ArticleNature communications2018
A phosphorylation switch turns a positive regulator of phototropism into an inhibitor of the process.
Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 28 citations in OpenAlex.
- Article
- Hydrogen peroxide mediates high-intensity blue light-induced hypocotyl phototropism of cotton seedlings.Stress biology · 2023Article
- Protein S-acylation controls the subcellular localization and biological activity of PHYTOCHROME KINASE SUBSTRATE.The Plant cell · 2023Article
- Shade suppresses wound-induced leaf repositioning through a mechanism involving PHYTOCHROME KINASE SUBSTRATE (PKS) genes.PLoS genetics · 2022Article
- Regulation of plant phototropic growth by NPH3/RPT2-like substrate phosphorylation and 14-3-3 binding.Nature communications · 2021Article
- Light-triggered and phosphorylation-dependent 14-3-3 association with NON-PHOTOTROPIC HYPOCOTYL 3 is required for hypocotyl phototropism.Nature communications · 2021Article
- Metabolic control of histone demethylase activity involved in plant response to high temperature.Plant physiology · 2021Article
- CIPK23 regulates blue light-dependent stomatal opening in Arabidopsis thaliana.The Plant journal : for cell and molecular biology · 2020Article
- An ATP-Binding Cassette Transporter, ABCB19, Regulates Leaf Position and Morphology during Phototropin1-Mediated Blue Light Responses.Plant physiology · 2020Article
- Article
- Low Blue Light Enhances Phototropism by Releasing Cryptochrome1-Mediated Inhibition ofPlant physiology · 2020Article
- The continuing arc toward phototropic enlightenment.Journal of experimental botany · 2020Article
- A light-dependent molecular link between competition cues and defence responses in plants.Nature plants · 2020Article
- Regulation of Early Plant Development by Red and Blue Light: A Comparative Analysis BetweenFrontiers in plant science · 2020Article
- Deetiolation Enhances Phototropism by Modulating NON-PHOTOTROPIC HYPOCOTYL3 Phosphorylation Status.Plant physiology · 2019Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Phototropins are light-activated protein kinases, which contribute to photosynthesis optimization both through enhancement of photon absorption when light is limiting and avoidance responses in high light. This duality is in part endowed by the presence of phototropins with different photosensitivity (phot1 and phot2). Here we show that phot1, which senses low light to promote positive phototropism (growth towards the light), also limits the response in high light. This response depends in part on phot1-mediated phosphorylation of Phytochrome Kinase Substrate 4 (PKS4). This light-regulated phosphorylation switch changes PKS4 from a phototropism enhancer in low light to a factor limiting the process in high light. In such conditions phot1 and PKS4 phosphorylation prevent phototropic responses to shallow light gradients and limit phototropism in a natural high light environment. Hence, by modifying PKS4 activity in high light the phot1-PKS4 regulon enables appropriate physiological adaptations over a range of light intensities.
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Registered trials
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