Microbial ecology and geomicrobiology of lithic substrate (ECOGEO)

ECOGEO completes an integrated and multidisciplinary research of the microbiota colonizing the lithic substrate, particularly from poliextreme environments. Our studies involve not only the analysis of diversity but also microhabitat physical-chemical and geochemical characterization, substrate bioreceptivity, and the dynamics of lithic microbial ecosystems. Microscopy and molecular biology are combined for genetic and ultra-structural characterization of diversity and its organization of their components. Micro-analytical strategies reveal microorganism-mineral relationships and the presence of biomarkers and microbial fossils. The study of microbial ecosystems in monumental stones allows us to diagnose biodeterioration processes, as well as a possible control. Our studies, with multiple international connections, contribute to determine the ecological role of lithic ecosystems and participation in biogeochemical cycles, as well as their capacity of response to global change