Journal of Microbiology

1 "Fe(III)-reducer"

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Isolation and Identification of an Anaerobic Dissimilatory Fe(III)-Reducing Bacterium, Shewanella putrefaciens IR-1: Moon-Sik Hyun , Byung-Hong Kim , In-Seop Chang , Hyung-Soo Park , Hyung-Joo Kim , Gwang-Tae Kim , Mi-a Kim , Doo-Hyun Park; J. Microbiol. 1999;37(4):206-212.

Abstract: In order to isolate a Fe(III)-reducer from the natural environment, soil samples were collected from various patty fields and enriched with ferric citrate as a source of Fe(III) under anaerobic condition. Since the enrichment culture was serially performed, the Fe(III)-reduction activity was serially diluted and cultivated on an agar plate containing lactate and ferric citrate in an anaerobic glove box. A Gram negative, motile, rod-shpaped and facultative anaerobic Fe(III)-reducer was isolated based on its highest Fe(III)-reduction activity, Bacterial growth was coupled with oxidation of lactate to Fe(III)-reduction, but the isolate fermented pyruvate without Fe(III), The isolate reduced an insoluble ferric iron (FeOOH) as well as a soluble ferric iron (ferric citrate). Using the BBL crystal enteric/non-fermentor identification kit and 16S rDNA sequence analysis, the isolate was identifice as Shewanella putrefaciens IR-1.

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