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Søren Vrønning Hoffmann

Ribose and related sugars from ultraviolet irradiation of interstellar ice analogs

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DOI

  • Cornelia Meinert, Univ Nice Sophia Antipolis, Universite Nice Sophia Antipolis, Inst Chim Nice, UMR CNRS 7272
  • ,
  • Iuliia Myrgorodska, Synchrotron Soleil
  • ,
  • Pierre de Marcellus, Univ Paris Saclay, Centre National de la Recherche Scientifique (CNRS), University of Paris Sud - Paris XI, Universite Paris Saclay (ComUE), Univ Paris 11, CNRS, Inst Astrophys Spatiale
  • ,
  • Thomas Buhse, Univ Autonoma Estado Morelos, Universidad Autonoma del Estado de Morelos, Ctr Invest Quim
  • ,
  • Laurent Nahon, Synchrotron Soleil
  • ,
  • Soren V. Hoffmann
  • Louis Le Sergeant d'Hendecourt, Univ Paris Saclay, Centre National de la Recherche Scientifique (CNRS), University of Paris Sud - Paris XI, Universite Paris Saclay (ComUE), Univ Paris 11, CNRS, Inst Astrophys Spatiale
  • ,
  • Uwe J. Meierhenrich, Univ Nice Sophia Antipolis, Universite Nice Sophia Antipolis, Inst Chim Nice, UMR CNRS 7272

Ribose is the central molecular subunit in RNA, but the prebiotic origin of ribose remains unknown. We observed the formation of substantial quantities of ribose and a diversity of structurally related sugar molecules such as arabinose, xylose, and lyxose in the room-temperature organic residues of photo-processed interstellar ice analogs initially composed of H2O, CH3OH, and NH3. Our results suggest that the generation of numerous sugar molecules, including the aldopentose ribose, may be possible from photochemical and thermal treatment of cosmic ices in the late stages of the solar nebula. Our detection of ribose provides plausible insights into the chemical processes that could lead to formation of biologically relevant molecules in suitable planetary environments.

Original languageEnglish
JournalScience
Volume352
Issue6282
Pages (from-to)208-212
Number of pages5
ISSN0036-8075
DOIs
Publication statusPublished - 8 Apr 2016

    Research areas

  • FORMOSE REACTION, NUCLEIC-ACID, EVOLUTION, GLYCOLALDEHYDE, CHEMISTRY, GRAINS

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