediate in blue light signaling. Transgenic Arabidopsis seedlings with reduced AtPP7 expression levels exhibit loss of hypocotyl growth inhibition and display limited cotyledon expansion in response to blue light irradiation. These effects are as striking as those seen in hy4 mutant seedlings, which are deficient in CRY1. We further demonstrate that AtPP7 transcript levels are not rate limiting and that AtPP7 probably acts downstream of cryptochrome in the nucleus, ensuring signal flux through the pathway. Based on our findings and recent data regarding cryptochrome action, we propose that AtPP7 acts as a positive regulator of cryptochrome signaling in Arabidopsis.
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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.