Andrea Geißler

Prokaryotic microorganisms in uranium mining waste piles and their interactions with uranium and other heavy metals

Dokumente und Dateien

Hinweis

Bitte nutzen Sie beim Zitieren immer folgende Url:

http://nbn-resolving.de/urn:nbn:de:bsz:105-5486188

Kurzfassung in Englisch

The influence of uranyl and sodium nitrate under aerobic and anaerobic conditions on the microbial community structure of a soil sample from the uranium mining waste pile Haberland in Germany was studied by using the 16S rRNA gene retrieval. The results demonstrate a shifting in the bacterial populations depending on the treatment, whereas the archaeal community was changed independently of the treatment. By using the nitrate reductase gene (narG) as a functional marker, it was additionally demonstrated that some of the bacteria stimulated possess the membrane-bound nitrate reductase. In addition, two Arthrobacter strains were isolated from the studied uranium mining waste pile, which tolerate relatively high concentrations of uranium and heavy metals. These strains are able to precipitate lead as lead sulphide (galena) or lead phosphate mineral phase (pyromorphite) depending on their physiological state and to accumulate uranium intracellularly. The results demonstrate a microbial community in the uranium mining waste pile Haberland, which is able to influence the fate of uranium.

weitere Metadaten

Schlagwörter
(Deutsch)
Erzgebirge, Johanngeorgenstadt <Region>, Uranbergbau, Halde, Bakterien, Biogeochemie, Sachsen, Bodenbiologie, Uran, Schwermetall, Prokaryonten, Mikroorganismus
Schlagwörter
(Englisch)
microbial diversity, narG, microbial interations with uranium and heavy metals
DDC Klassifikation620
RVK KlassifikationZK 3790
Institution(en) 
HochschuleTU Bergakademie Freiberg
FakultätChemie und Physik
BetreuerProf. Dr. Michael Schlömann
Dr. Sonja Selenska-Pobell
GutachterProf. Dr. Michael Schlömann
Prof. Dr. Karsten Pedersen
Dr. Sonja Selenska-Pobell
DokumententypDissertation
SpracheEnglisch
Tag d. Einreichung (bei der Fakultät)05.12.2006
Tag d. Verteidigung / Kolloquiums / Prüfung11.05.2007
Veröffentlichungsdatum (online)23.07.2009
persistente URNurn:nbn:de:bsz:105-5486188

Hinweis zum Urheberrecht

Diese Website ist eine Installation von Qucosa - Quality Content of Saxony!
Sächsische Landesbibliothek Staats- und Universitätsbibliothek Dresden