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Biodeterioration of Pompeian mural paintings: fungal colonization favoured by the presence of volcanic material residues.
Veneranda, Marco; Prieto-Taboada, Nagore; de Vallejuelo, Silvia Fdez-Ortiz; Maguregui, Maite; Morillas, Hector; Marcaida, Iker; Castro, Kepa; Madariaga, Juan Manuel; Osanna, Massimo.
Afiliación
  • Veneranda M; Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain. marco.veneranda@ehu.eus.
  • Prieto-Taboada N; Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
  • de Vallejuelo SF; Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
  • Maguregui M; Department of Analytical Chemistry, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), PO Box 450, 01080, Vitoria-Gasteiz, Spain.
  • Morillas H; Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
  • Marcaida I; Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
  • Castro K; Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
  • Madariaga JM; Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
  • Osanna M; Unesco Chair on Cultural Landscape and Heritage, University of the Basque Country (UPV/EHU), P.O. Box 450, 01006, Vitoria-Gasteiz, Spain.
Environ Sci Pollut Res Int ; 24(24): 19599-19608, 2017 Aug.
Article en En | MEDLINE | ID: mdl-28681298
This work was focused on the study of the biodegradation processes jeopardizing a mural painting conserved in the basement of Ariadne House (archaeological site of Pompeii, Italy). The fresco stood out for its peculiar state of preservation: the upper part, recovered in 1988, was just barely colonized by microorganisms. On the contrary, the lower part (excavated in 2005) was almost completely covered by extensive biological patinas. The genomic characterization carried out by polymerase chain reaction (PCR) highlighted the presence of seven different fungi strains on the mural surface. Beside, in situ and laboratory analyses were performed with the purpose of identifying the causes of the heterogeneous spatial distribution of the biopatinas. The in situ Raman spectroscopy and energy dispersive X-ray fluorescence (ED-XRF) spectroscopy measurements excluded any link between the heterogeneous colonization and the original materials present in the wall. On the other side, X-ray diffraction (XRD) and scanning electron microscopy (SEM) on microsamples proved the presence of a thin volcanic material layer overlying the lower part of the fresco. Considering that most of the biofilms of the studied mural painting only growth over these residues, it was confirmed the role of volcanic material as a suitable support for biological colonization. Thanks to the obtained results, this research helped to understand more in depth an important degradation pathway threatening the artworks from one of the most important archaeological sites in the world.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Pinturas / Arqueología / Erupciones Volcánicas / Biopelículas / Microbiología Ambiental / Hongos País/Región como asunto: Europa Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: España Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Pinturas / Arqueología / Erupciones Volcánicas / Biopelículas / Microbiología Ambiental / Hongos País/Región como asunto: Europa Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: España Pais de publicación: Alemania