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Mineral Formation Induced by Cable Bacteria Performing Long-distance Electron Transport in Marine Sediments by Nicole M. J. Geerlings; Eva-Maria Zetsche; Silvia Hidalgo-Martinez; Jack J. Middelburg; Filip J. R. Meysman is a Environmental Science article available to read on EtoBox.
What is Mineral Formation Induced by Cable Bacteria Performing Long-distance Electron Transport in Marine Sediments about?
Abstract. Cable bacteria are multicellular, filamentous microorganisms that are capable of transporting electrons over centimeter-scale distances. Although recently discovered, these bacteria appear to be widely present in the seafloor, and when active they exert a strong imprint on the local geochemistry. In particular, their electrogenic metabolism induces unusually strong pH excursions in aquatic sediments, which induces considerable mineral dissolution, and subsequent mineral reprecipitation. However, at present, it is unknown whether and how cable bacteria play an active or direct role in the mineral reprecipitation process. To this end we present an explorative study of the formation of sedimentary minerals in and near filamentous cable bacteria using a combined approach of electron microscopy and spectroscopic techniques. Our observations reveal the formation of polyphosphate granules within the cells and two different types of biomineral formation directly associated with multicellular filaments of these cable bacteria: (i) the attachment and incorporation of clay particles in a coating surrounding the bacteria and (ii) encrustation of the cell envelope by iron minerals. Th
Who reads Mineral Formation Induced by Cable Bacteria Performing Long-distance Electron Transport in Marine Sediments?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Nicole M. J. Geerlings; Eva-Maria Zetsche; Silvia Hidalgo-Martinez; Jack J. Middelburg; Filip J. R. Meysman
- Publisher
- Copernicus GmbH; Göttingen: Copernicus Publ. (ISSN 1726-4189)
- Published
- 2019
- Language
- EN
- Field
- Environmental Science (Physical Sciences)