Ontology highlight
ABSTRACT:
SUBMITTER: Mloszewska AM
PROVIDER: S-EPMC6079077 | biostudies-literature | 2018 Aug
REPOSITORIES: biostudies-literature
Mloszewska Aleksandra M AM Cole Devon B DB Planavsky Noah J NJ Kappler Andreas A Whitford Denise S DS Owttrim George W GW Konhauser Kurt O KO
Nature communications 20180806 1
Prior to atmospheric oxygenation, ecosystems were exposed to higher UV radiation fluxes relative to modern surface environments. Iron-silica mineral coatings have been evoked as effective UV radiation shields in early terrestrial settings. Here we test whether similar protection applied to planktonic cyanobacteria within the Archean water column. Based on experiments done under Archean seawater conditions, we report that Fe(III)-Si-rich precipitates absorb up to 70% of incoming UV-C radiation, w ...[more]