The ability of sulfate-reducing bacteria Desulfovibrio desulfuricans Ya-11 i Desulfobacter sp. to use nitrate as electron acceptor
The ability of Desulfovibrio desulfuricans Ya-11 bacteria to use nitrate as terminal electron acceptor was studied. The level of biomass accumulation in the medium with nitrate changed depending on the initial NO3– concentration. At nitrate concentration 5 mM the bacterial biomass was the same as in...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Львівський національний університет імені Івана Франка
2011-09-01
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| Series: | Біологічні студії |
| Subjects: | |
| Online Access: | http://publications.lnu.edu.ua/journals/index.php/biology/article/view/375 |
| Summary: | The ability of Desulfovibrio desulfuricans Ya-11 bacteria to use nitrate as terminal electron acceptor was studied. The level of biomass accumulation in the medium with nitrate changed depending on the initial NO3– concentration. At nitrate concentration 5 mM the bacterial biomass was the same as in the medium with sulfate. The intermediate product of nitrates reduction in D. desulfuricans Ya-11 is nitrite, and the final one – ammonium. High nitrates concentrations in the medium inhibit the process of dissimilatory sulfate reduction. Washed cells of D. desulfuricans Ya-11 fully reduced nitrite of the medium to ammonium. The ability of psychrophyllic sulfate-reducing bacteria Desulfobacter sp. to reduce nitrates at low temperatures is demonstrated. |
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| ISSN: | 1996-4536 2311-0783 |