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Karlsruher Institut für Technologie Kaiserstraße 12 76131 Karlsruhe, Germany http://www.kit.edu
Contact Ms Inge Arnold +49 7247 822861
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Karlsruher Institut für Technologie

Wie das Licht die innere Uhr stellt

KIT-Wissenschaftler untersucht Rhythmusgen im Zebrafisch

(PresseBox) (Karlsruhe, )
Ein lichtempfindliches Modul in einem Rhythmusgen ermöglicht Wirbeltieren, ihre inneren 24-Stunden-Uhren an den Wechsel von Tag und Nacht anzupassen. Zu diesem Ergebnis kam der KIT-Forscher Nicholas S. Foulkes, der die lichtgesteuerte Genexpression im Zebrafisch untersuchte.

Fast alle Lebewesen, vom Einzeller bis zum Säugetier, verfügen über innere Uhren, die wichtige biologische Prozesse rhythmisch steuern. Diese Rhythmen sind genetisch festgelegt, können aber von äußeren Faktoren beeinflusst werden. So nutzen die meisten Tierarten Licht als Signal, um ihre "circadianen", das heißt etwa 24- stündigen Rhythmen, an den Tag-Nacht-Wechsel ihrer Umwelt anzupassen.
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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.