News Column

New Anions Study Findings Have Been Reported by M. Sanchez-Roman and Co-Researchers (Microbial mediated formation of Fe-carbonate minerals under...

August 15, 2014



New Anions Study Findings Have Been Reported by M. Sanchez-Roman and Co-Researchers (Microbial mediated formation of Fe-carbonate minerals under extreme acidic conditions)

By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Anions are presented in a new report. According to news reporting from Madrid, Spain, by NewsRx journalists, research stated, "Discovery of Fe-carbonate precipitation in Rio Tinto, a shallow river with very acidic waters, situated in Huelva, South-western Spain, adds a new dimension to our understanding of carbonate formation. Sediment samples from this low-pH system indicate that carbonates are formed in physico-chemical conditions ranging from acid to neutral pH."

The news correspondents obtained a quote from the research, "Evidence for microbial mediation is observed in secondary electron images (Fig. 1), which reveal rod-shaped bacteria embedded in the surface of siderite nanocrystals. The formation of carbonates in Rio Tinto is related to the microbial reduction of ferric iron coupled to the oxidation of organic compounds. Herein, we demonstrate for the first time, that Acidiphilium sp. PM, an iron-reducing bacterium isolated from Rio Tinto, mediates the precipitation of siderite (FeCO3) under acidic conditions and at a low temperature (30C). We describe nucleation of siderite on nanoglobules in intimate association with the bacteria cell surface."

According to the news reporters, the research concluded: "This study has major implications for understanding carbonate formation on the ancient Earth or extraterrestrial planets."

For more information on this research see: Microbial mediated formation of Fe-carbonate minerals under extreme acidic conditions. Scientific Reports, 2014;4():4767. (Nature Publishing Group - www.nature.com/; Scientific Reports - www.nature.com/srep/)

Our news journalists report that additional information may be obtained by contacting M. Sanchez-Roman, Centro de Astrobiologia (INTA-CSIC), Torrejon de Ardoz, 28850 Madrid, Spain. Additional authors for this research include D. Fernandez-Remolar, R. Amils, A. Sanchez-Navas, T. Schmid, P. San Martin-Uriz, N. Rodriguez, J.A. McKenzie and C. Vasconcelos (see also Anions).

Keywords for this news article include: Spain, Madrid, Europe, Anions, Alkalies, Carbonates, Carbonic Acid.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


For more stories covering the world of technology, please see HispanicBusiness' Tech Channel



Source: Science Letter


Story Tools






HispanicBusiness.com Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters