Detection of Peptidic Sequences in the Ancient Acidic Sediments of Rio Tinto, Spain
Por:
Colín-García M., Kanawati B., Harir M., Schmitt-Kopplin P., Amils R., Parro V., García M., Fernández-Remolar D.
Publicada:
1 dic 2011
Resumen:
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 Rio Tinto, Spain. These preliminary results go against the paradigmatic idea that considers the acidic and oxidizing environments inappropriate for the pres
Filiaciones:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Inst Geol, Mexico City 04510, DF, Mexico
Department of BioGeoChemistry and Analytics, Institute of Ecological Chemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany
Centro de Astrobiología, (CSIC/INTA), Instituto Nacional de Técnica Aeroespacial. Ctra. de Torrejón a Ajalvir, km 4, 28850. Torrejón de Ardoz, Madrid, Spain
Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Mexico, DF, Mexico
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior S/N Ciudad Universitaria, 04510 México, DF, Mexico
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