Analysis of dark crusts on the church of Nossa Senhora do Carmo in Rio de Janeiro, Brazil, using chemical, microscope and metabarcoding microbial identification techniques
文摘
Pioneer study on use of NGS to identify microorganisms in black crusts on granite buildings. Salt content major driver structuring the stress-resistant communities. Most abundant bacterial group Actinobacteria, then Bacteroidetes and Proteobacteria. Major fungi yeast-like Basidiomycetes and Chloroflexi principal phototrophs. Biodeterioration by microbial discoloration, ion mobilisation and stone penetration.