All kinds of microbes, including Aspergillus can contribute actively to geological phenomena, and central to many such geomicrobial processes are transformations of metals and minerals.
Microbes have a variety of properties that can effect changes in metal speciation, toxicity and mobility, as well as mineral formation or mineral dissolution or deterioration. Such mechanisms are important components of natural biogeochemical cycles for metals as well as associated elements in biomass, soil, rocks and minerals, e.g. sulfur and phosphorus, and metalloids, actinides and metal radionuclides.
Apart from being important in natural biosphere processes, metal and mineral transformations can have beneficial or detrimental consequences in a human context. Bioremediation is the application of biological systems to the clean-up of organic and inorganic pollution, with bacteria and fungi being the most important organisms for reclamation, immobilization or detoxification of metallic and radionuclide pollutants.
|Biogenic Weathering of Mineral Substrates (Review)|
|Chizhikova et. al. (2016)|
|Oxalate production by fungi: significance in geomycology, biodeterioration and bioremediation|
|G. M. Gadd et. al (2014)|
|Fungi as Geologic Agents|
|Katja Sterflinger (2010)|
|Biohydrometallurgy for Nonsulfidic Minerals: A Review|
|Nalini Jain and D. K. Sharma (2010)|
|Geomicrobiology of Eukaryotic Microorganisms|
|Geoffrey M. Gadd and John A. Raven (2010)|
|Eukaryote-Dominated Biofilms and Their Significance in Acidic Environments|
|Sandra S. Brake & Stephen T. Hasiotis (2010)|
|Bacterial and fungal geomicrobiology: a problem with communities?|
|G. M. GADD (2008)|
|Geoffrey M. Gadd (2007)|
|Vaughan, MJ (Vaughan, Michael J.), Maier, RM (Maier, Raina M.), Pryor, BM (Pryor, Barry M.)||Fungal communities on speleothem surfaces in Kartchner Caverns, Arizona, USA|
|Chen, S (Chen, S.) Lian, B (Lian, B.), Zheng, HY (Zheng, H. Y.), Dong, FQ (Dong, F. Q.)||Sr Isotope Tracing of Differences in the Effects of Microorganisms on Weathering of Calcite and Apatite|
|Wei, Z (Wei, Zhan), Hillier, S (Hillier, Stephen), Gadd, GM (Gadd, Geoffrey M.)||Biotransformation of manganese oxides by fungi: solubilization and production of manganese oxalate biominerals|
|Busquets, Antoni; Fornós, Joan J; Zafra, Freddy; Lalucat, Jorge; Merino, Antoni.||Microbial communities in a coastal cave: Cova des Pas de Vallgornera (Mallorca, Western Mediterranean)|
|Liang X, Hillier S, Pendlowski H, Gray N, Ceci A, Gadd GM.||Uranium phosphate biomineralization by fungi.|