ArticleProceedings of the National Academy of Sciences of the United States of America2008
Role of root UV-B sensing in Arabidopsis early seedling development.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed.
- Article
- Knockdown of Arabidopsis RUS4 impacts pollen coat formation by affecting flavonoid and lipid metabolism.Planta · 2026Article
- Article
- Lights, location, action: shade avoidance signalling over spatial scales.Journal of experimental botany · 2025Review
- Root-specific photoreception directs early root development by HY5-regulated ROS balance.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Lineage-specific gene duplication and expansion of DUF1216 gene family in Brassicaceae.PloS one · 2024Article
- Article
- Genetic regulation of lateral root development.Plant signaling & behavior · 2023Review
- Ultraviolet-B radiation in relation to agriculture in the context of climate change: a review.Cereal research communications · 2023Review
- Abscisic Acid Inhibits Cortical Microtubules Reorganization and Enhances Ultraviolet-B Tolerance inGenes · 2023Article
- Unraveling the Diverse Roles of Neglected Genes Containing Domains of Unknown Function (DUFs): Progress and Perspective.International journal of molecular sciences · 2023Review
- Article
- Plants Utilize Suberin Biopolymers as a Vector for Transmitting Visible Light through Their Roots.Polymers · 2022Article
- Changes in Quercetin Derivatives and Antioxidant Activity in Marigold Petals (Plants (Basel, Switzerland) · 2022Article
- Foliar and Root Comparative Metabolomics and Phenolic Profiling of Micro-Tom Tomato (Plants (Basel, Switzerland) · 2022Article
- Transcriptomic analysis of OsRUS1 overexpression rice lines with rapid and dynamic leaf rolling morphology.Scientific reports · 2022Article
- Identification of genomic regions of wheat associated with grain Fe and Zn content under drought and heat stress using genome-wide association study.Frontiers in genetics · 2022Article
- Ultraviolet-B Radiation Represses Primary Root Elongation by Inhibiting Cell Proliferation in the Meristematic Zone of Arabidopsis Seedlings.Frontiers in plant science · 2022Article
- Genome-Wide Identification and Transcriptional Analysis of ArabidopsisInternational journal of molecular sciences · 2021Article
- Article
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Authors and funding
6 authors.
Funding
Abstract
All sun-exposed organisms are affected by UV-B [(UVB) 280-320 nm], an integral part of sunlight. UVB can cause stresses or act as a developmental signal depending on its fluence levels. In plants, the mechanism by which high-fluence-rate UVB causes damages and activates DNA-repair systems has been extensively studied. However, little is known about how nondamaging low-fluence-rate UVB is perceived to regulate plant morphogenesis and development. Here, we report the identification of an Arabidopsis mutant, root UVB sensitive 1 (rus1), whose primary root is hypersensitive to very low-fluence-rate (VLF) UVB. Under standard growth-chamber fluorescent white light, rus1 displays stunted root growth and fails to form postembryonic leaves. Experiments with different monochromatic light sources showed that rus1 phenotypes can be rescued if the seedlings are allowed to grow in light conditions with minimum UVB. We determined that roots, not other organs, perceive the UVB signal. Genetic and molecular analyses confirmed that the root light-sensitive phenotypes are independent of all other known plant photoreceptors. Three rus1 alleles have been identified and characterized. A map-based approach was used to identify the RUS1 locus. RUS1 encodes a protein that contains DUF647 (domain of unknown function 647), a domain highly conserved in eukaryotes. Our results demonstrate a root VLF UVB-sensing mechanism that is involved in Arabidopsis early seedling morphogenesis and development.
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