ArticleProceedings of the National Academy of Sciences of the United States of America2006
A single chromoprotein with triple chromophores acts as both a phytochrome and a phototropin.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 46 citations in OpenAlex.
- Monochromatic light reprograms transcription, metabolism, and rhizosphere microbial communities inPlant signaling & behavior · 2026Article
- Evolution of rapid blue-light response linked to explosive diversification of ferns in angiosperm forests.The New phytologist · 2021Article
- First Multi-Organ Full-Length Transcriptome of Tree FernFrontiers in genetics · 2021Article
- Atavistic Stomatal Responses to Blue Light in Marsileaceae.Plant physiology · 2020Article
- Low-fluence blue light-induced phosphorylation of Zmphot1 mediates the first positive phototropism.Journal of experimental botany · 2019Article
- Phototropins of the moss Physcomitrella patens function as blue-light receptors for phototropism in Arabidopsis.Plant signaling & behavior · 2018Article
- Evolutionary aspects of plant photoreceptors.Journal of plant research · 2016Review
- Holophytochrome-Interacting Proteins in Physcomitrella: Putative Actors in Phytochrome Cytoplasmic Signaling.Frontiers in plant science · 2016Article
- Chloroplast and nuclear photorelocation movements.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2016Review
- Phytochrome diversity in green plants and the origin of canonical plant phytochromes.Nature communications · 2015Article
- Intramolecular co-action of two independent photosensory modules in the fern phytochrome 3.Plant signaling & behavior · 2015Article
- The origin and evolution of phototropins.Frontiers in plant science · 2015Article
- Phototropin encoded by a single-copy gene mediates chloroplast photorelocation movements in the liverwort Marchantia polymorpha.Plant physiology · 2014Article
- Horizontal transfer of an adaptive chimeric photoreceptor from bryophytes to ferns.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Nuclear phytochrome A signaling promotes phototropism in Arabidopsis.The Plant cell · 2012Article
- Light-induced structural changes of the LOV2 domains in various phototropins revealed by FTIR spectroscopy.Biophysics (Nagoya-shi, Japan) · 2011Review
- Phototropin receptor kinase activation by blue light.Plant signaling & behavior · 2008Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plants sense their environmental light conditions by using three photoreceptors that absorb in the UV, blue/near UV, and red/far-red spectral ranges. These photoreceptors have specific chromophore components corresponding to their absorption spectra. Phytochrome, a red/far-red light receptor, has phytochromobilin as its chromophore, whereas the blue/near UV photoreceptors cryptochrome and phototropin have a pair of flavin derivatives. Plants use these various photoreceptors to assess the surrounding light environment. Phytochrome 3 (PHY3) is a red light receptor found in some ferns, which preferentially grow under weak light. PHY3 is composed of a phytochrome chromophore-binding domain in its N-terminal portion and an almost full-length phototropin in its C-terminal half. This unusual domain organization implies that two different light-sensing systems coexist in this single photoreceptor, although these light-sensing systems usually reside in independent photoreceptors. Here, we show that PHY3 acts as a dual-channel photoreceptor that possesses both the red light-sensing system of phytochrome and the blue light-sensing system of phototropin. Furthermore, red- and blue-light signals perceived by PHY3 are processed synergistically within this single chromoprotein. These unusual properties might confer an enhanced light sensitivity on PHY3, allowing ferns to grow under a low-light canopy.
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