Investigation of the connection between the electrophoretic mobility (EPM) of microorganisms and their capability of metal uptake
✍ Scribed by U. Iske; K. Hübner; W. Herold
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 421 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0138-4988
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✦ Synopsis
Abstract
The electrophoretic mobility of microorganisms (EPM) as a measure of their electric surface charge was determined as a function of different milieu conditions with the aid of the “Parmoquant 2” cell electrophoresis apparatus manufactured by CARL ZEISS Jena.
The object of these researches was to examine the influence of the electric surface charge of microorganisms on their metal loading capacity. The results show a direct correlation between the electric surface charge or the EPM of microorganisms and their maximum metal loading capacity. Cells with a high negative surface also posses a high metal binding capacity. On the other side only a negligible metal uptake can be observed at the isoelectric point of the microorganisms (EPM = 0). The method of cell electrophoresis proved suitable to analyze complex interactions between microorganisms and heavy metal ions.