title: Lessons learned from thirty years of geomicrobiological studies of Río Tinto.
abstract: Río Tinto (SW Spain) is an extreme acidic environment with a remarkable concentration of toxic heavy metals. The geomicrobiological characterization of the Tinto basin, carried out over the last thirty years, has proven the importance of the iron cycle in not only generating the river's extreme conditions, but also in maintaining the high level of microbial diversity. This work also shows that the extreme conditions found in the Tinto basin are not, as previously thought, the product of mining activities, but are, in fact, the result of the active subsurface bioreactor that obtains energy from the high concentration of massive sulfide minerals present in the Iberian Pyrite Belt.
authors.affiliation: Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Astrobiología (INTA-CSIC), ctra Ajalvir km 4, 28850 Torrejón de Ardoz, Spain. Electronic address: ramils@cbm.csic.es.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Amils
mesh_terms: D058448:Biota; D004785:Environmental Pollutants / Q000378:metabolism* / Q000633:toxicity; D019216:Metals, Heavy / Q000378:metabolism* / Q000633:toxicity; D045483:Rivers / Q000382:microbiology*; D012988:Soil Microbiology; D013030:Spain; D013440:Sulfides / Q000378:metabolism
chemical_list: D004785:Environmental Pollutants; D019216:Metals, Heavy; D013440:Sulfides
keywords: Biohydrometallurgy; Geomicrobiology; Iberian Pyrite Belt; Río Tinto