Mössbauer study of the reduction of synthesized ferrihydrite by the alkaliphilic iron-reducing bacterium Fuchsiella ferrireducens
- Autores: Chistyakova N.I.1, Antonova A.V.1, Gracheva M.A.1, Shapkin A.A.2, Zavarzina D.G.3, Zhilina T.N.3, Rusakov V.S.1
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Afiliações:
- Department of Physics
- Lebedev Physical Institute
- Winogradsky Institute of Microbiology, Biotechnology Research Center
- Edição: Volume 81, Nº 7 (2017)
- Páginas: 895-900
- Seção: Article
- URL: https://journals.rcsi.science/1062-8738/article/view/185140
- DOI: https://doi.org/10.3103/S1062873817070048
- ID: 185140
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Resumo
Samples of biogenic iron minerals obtained during the growth of the anaerobic alkaliphilic ironreducing bacterium Fuchsiella ferrireducens (strain Ζ-7101Т) in the presence of synthesized ferrihydrite used as electron acceptor are studied by 57Fe Mössbauer spectroscopy. Two series of samples, differing by electron acceptor, are analyzed. Ethanol and acetate are used as electron donors in the first and second series, respectively. Mössbauer studies are performed at room temperature and at 82 K. Phases containing ferrous iron (siderite) form in both series, while a magnetically ordered phase (a mixture of hematite and maghemite particles) forms only in the series with ethanol.
Sobre autores
N. Chistyakova
Department of Physics
Autor responsável pela correspondência
Email: nchistyakova@yandex.ru
Rússia, Moscow, 119991
A. Antonova
Department of Physics
Email: nchistyakova@yandex.ru
Rússia, Moscow, 119991
M. Gracheva
Department of Physics
Email: nchistyakova@yandex.ru
Rússia, Moscow, 119991
A. Shapkin
Lebedev Physical Institute
Email: nchistyakova@yandex.ru
Rússia, Moscow, 119991
D. Zavarzina
Winogradsky Institute of Microbiology, Biotechnology Research Center
Email: nchistyakova@yandex.ru
Rússia, Moscow, 119071
T. Zhilina
Winogradsky Institute of Microbiology, Biotechnology Research Center
Email: nchistyakova@yandex.ru
Rússia, Moscow, 119071
V. Rusakov
Department of Physics
Email: nchistyakova@yandex.ru
Rússia, Moscow, 119991
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