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@ARTICLE{Strauss:601930,
      author       = {Strauss, Jan and Deng, Longji and Gao, Shiqiang and
                      Toseland, Andrew and Bachy, Charles and Zhang, Chong and
                      Kirkham, Amy and Hopes, Amanda and Utting, Robert and Joest,
                      Eike F. and Tagliabue, Alessandro and Loew, Christian and
                      Worden, Alexandra Z. and Nagel, Georg and Mock, Thomas},
      title        = {{P}lastid-localized xanthorhodopsin increases diatom
                      biomass and ecosystem productivity in iron-limited surface
                      oceans},
      journal      = {Nature microbiology},
      volume       = {8},
      number       = {11},
      issn         = {2058-5276},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {PUBDB-2024-00420},
      pages        = {2050 - 2066},
      year         = {2023},
      abstract     = {Microbial rhodopsins are photoreceptor proteins that
                      convert light into biological signals or energy. Proteins of
                      the xanthorhodopsin family are common in eukaryotic
                      photosynthetic plankton including diatoms. However, their
                      biological role in these organisms remains elusive. Here we
                      report on a xanthorhodopsin variant (FcR1) isolated from the
                      polar diatom Fragilariopsis cylindrus. Applying a
                      combination of biophysical, biochemical and reverse genetics
                      approaches, we demonstrate that FcR1 is a plastid-localized
                      proton pump which binds the chromophore retinal and is
                      activated by green light. Enhanced growth of a Thalassiora
                      pseudonana gain-of-function mutant expressing FcR1 under
                      iron limitation shows that the xanthorhodopsin proton pump
                      supports growth when chlorophyll-based photosynthesis is
                      iron-limited. The abundance of xanthorhodopsin transcripts
                      in natural diatom communities of the surface oceans is
                      anticorrelated with the availability of dissolved iron.
                      Thus, we propose that these proton pumps convey a fitness
                      advantage in regions where phytoplankton growth is limited
                      by the availability of dissolved iron.},
      cin          = {CSSB-EMBL-CL},
      ddc          = {570},
      cid          = {I:(DE-H253)CSSB-EMBL-CL-20210806},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:37845316},
      UT           = {WOS:001090801200001},
      doi          = {10.1038/s41564-023-01498-5},
      url          = {https://bib-pubdb1.desy.de/record/601930},
}