In the Geomicrobiology Group, we carry out research on the geoactive properties of microorganisms in order to understand their importance in key biosphere processes and their applied potential. The prime focus is on metal-mineral transformations with most research under the heading of geomycology, the roles of fungi as geoactive agents. We are particularly interested in understanding physiological and morphological responses to toxic metals and mineral substrates, mechanisms of mineral dissolution, and the formation of novel mycogenic biominerals, especially carbonates, phosphates, oxides and oxalates. Research of applied significance that builds on our fundamental research includes the application of metal-mineral-microbe transformations for bioremediation of metals, metalloids and radionuclides, nuclear decommissioning, biofertilizers (phosphate release), and the production of mineral-based biomaterials. We are also interested in the biodeterioration of rock and mineral-based structural materials including concrete and cultural artefacts, as well as biocorrosion of metals. Research on the functional consequences and mathematical modelling of fungal growth in heterogeneous environments is carried out in collaboration with Dr Fordyce Davidson, Division of Mathematics.