ArticleFrontiers in plant science2016
Phytochrome A Mediates Blue-Light Enhancement of Second-Positive Phototropism in Arabidopsis.
Article in Frontiers in plant science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
18 citing papers in PubMed.
- Reversible phosphorylation of NPH3/RPT2-like proteins regulates phototropin receptor signaling.The Plant cell · 2026Article
- Xanthomonas campestris pv. campestris regulates virulence mechanisms by sensing blue light.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2025Article
- Article
- Influence of aPlants (Basel, Switzerland) · 2023Article
- Phototropin phosphorylation of ROOT PHOTOTROPISM 2 and its role in mediating phototropism, leaf positioning, and chloroplast accumulation movement in Arabidopsis.The Plant journal : for cell and molecular biology · 2023Article
- Two distinct light-induced reactions are needed to promote germination in spores ofFrontiers in plant science · 2023Article
- Phytochrome A in plants comprises two structurally and functionally distinct populations - water-soluble phyA' and amphiphilic phyA″.Biophysical reviews · 2022Review
- Article
- The Power of Far-Red Light at Night: Photomorphogenic, Physiological, and Yield Response in Pepper During Dynamic 24 Hour Lighting.Frontiers in plant science · 2022Article
- Article
- Article
- Engineering the phototropin photocycle improves photoreceptor performance and plant biomass production.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Deetiolation Enhances Phototropism by Modulating NON-PHOTOTROPIC HYPOCOTYL3 Phosphorylation Status.Plant physiology · 2019Article
- A chemical genetic approach to engineer phototropin kinases for substrate labeling.The Journal of biological chemistry · 2018Article
- Functional characterization of a constitutively active kinase variant ofThe Journal of biological chemistry · 2017Article
- Functional characterization of Arabidopsis phototropin 1 in the hypocotyl apex.The Plant journal : for cell and molecular biology · 2016Article
- A novel blue-light phototropic response is revealed in roots of Arabidopsis thaliana in microgravity.Planta · 2016Article
- Blue Light-Induced Intracellular Movement of Phototropins: Functional Relevance or Red Herring?Frontiers in plant science · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Hypocotyl phototropism of etiolated Arabidopsis seedlings is primarily mediated by the blue-light receptor kinase phototropin 1 (phot1). Phot1-mediated curvature to continuous unilateral blue light irradiation (0.5 μmol m(-2) s(-1)) is enhanced by overhead pre-treatment with red light (20 μmol m(-2) s(-1) for 15 min) through the action of phytochrome (phyA). Here, we show that pre-treatment with blue light is equally as effective in eliciting phototropic enhancement and is dependent on phyA. Although blue light pre-treatment was sufficient to activate early phot1 signaling events, phot1 autophosphorylation in vivo was not found to be saturated, as assessed by subsequently measuring phot1 kinase activity in vitro. However, enhancement effects by red and blue light pre-treatment were not observed at higher intensities of phototropic stimulation (10 μmol m(-2) s(-1)). Phototropic enhancement by red and blue light pre-treatments to 0.5 μmol m(-2) s(-1) unilateral blue light irradiation was also lacking in transgenic Arabidopsis where PHOT1 expression was restricted to the epidermis. Together, these findings indicate that phyA-mediated effects on phot1 signaling are restricted to low intensities of phototropic stimulation and originate from tissues other than the epidermis.
Indexed as
Identifiers
What OpenQuestion holds
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.