ArticlePlant molecular biology2003
Phototropin 1 is required for high-fluence blue-light-mediated mRNA destabilization.
Article in Plant molecular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 51 citations in OpenAlex.
- Integrating temperature into the Arabidopsis circadian system.Npj biological timing and sleep · 2025Review
- Transcriptomic and Proteomic Characterizations of the Molecular Response to Blue Light and Salicylic Acid inMarine drugs · 2021Article
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- Phototropin2 Contributes to the Chloroplast Avoidance Response at the Chloroplast-Plasma Membrane Interface.Plant physiology · 2020Article
- Shining Light on the Function of NPH3/RPT2-Like Proteins in Phototropin Signaling.Plant physiology · 2018Review
- In Planta Determination of the mRNA-Binding Proteome of Arabidopsis Etiolated Seedlings.The Plant cell · 2016Article
- Article
- Arabidopsis phot1 and phot2 phosphorylate BLUS1 kinase with different efficiencies in stomatal opening.Journal of plant research · 2016Article
- Plant flavoprotein photoreceptors.Plant & cell physiology · 2015Review
- Article
- Phototropin influence on eyespot development and regulation of phototactic behavior in Chlamydomonas reinhardtii.The Plant cell · 2012Article
- Article
- Expression of enzymes involved in chlorophyll catabolism in Arabidopsis is light controlled.Plant physiology · 2011Article
- The Cryptochrome Blue Light Receptors.The arabidopsis book · 2010Article
- Overexpression of Arabidopsis damaged DNA binding protein 1A (DDB1A) enhances UV tolerance.Plant molecular biology · 2009Article
- CIRCADIAN CLOCK ASSOCIATED1 transcript stability and the entrainment of the circadian clock in Arabidopsis.Plant physiology · 2007Article
- Green light adjusts the plastid transcriptome during early photomorphogenic development.Plant physiology · 2006Article
- The Fed-1 (CAUU)4 element is a 5' UTR dark-responsive mRNA instability element that functions independently of dark-induced polyribosome dissociation.Plant molecular biology · 2004Article
- Primary inhibition of hypocotyl growth and phototropism depend differently on phototropin-mediated increases in cytoplasmic calcium induced by blue light.Plant physiology · 2003Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Irradiation of etiolated wild-type Arabidopsis thaliana seedlings with a single pulse of blue (B) light with a total fluence equal to that of 1 min of sunlight causes the destabilization of nuclear-encoded Lhcb transcripts. Transcript destabilization is not observed in phototropin1 (phot1, formerly nph1) mutant seedlings, indicating that phot1 is likely the photoreceptor mediating this response. Destabilization is also absent in nph3 mutants, but occurs normally in nph4 mutants. The rates of Lhcb transcription and B low-fluence-induced Lhcb transcript accumulation are normal in phot1 seedlings, confirming that photl regulates destabilization, not a change in transcription. A similar pattern of regulation is observed for the chloroplast-encoded rbcL transcript. The lack of destabilization of a second chloroplast encoded transcript, psbD, indicates that the phot1/B-high-fluence system does not result in a general destabilization of all chloroplast transcripts. Localized sequence similarity between the Lhcb 5'-UTR and the rbcL 3'-UTR suggests a similar mechanism of destabilization even though the two transcripts are located in different sub-cellular compartments. The high-fluence threshold of phot1-mediated RNA destabilization contrasts with the low-fluence threshold required for phot1-directed first-positive phototropic curvature. This study indicates that phot1, like phytochrome, can discriminate between several fluence ranges and direct responses in specific tissues or different sub-cellular compartments.
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