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Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg, Germany http://www.desy.de
Contact Mr Prof. Henry Chapman +49 40 89984155
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Deutsches Elektronen-Synchrotron DESY

Forscher beobachten Photosynthese in Aktion

Erste Filmszene der molekularen Dynamik im Photosystem II

(PresseBox) (Hamburg, )
Ein internationales Forscherteam unter Beteiligung von DESY hat einen zentralen Schritt der Photosynthese erstmals in Aktion festgehalten. Die Gruppe unter Leitung von Prof. Petra Fromme von der Arizona State University nutzte den weltweit stärksten Röntgenlaser am US-Beschleunigerzentrum SLAC, um Standbilder eines Molekülkomplexes namens Photosystem II aufzunehmen. Das Photosystem II spaltet unter Einfluss von Sonnenlicht Wasser in Wasserstoff und Sauerstoff. Dieser Prozess liefert den Sauerstoff in der Erdatmosphäre. Die Wissenschaftler präsentieren ihre Beobachtungen in der aktuellen Ausgabe des Fachjournals "Nature".

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