Articles | Volume 16, issue 3
https://doi.org/10.5194/bg-16-811-2019
https://doi.org/10.5194/bg-16-811-2019
Research article
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13 Feb 2019
Research article | Highlight paper |  | 13 Feb 2019

Mineral formation induced by cable bacteria performing long-distance electron transport in marine sediments

Nicole M. J. Geerlings, Eva-Maria Zetsche, Silvia Hidalgo-Martinez, Jack J. Middelburg, and Filip J. R. Meysman

Video supplement

FIB-SEM video of a weakly encrusted cable bacterium N. M. J. Geerlings, E.-M. Zetsche, S. Hidalgo-Martinez, J. J. Middelburg, and F. J. R. Meysman https://doi.org/10.5446/38390

FIB-SEM video of two strongly encrusted cable bacteria N. M. J. Geerlings, E.-M. Zetsche, S. Hidalgo-Martinez, J. J. Middelburg, and F. J. R. Meysman https://doi.org/10.5446/38389

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Short summary
Multicellular cable bacteria form long filaments that can reach lengths of several centimeters. They affect the chemistry and mineralogy of their surroundings and vice versa. How the surroundings affect the cable bacteria is investigated. They show three different types of biomineral formation: (1) a polymer containing phosphorus in their cells, (2) a sheath of clay surrounding the surface of the filament and (3) the encrustation of a filament via a solid phase containing iron and phosphorus.
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