ArticleJournal of integrative plant biology2020
Cryptochrome-mediated hypocotyl phototropism was regulated antagonistically by gibberellic acid and sucrose in Arabidopsis.
Article in Journal of integrative plant biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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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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Who cites it
11 citing papers in PubMed, 28 citations in OpenAlex.
- Genome-wide characterization of the wheat cryptochrome/photolyase family identifies TaCRY1b as a lamina-joint-associated protein interacting with TaLG2 and TaLG2L.Frontiers in plant science · 2026Article
- 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
- Article
- Hydrogen peroxide mediates high-intensity blue light-induced hypocotyl phototropism of cotton seedlings.Stress biology · 2023Article
- The action of enhancing weak light capture via phototropic growth and chloroplast movement in plants.Stress biology · 2022Review
- Characterization of Cry2 genes (CRY2a and CRY2b) of B. napus and comparative analysis of BnCRY1 and BnCRY2a in regulating seedling photomorphogenesis.Plant molecular biology · 2022Article
- A PSTAIRE-type cyclin-dependent kinase controls light responses in land plants.Science advances · 2022Article
- Gibberellin regulates UV-B-induced hypocotyl growth inhibition inPlant signaling & behavior · 2021Article
- Phototropin 1 Mediates High-Intensity Blue Light-Induced Chloroplast Accumulation Response in a Root Phototropism 2-Dependent Manner inFrontiers in plant science · 2021Article
- Article
- Photoexcited Cryptochrome2 Interacts Directly with TOE1 and TOE2 in Flowering Regulation.Plant physiology · 2020Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Both phototropins (phot1 and phot2) and cryptochromes (cry1 and cry2) were proven as the Arabidopsis thaliana blue light receptors. Phototropins predominately function in photomovement, and cryptochromes play a role in photomorphogenesis. Although cryptochromes have been proposed to serve as positive modulators of phototropic responses, the underlying mechanism remains unknown. Here, we report that depleting sucrose from the medium or adding gibberellic acids (GAs) can partially restore the defects in phototropic curvature of the phot1 phot2 double mutants under high-intensity blue light; this restoration does not occur in phot1 phot2 cry1 cry2 quadruple mutants and nph3 (nonphototropic hypocotyl 3) mutants which were impaired phototropic response in sucrose-containing medium. These results indicate that GAs and sucrose antagonistically regulate hypocotyl phototropism in a cryptochromes dependent manner, but it showed a crosstalk with phototropin signaling on NPH3. Furthermore, cryptochromes activation by blue light inhibit GAs synthesis, thus stabilizing DELLAs to block hypocotyl growth, which result in the higher GAs content in the shade side than the lit side of hypocotyl to support the asymmetric growth of hypocotyl. Through modulation of the abundance of DELLAs by sucrose depletion or added GAs, it revealed that cryptochromes have a function in mediating phototropic curvature.
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Registered trials
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