8 documents found, page 1 of 1
Geomicrobiology of a seawater-influenced active sulfuric acid cave.
D’Angeli, I.M.; Ghezzi, D.; Leuko, S.; Firrincieli, A.; Parise, M.; Fiorucci, A.; Vigna, B.; Addesso, R.; Baldantoni, D.; Carbone, C.; Miller, A.Z.Fetida Cave is an active sulfuric acid cave influenced by seawater, showing abundant microbial communities that organize themselves under three main different morphologies: water filaments, vermiculations and moonmilk deposits. These biofilms/deposits have different cave distribution, pH, macro- and microelement and mineralogical composition, carbon and nitrogen content. In particular, water filaments and vermi...
Biodeterioration of Roman tombs: The role of pigmented actinobacteria
Gonzalez-Pimentel, J.L.; Jurado, V.; Laiz, L.; Miller, A.Z.; Hermosin, B.; Saiz-Jimenez, C.Etruscan and Roman necropolises are cemeteries with different types of burial practices, which are remarkable for their magnificent mural paintings. The conservation of these paintings is difficult, mainly derived from environmental factors and the opening of the tombs to public visits. One of the most complex phenomena observed on these sites is biodeterioration. The Circular Mausoleum tomb (Roman Necropolis o...
An integrated approach for assessing the bioreceptivity of glazed tiles to phot...
Coutinho, M. L.; Miller, A. Z.; Martin-Sanchez, P. M.; Mirao, J.; Gomez-Bolea, A.; Machado-Moreira, B.; Cerqueira-Alves, L.; Jurado, V.A laboratory-based methodology was designed to assess the bioreceptivity of glazed tiles. The experimental set-up consisted of multiple steps: manufacturing of pristine and artificially aged glazed tiles, enrichment of phototrophic microorganisms, inoculation of phototrophs on glazed tiles, incubation under optimal conditions and quantification of biomass. In addition, tile intrinsic properties were assessed to...
Estudo de comunidades fúngicas em arquivos: implicações na conservação e na saúde
Pinheiro, A. C.; Viegas, Carla; Jurado, V.; Sabino, Raquel; Veríssimo, Carlos; Rosado, Laura; Macedo, M. F.A influência da contaminação fúngica para a saúde ambiental e para a conservação do património é o tema premente e actual que suscitou a hipótese de estudo aqui apresentada. Os fungos, dada a sua extrema capacidade de adaptação, podem colonizar diversos materiais - orgânicos ou não - e a sua acção pode ser mecânica, por intermédio das suas hifas, ou química, através dos seus metabolitos. Em termos de conservaçã...
Estudo de Comunidades Fúngicas em Arquivos: Implicações na Conservação e na Saúde
Pinheiro, A.C.; Viegas, C.; Jurado, V.; Sabino, R.; Veríssimo, C.; Rosado, L.; Macedo, M.F.A influência da contaminação fúngica para a saúde ambiental e para a conservação do património é o tema premente e actual que suscitou a hipótese de estudo aqui apresentada. Os fungos, dada a sua extrema capacidade de adaptação, podem colonizar diversos materiais – orgânicos ou não – e a sua acção pode ser mecânica, por intermédio das suas hifas ou química, através dos seus metabolitos.Em termos de conservação ...
Mould and yeast identification in archival settings: preliminary results on the...
Pinheiro, A. C.; Macedo, M. F.; Jurado, V.; Saiz-Jimenez, C.; Viegas, Carla; Brandão, J.; Rosado, L.This project was developed to fully assess the indoor air quality in archives and libraries from a fungal flora point of view. It uses classical methodologies such as traditional culture media – for the viable fungi – and modern molecular biology protocols, especially relevant to assess the non-viable fraction of the biological contaminants. Denaturing high-performance liquid chromatography (DHPLC) has emerged ...
Mould and yeast identification in archival settings: Preliminary results on the...
Pinheiro, Ana Catarina; Macedo, M.F.; Jurado, V.; Saiz-Jimenez, C.; Viegas, Carla; Brandão, João; Rosado, LauraThis project was developed to fully assess the indoor air quality in archives and libraries from a fungal flora point of view. It uses classical methodologies such as traditional culture media e for the viable fungi e and modern molecular biology protocols, especially relevant to assess the non-viable fraction of the biological contaminants. Denaturing high-performance liquid chromatography (DHPLC) has emerged ...
Manganese oxides as biominerals in a granitic subterranean environment
Miller, A.; Dionísio, A.; Braga, M. A. Sequeira; Afonso, M. J.; Jurado, V.; Fernandez-Cortes, A.; Cuezva, S.; Sanchez-Moral, S.; Saiz-Jimenez, C.Black coatings were detected on granite surfaces in groundwater catch work tunnels from Porto city (NW Portugal). XRD, FTIR, Micro-Raman, ICP-MS, TEM-EDS, SEM-EDS and SEM-FIB were the analytical procedures carried out to investigate the origin of the black coatings. In this subterranean environment, the enrichment in metals and other trace elements, such as Mn and Fe, and clay minerals characterize the black mi...