ArticleThe Plant cell2005
The Rice COLEOPTILE PHOTOTROPISM1 gene encoding an ortholog of Arabidopsis NPH3 is required for phototropism of coleoptiles and lateral translocation of auxin.
Article in The Plant cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.
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Who cites it
50 citing papers in PubMed, 121 citations in OpenAlex.
- Reversible phosphorylation of NPH3/RPT2-like proteins regulates phototropin receptor signaling.The Plant cell · 2026Article
- Novel loci for flag leaf thickness with breeding potential: genetic dissection and candidate genes prediction.Frontiers in plant science · 2026Article
- Genome-Wide Identification and Analysis of Collar Region-Preferential Genes in Rice.Plants (Basel, Switzerland) · 2023Article
- Genetic dissection of maize (Zea mays L.) chlorophyll content using multi-locus genome-wide association studies.BMC genomics · 2023Article
- Genome-wide association analysis for emergence of deeply sown rice (Frontiers in plant science · 2023Article
- Deletion of Diterpenoid Biosynthetic GenesInternational journal of molecular sciences · 2022Article
- Regulation of plant phototropic growth by NPH3/RPT2-like substrate phosphorylation and 14-3-3 binding.Nature communications · 2021Article
- Modulation of Phototropin Signalosome with Artificial Illumination Holds Great Potential in the Development of Climate-Smart Crops.Current genomics · 2021Review
- Blue Light Improves Photosynthetic Performance during Healing and Acclimatization of Grafted Watermelon Seedlings.International journal of molecular sciences · 2021Article
- A comprehensive RNA-Seq-based gene expression atlas of the summer squash (Cucurbita pepo) provides insights into fruit morphology and ripening mechanisms.BMC genomics · 2021Article
- Genome-wide identification of the 14-3-3 gene family and its participation in floral transition by interacting with TFL1/FT in apple.BMC genomics · 2021Article
- Promoter Architecture and Transcriptional Regulation of Genes Upregulated in Germination and Coleoptile Elongation of Diverse Rice Genotypes Tolerant to Submergence.Frontiers in genetics · 2021Article
- Karrikin Signaling Acts Parallel to and Additively with Strigolactone Signaling to Regulate Rice Mesocotyl Elongation in Darkness.The Plant cell · 2020Article
- Light-induced chloroplast movements in Oryza species.Journal of plant research · 2020Article
- Comprehensive Transcriptomic Analysis of Auxin Responses in Submerged Rice Coleoptile Growth.International journal of molecular sciences · 2020Article
- Transcriptome sequencing reveals hotspot mutation regions and dwarfing mechanisms in wheat mutants induced by γ-ray irradiation and EMS.Journal of radiation research · 2020Article
- Elucidating the genetic basis of biomass accumulation and radiation use efficiency in spring wheat and its role in yield potential.Plant biotechnology journal · 2019Article
- Deetiolation Enhances Phototropism by Modulating NON-PHOTOTROPIC HYPOCOTYL3 Phosphorylation Status.Plant physiology · 2019Article
- Control of Adventitious Root Architecture in Rice by Darkness, Light, and Gravity.Plant physiology · 2018Article
- Functional Analysis of MAX2 in Phototropins-Mediated Cotyledon Flattening inFrontiers in plant science · 2018Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We isolated a mutant, named coleoptile phototropism1 (cpt1), from gamma-ray-mutagenized japonica-type rice (Oryza sativa). This mutant showed no coleoptile phototropism and severely reduced root phototropism after continuous stimulation. A map-based cloning strategy and transgenic complementation test were applied to demonstrate that a NPH3-like gene deleted in the mutant corresponds to CPT1. Phylogenetic analysis of putative CPT1 homologs of rice and related proteins indicated that CPT1 has an orthologous relationship with Arabidopsis thaliana NPH3. These results, along with those for Arabidopsis, demonstrate that NPH3/CPT1 is a key signal transduction component of higher plant phototropism. In an extended study with the cpt1 mutant, it was found that phototropic differential growth is accompanied by a CPT1-independent inhibition of net growth. Kinetic investigation further indicated that a small phototropism occurs in cpt1 coleoptiles. This response, induced only transiently, was thought to be caused by the CPT1-independent growth inhibition. The 3H-indole-3-acetic acid applied to the coleoptile tip was asymmetrically distributed between the two sides of phototropically responding coleoptiles. However, no asymmetry was induced in cpt1 coleoptiles, indicating that lateral translocation of auxin occurs downstream of CPT1. It is concluded that the CPT1-dependent major phototropism of coleoptiles is achieved by lateral auxin translocation and subsequent growth redistribution.
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