By a News Reporter-Staff News Editor at Science Letter -- Researchers detail new data in Anions. According to news reporting from Paris, France, by NewsRx journalists, research stated, "The iron oxide mineral magnetite (Fe3O4) is produced by various organisms to exploit magnetic and mechanical properties. Magnetotactic bacteria have become one of the best model organisms for studying magnetite biomineralization, as their genomes are sequenced and tools are available for their genetic manipulation."
The news correspondents obtained a quote from the research from the University of Paris, "However, the chemical route by which magnetite is formed intracellularly within the so-called magnetosomes has remained a matter of debate. Here we used X-ray absorption spectroscopy at cryogenic temperatures and transmission electron microscopic imaging techniques to chemically characterize and spatially resolve the mechanism of biomineralization in those microorganisms. We show that magnetite forms through phase transformation from a highly disordered phosphate-rich ferric hydroxide phase, consistent with prokaryotic ferritins, via transient nanometric ferric (oxyhydr)oxide intermediates within the magnetosome organelle."
According to the news reporters, the research concluded: "This pathway remarkably resembles recent results on synthetic magnetite formation and bears a high similarity to suggested mineralization mechanisms in higher organisms."
For more information on this research see: Magnetotactic bacteria form magnetite from a phosphate-rich ferric hydroxide via nanometric ferric (oxyhydr)oxide intermediates. Proceedings of the National Academy of Sciences of the United States of America, 2013;110(37):14883-14888. Proceedings of the National Academy of Sciences of the United States of America can be contacted at: Natl Acad Sciences, 2101 Constitution Ave NW, Washington, DC 20418, USA. (National Academy of Sciences - www.nasonline.org/; Proceedings of the National Academy of Sciences of the United States of America - www.nasonline.org/publications/pnas/)
Our news journalists report that additional information may be obtained by contacting J. Baumgartner, University of Paris, Center Natl Rech Sci, Inst Rech Dev, Inst Mineral & Phys Milieux CondensesUnite Mixte, F-75005 Paris, France. Additional authors for this research include G. Morin, N. Menguy, T.P. Gonzalez, M. Widdrat, J. Cosmidis and D. Faivre (see also Anions).
Keywords for this news article include: Paris, France, Europe, Anions, Alkalies, Hydroxides, Phosphates, Phosphoric Acids, Inorganic Chemicals
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