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Complex Intracellular Structures in Prokaryotes pp 167–191Cite as

Magnetosomes in Magnetotactic Bacteria

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Part of the book series: Microbiology Monographs ((MICROMONO,volume 2))

Abstract

The ability of magnetotactic bacteria (MTB) to orient and migrate along magnetic field lines is basedon magnetosomes, which are membrane-enclosed intracellular crystals of a magnetic iron mineral. Thebiomineralization of magnetosomes is a process with genetic control over the accumulation of iron,the deposition of the magnetic crystal within a specific compartment, as well as their intracellularassembly and alignment into chain-like structures. Magnetite crystals produced by MTB have uniform species-specificmorphologies and sizes, which are mostly unknown from inorganic systems. In addition, magnetosome chainformation is an example of the highest structural level achievable in a prokaryotic cell. In thiswork, we give an overview of the biology of MTB and the structure and functions of bacterial magnetosomes.In addition we summarize the current knowledge of the physico-chemical and molecular genetic basis of magnetosomebiomineralization and chain formation.

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Acknowledgments

We would like to acknowledge our students, colleagues, and numerous collaborators. Research in the authors lab is supported by the Max Planck Society, the Deutsche Forschungsgemeinschaft, and the German BMBF.

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  1. Max Planck Institute for Marine Microbiology, Celsiusstrasse 1, 28359, Bremen, Germany

    André Scheffel & Dirk Schüler

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Jessup M. Shively

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Scheffel, A., Schüler, D. (2006). Magnetosomes in Magnetotactic Bacteria. In: Shively, J.M. (eds) Complex Intracellular Structures in Prokaryotes. Microbiology Monographs, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/7171_024

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