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Detection of peptidic sequences in the ancient acidic sediments of Río Tinto, Spain.
Orig. Life Evol. Biosph. 41, 523-527 (2011)
DOI Verlagsversion bestellen
Biomarkers are molecules that are produced by or can be associated with biological activities. They can be used as tracers that give us an idea of the ancient biological communities that produced them, the paleoenvironmental conditions where they lived, or the mechanism involved in their transformation and preservation. As a consequence, the preservation potential of molecules over time depends largely on their nature, but also on the conditions of the environment, which controls the decomposition kinetics. In this context, proteins and nucleic acids, which are biomolecules bearing biological information, are among the most labile molecules. In this research, we report the presence of short-chained peptides obtained from extracts of ferruginous sedimentary deposits that have been produced under the acidic and oxidizing solutions of Río Tinto, Spain. These preliminary results go against the paradigmatic idea that considers the acidic and oxidizing environments inappropriate for the preservation of molecular information.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Rio Tinto; Biomarkers; Peptides; Preservation; MURCHISON METEORITE; EARTH
ISSN (print) / ISBN 0169-6149
Zeitschrift Origins of Life and Evolution of Biospheres
Quellenangaben Band: 41, Heft: 6, Seiten: 523-527
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Analytical BioGeoChemistry (BGC)