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The Radiation tolerance of ignicoccus species : Their astrobiological relevance and implications to DNA repair processes

URN to cite this document:
urn:nbn:de:bvb:355-epub-347416
DOI to cite this document:
10.5283/epub.34741
Koschnitzki, Dagmar
Date of publication of this fulltext: 11 Sep 2017 05:36


Abstract (English)

The environmental conditions on early Earth were harsh and hostile for life compared to environmental conditions revailing on present Earth. The atmosphere during the Archaean Age (3.8-2.5 Ga ago) was essentially anoxic and the lack of an UV-absorbing ozone layer enabled the solar ultraviolet radiation spectrum to penetrate Earth´s surface increasing the overall terrestrial UV stress. In ...

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Translation of the abstract (German)

Die Umweltbedingungen der frühen Erde, vor 3,8-2,5 Milliarden Jahren, waren im Vergleich zu den heutigen Umweltbedingungen hart und lebensfeindlich. Die Atmosphäre während des Archaikums war nahezu sauerstofflos und die UV-absorbierende Ozonschicht fehlte. Das solare ultraviolette Strahlenspektrum konnte ungehindert in die Erdoberfläche eindringen. Dieses hohe Strahlungsniveau wurde begleitet von ...

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