Magnetite in Freshwater Magnetotactic Bacteria

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Science  30 Mar 1979:
Vol. 203, Issue 4387, pp. 1355-1356
DOI: 10.1126/science.203.4387.1355


A previously undescribed magnetotactic spirillum isolated from a freshwater swamp was mass cultured in the magnetic as well as the nonmagnetic state in chemically defined culture media. Results of Mossbauer spectroscopic analysis applied to whole cells identifies magnetite as a constituent of these magnetic bacteria.