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Applied and Environmental Microbiology, June 2001, p. 2844-2848, Vol. 67, No. 6
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.6.2844-2848.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Biogenic Magnetite Formation through Anaerobic Biooxidation of Fe(II)

Swades K. Chaudhuri, Joseph G. Lack, and John D. Coates*

Department of Microbiology, Southern Illinois University, Carbondale, Illinois 62901

Received 29 November 2000/Accepted 28 March 2001

The presence of isotopically light carbonates in association with fine-grained magnetite is considered to be primarily due to the reduction of Fe(III) by Fe(III)-reducing bacteria in the environment. Here, we report on magnetite formation by biooxidation of Fe(II) coupled to denitrification. This metabolism offers an alternative environmental source of biogenic magnetite.

* Corresponding author. Mailing address: Department of Microbiology, Southern Illinois University, Mailcode 6508, Carbondale, IL 62901. Phone: (618) 453-6132. Fax: (618) 453-8036. E-mail: jcoates{at}micro.siu.edu.

Applied and Environmental Microbiology, June 2001, p. 2844-2848, Vol. 67, No. 6
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.6.2844-2848.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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