{"refrec":{"BRefID":285640,"RR":"<b>Fortunato, A.E.; Jaubert, M.; Enomoto, G.; Bouly, J.-P.; Raniello, R.; Thaler, M.; Malviya, S.; Bernardes, J.S.; Rappaport, F.; Gentili, B.; Huysman, M.J.J.; Carbone, A.; Bowler, C.; d'Alcalà, M.R.; Ikeuchi, M.; Falciatore, A.</b> (2016). Diatom phytochromes reveal the existence of far-red-light-based sensing in the ocean. <i>Plant Cell 28(3)</i>: 616-628. <a href=\"https://dx.doi.org/10.1105/tpc.15.00928\" target=\"_blank\">https://dx.doi.org/10.1105/tpc.15.00928</a>","BEntID":277665,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Plant Cell 28(3)</i>: 616-628. <a href=\"https://dx.doi.org/10.1105/tpc.15.00928\" target=\"_blank\">https://dx.doi.org/10.1105/tpc.15.00928</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Fortunato, A.E.; Jaubert, M.; Enomoto, G.; Bouly, J.-P.; Raniello, R.; Thaler, M.; Malviya, S.; Bernardes, J.S.; Rappaport, F.; Gentili, B.; Huysman, M.J.J.; Carbone, A.; Bowler, C.; d'Alcalà, M.R.; Ikeuchi, M.; Falciatore, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Fortunato, A.E. <i>et al.</i>","Englishabstract":"The absorption of visible light in aquatic environments has led to the common assumption that aquatic organisms sense and adapt to penetrative blue/green light wavelengths but show little or no response to the more attenuated red/far-red wavelengths. Here, we show that two marine diatom species, <i>Phaeodactylum tricornutum</i> and <i>Thalassiosira pseudonana</i>, possess a bona fide red/far-red light sensing phytochrome (DPH) that uses biliverdin as a chromophore and displays accentuated red-shifted absorbance peaks compared with other characterized plant and algal phytochromes. Exposure to both red and far-red light causes changes in gene expression in <i>P. tricornutum</i>, and the responses to far-red light disappear in <i>DPH</i> knockout cells, demonstrating that <i>P. tricornutum</i> DPH mediates far-red light signaling. The identification of <i>DPH</i> genes in diverse diatom species widely distributed along the water column further emphasizes the ecological significance of far-red light sensing, raising questions about the sources of far-red light. Our analyses indicate that, although far-red wavelengths from sunlight are only detectable at the ocean surface, chlorophyll fluorescence and Raman scattering can generate red/far-red photons in deeper layers. This study opens up novel perspectives on phytochrome-mediated far-red light signaling in the ocean and on the light sensing and adaptive capabilities of marine phototrophs.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Diatom phytochromes reveal the existence of far-red-light-based sensing in the ocean","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-12 01:31:42.638541","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2017-05-19","DateCreate":"2017-05-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000375415100007","VABBcode":null,"OpenAcc":1,"DOI":"10.1105/tpc.15.00928"},"refs":null,"anarec":{"AnaID":285640,"PubliDate":2016,"Pagination":"616-628","XtraPublOfAnaID":null,"ISBN":null,"Volume":"28","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":59330,"SerRR":"The Plant Cell. 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