Environmental Microbe-Metal Interactions
Взаимодействия микроорганизмов и металлов в окружающей среде
2000-05-12
SCID: 54.1/6y2j6k6a
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Acidophilic iron-respiring bacteriaBacterial surface-mediated mineral formationBiodegradation of synthetic chelating agentsBiogeochemical cycling of iron and manganeseBioremediation of radioactive metalsBiosorption for heavy metal removalDissimilatory Fe(III) reductionDissimilatory Mn(IV) reductionDissimilatory selenate and arsenate reductionFungal influence on metal and metalloid mobilityMagnetotactic bacteria and magnetic iron mineral biomineralizationMicrobial chromate reductionMicrobial iron oxidation (Fe(II) to Fe(III)) at circumneutral pHMicrobial mercury reductionMicrobially influenced corrosion of steelSiderophores and iron oxide dissolutionTrace metal–phytoplankton interactions
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Abstract (AI)
Part I. Biogeochemical Cycling of Iron and Manganese 1. Dissimilatory Fe(III) and Mn(IV) Reduction 2. Microbial Oxidation Fe(III) and Mn(II) at Circumneutral pH 3. Phylogenetic and Biochemical Diversity Among Acidophilic Bacteria that Respire on Iron 4. Trace Metal-Phytoplankton Interactions in Aquatic Systems 5. Biologically Controlled Mineralization of Magnetic Iron Minerals by Magnetotactic Bacteria 6. The Role of Siderophores in Iron Oxide Dissolution 7. Microbially Influenced Corrosion of Steel Part II. Microbial Ineractions with Toxic Metals-Biomineralization and Bioremediation 8. Microbial Mercury Reduction 9. Dissimilatory Reduction of Selenate and Arsenate in Nature 10. Microbial Chromate Reduction 11. Influence of Fungi and Environmental Mobility Metals and Metalloids 12. Bacterial Surface-Mediated Mineral Formation 13. Bioremediation of Radioactive Metals 14. Biosorption Process for Heavy Metal Removal 15. Biodegradation of Synthetic Chelating Agents
Key Findings
1
Acidophilic bacteria that respire on iron exhibit phylogenetic and biochemical diversity with distinct adaptations.
2
Dissimilatory reduction of Fe(III) and Mn(IV) is a major microbial pathway in biogeochemical cycling of iron and manganese.
3
Fungi and bacterial surface-mediated processes, plus biosorption and biodegradation of chelating agents, affect environmental mobility and removal of heavy metals and metalloids.
4
Microbes mediate formation of magnetic iron minerals (magnetite) via biologically controlled mineralization by magnetotactic bacteria.
5
Microbial oxidation of Fe(II) and Mn(II) occurs at circumneutral pH, driven by diverse microbial processes.
6
Microorganisms contribute to microbially influenced corrosion of steel and to biomineralization/bioremediation of toxic metals including mercury, selenate, arsenate, chromate, and radioactive metals.
7
Siderophores play a key role in dissolving iron oxides, influencing iron bioavailability.
Research Object
Environmental microbe–metal interactions in natural and engineered systems
Research Subject
Biogeochemical processes and mechanisms by which microbes mediate transformation, mobilization, immobilization, and remediation of metals and metalloids (e.g., Fe, Mn, Hg, Se, As, Cr, radioactive and heavy metals) including reduction/oxidation, biomineralization, siderophore-mediated dissolution, biosorption, and microbially influenced corrosion
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2000-05-12
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