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Photosystem I gene cassettes are present in marine virus genomes

Author

Listed:
  • Itai Sharon

    (Faculty of Biology,
    Faculty of Computer Science,)

  • Ariella Alperovitch

    (Faculty of Biology,)

  • Forest Rohwer

    (Department of Biology,
    Center for Microbial Sciences, San Diego State University, San Diego, California 92182, USA)

  • Matthew Haynes

    (Department of Biology,)

  • Fabian Glaser

    (Bioinformatics Knowledge Unit, Lorry I. Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel)

  • Nof Atamna-Ismaeel

    (Faculty of Biology,)

  • Ron Y. Pinter

    (Faculty of Computer Science,)

  • Frédéric Partensky

    (CNRS and UPMC-Université Paris 6 (UMR 7144), Station Biologique, 29682 Roscoff, France)

  • Eugene V. Koonin

    (National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland 20894, USA)

  • Yuri I. Wolf

    (National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland 20894, USA)

  • Nathan Nelson

    (George S. Wise Faculty of Life Sciences, Daniella Rich Institute for Structural Biology, Tel Aviv University)

  • Oded Béjà

    (Faculty of Biology,)

Abstract

Photosystems at the double Like plant chloroplasts, the photosynthetic membranes of marine cyanobacteria contain two photosystems: photosystem II (PSII) mediates electron transfer from water to plastoquinones and PSI mediates electron transfer from plastocyanin to ferredoxin, thereby generating reducing power needed for CO2 fixation in the form of NADPH. Core PSII genes were recently found in cyanophages, viruses that infect cyanobacteria, where they presumably supplement the host's photosynthetic abilities. Now a trawl through metagenomic data from the Sorcerer II Global Ocean Sampling Expedition and through viral biomes reveals that PSI components are also present in cyanophages, presumably also contributing to overall photosynthetic performance.

Suggested Citation

  • Itai Sharon & Ariella Alperovitch & Forest Rohwer & Matthew Haynes & Fabian Glaser & Nof Atamna-Ismaeel & Ron Y. Pinter & Frédéric Partensky & Eugene V. Koonin & Yuri I. Wolf & Nathan Nelson & Oded Bé, 2009. "Photosystem I gene cassettes are present in marine virus genomes," Nature, Nature, vol. 461(7261), pages 258-262, September.
    • Handle: RePEc:nat:nature:v:461:y:2009:i:7261:d:10.1038_nature08284
    DOI: 10.1038/nature08284
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