Transformation and Precipitation of Toxic Metals by Pseudomonas maltophilia
Abstract
The aims of this research are to study each of the various molecular mechanisms whereby toxic metal cations and oxyanions are chemically transformed by Pseudomonas maltophilia strain OR-02. The research effort for the current year has focused on the microbial-dependent transformations of selenite, tellurite, lead, and chromate. The reduction of selenite and tellurite to their insoluble elemental forms appeared to be mediated by an intracellular glutathione reductase that utilized the spontaneously-formed bis(glutathio)Se or bis(glutathio)Te, respectively, as pseudosubstrates. The biomolecules responsible for the extracellular transformation of lead and the reduction of chromate to Cr(III) are currently under investigation. This project could provide useful information toward the eventual exploitation of P. maltophilia and related organisms for the removal of toxic metal wastes from selected, heavily polluted sites.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1990
- Accession Number
- ADA224329
Entities
People
- Robert Blake Ii
Organizations
- Meharry Medical College