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Geometrical Arrangement of Magnetosomes in Magnetotactic Bacteria

Published online by Cambridge University Press:  15 February 2011

W.-H. Shih ,
M. Sarikaya ,
W. Y. Shih  and
I. A. Aksay
W.-H. Shih
Affiliation:
Department of Materials Science and Engineering, and Advanced Materials Technology Center, Washington Technology Center, University of Washington, Seattle, WA 98195
M. Sarikaya
Affiliation:
Department of Materials Science and Engineering, and Advanced Materials Technology Center, Washington Technology Center, University of Washington, Seattle, WA 98195
W. Y. Shih
Affiliation:
Department of Materials Science and Engineering, and Advanced Materials Technology Center, Washington Technology Center, University of Washington, Seattle, WA 98195
I. A. Aksay
Affiliation:
Department of Materials Science and Engineering, and Advanced Materials Technology Center, Washington Technology Center, University of Washington, Seattle, WA 98195
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Abstract

In 1975, Blakemore discovered the freshwater magnetotactic bacterium Aquaspirillum magnetotacticum which navigates along the magnetic-field direction. Electron microscopic work showed that the magnetotactic bacteria contain magnetosomes which are intracytoplasmic membrane-bound particles of magnetite, Fe3 O4. The magnetosomes are within the single-domain size range (∼500 Å) of Fe3O4. The magnetosomes within cells are often arranged in one or more chains with the chain axis more or less parallel to the axis of motility of the cell. A detailed study of the magnetic properties of magnetotactic bacteria can be found in the paper by Moskowitz.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 218: Symposium V – Materials Synthesis Based on Biological Processes , 1990 , 109
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

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