ArticlePlant physiology2007
A study of gibberellin homeostasis and cryptochrome-mediated blue light inhibition of hypocotyl elongation.
Article in Plant physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.
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Who cites it
64 citing papers in PubMed, 172 citations in OpenAlex.
- Integrated light spectrum and growth regulators improved the growth of saffron daughter corms by regulating carbohydrate metabolism in a novel two-stage cropping system.BMC plant biology · 2026Article
- Time-Resolved Native Mass Spectrometry Reveals Reversible Light-Driven Oligomerization of Arabidopsis Cryptochrome 1 and Its Antagonism by BIC1.Angewandte Chemie (International ed. in English) · 2026Article
- Transcriptomic analysis reveals light quality response and systemic nutrient allocation under monochromatic light environments in Nicotiana tabacum.BMC plant biology · 2025Article
- Effects of Light Quality on Flowering and Physiological Parameters ofPlants (Basel, Switzerland) · 2025Article
- Comparing hormone dynamics in cereal crops via transient expression of hormone sensors.Plant & cell physiology · 2025Article
- CRY1-GAIP1 complex mediates blue light to hinder the repression of PIF5 on AGL5 to promote carotenoid biosynthesis in mango fruit.Plant biotechnology journal · 2025Article
- Hormone Regulation Effect of Blue Light on Soybean Stem Internode Growth Based on the Grey Correlation Analysis Model.International journal of molecular sciences · 2025Article
- Effect of Photosynthetic Photon Flux Density on Paprika Seedling Growth Using Rockwool Block.Plants (Basel, Switzerland) · 2025Article
- GIBBERELLIN PERCEPTION SENSOR 2 reveals genesis and role of cellular GA dynamics in light-regulated hypocotyl growth.The Plant cell · 2024Article
- The PHYB-FOF2-VOZ2 module functions to fine-tune flowering in response to changes in light quality by modulating FLC expression in Arabidopsis.Plant communications · 2024Article
- Comparative Transcriptomic Analysis of the Metabolism of Betalains and Flavonoids in Red Amaranth Hypocotyl under Blue Light and Dark Conditions.Molecules (Basel, Switzerland) · 2023Article
- Promoting the application of Pinus thunbergii Parl. to enhance the growth and survival rates of post-germination somatic plantlets.BMC plant biology · 2023Article
- How plants coordinate their development in response to light and temperature signals.The Plant cell · 2022Review
- OsBIC1 Directly Interacts with OsCRYs to Regulate Leaf Sheath Length through Mediating GA-Responsive Pathway.International journal of molecular sciences · 2021Article
- Chromatin spatial organization of wild type and mutant peanuts reveals high-resolution genomic architecture and interaction alterations.Genome biology · 2021Article
- The blue light receptor CRY1 interacts with GID1 and DELLA proteins to repress gibberellin signaling and plant growth.Plant communications · 2021Article
- Analyses of the photosynthetic characteristics, chloroplast ultrastructure, and transcriptome of apple (Malus domestica) grown under red and blue lights.BMC plant biology · 2021Article
- The Breeding of Winter-Hardy Malting Barley.Plants (Basel, Switzerland) · 2021Review
- Cryptochromes and the Circadian Clock: The Story of a Very Complex Relationship in a Spinning World.Genes · 2021Review
- Comparative gene expression analysis reveals that multiple mechanisms regulate the weeping trait in Prunus mume.Scientific reports · 2021Article
4 more citing papers are in PubMed but not listed here.
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Authors and funding
11 authors at 3 institutions in 3 countries.
Funding
Abstract
Cryptochromes mediate blue light-dependent photomorphogenic responses, such as inhibition of hypocotyl elongation. To investigate the underlying mechanism, we analyzed a genetic suppressor, scc7-D (suppressors of cry1cry2), which suppressed the long-hypocotyl phenotype of the cry1cry2 (cryptochrome1/cryptochrome2) mutant in a light-dependent but wavelength-independent manner. scc7-D is a gain-of-expression allele of the GA2ox8 gene encoding a gibberellin (GA)-inactivating enzyme, GA 2-oxidase. Although scc7-D is hypersensitive to light, transgenic seedlings expressing GA2ox at a level higher than scc7-D showed a constitutive photomorphogenic phenotype, confirming a general role of GA2ox and GA in the suppression of hypocotyl elongation. Prompted by this result, we investigated blue light regulation of mRNA expression of the GA metabolic and catabolic genes. We demonstrated that cryptochromes are required for the blue light regulation of GA2ox1, GA20ox1, and GA3ox1 expression in transient induction, continuous illumination, and photoperiodic conditions. The kinetics of cryptochrome induction of GA2ox1 expression and cryptochrome suppression of GA20ox1 or GA3ox1 expression correlate with the cryptochrome-dependent transient reduction of GA(4) in etiolated wild-type seedlings exposed to blue light. Therefore we propose that in deetiolating seedlings, cryptochromes mediate blue light regulation of GA catabolic/metabolic genes, which affect GA levels and hypocotyl elongation. Surprisingly, no significant change in the GA(4) content was detected in the whole shoot samples of the wild-type or cry1cry2 seedlings grown in the dark or continuous blue light, suggesting that cryptochromes may also regulate GA responsiveness and/or trigger cell- or tissue-specific changes of the level of bioactive GAs.
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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.