Microbial communities on deteriorated artistic tiles from Pena National Palace (Sintra, Portugal)

Coutinho, Mathilda L.; Miller, Ana Z.; Gutierrez-Patricio, Sara; Hernández-Mariné, Mariona; Gómez-Bolea, Antonio; Candelera, Miguel A. Rogerio; Philips, Alan J.L.; Jurado, Valme; Sáiz‐Jiménez, Cesáreo; Macedo, Maria Filomena

doi:10.1016/j.ibiod.2012.05.028

Cited by 45 publications

(41 citation statements)

References 37 publications

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“…However, lead is toxic to living organisms and the presence of microbial growth on lead‐rich substrates could be unexpected. Yet, the analyzed tile panel was severely colonized, and other studies have shown that glazes can be colonized by dense biofilms whenever exposed to certain outdoor environments (Giacomucci et al ., ; Coutinho et al ., ). Specific environmental factors, such as cool temperatures, high relative humidity, moderate solar irradiance, shelter from direct rain and surrounding vegetation seem to allow the settlement of microorganisms on ceramic materials (Coutinho et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…Yet, the analyzed tile panel was severely colonized, and other studies have shown that glazes can be colonized by dense biofilms whenever exposed to certain outdoor environments (Giacomucci et al ., ; Coutinho et al ., ). Specific environmental factors, such as cool temperatures, high relative humidity, moderate solar irradiance, shelter from direct rain and surrounding vegetation seem to allow the settlement of microorganisms on ceramic materials (Coutinho et al ., ). In addition, some microorganisms can develop in the presence of elements that are considered to be toxic, using survival strategies such as formation of insoluble compounds or EPS (Sayer et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…To our knowledge, it has not been reported on cultural heritage assets or on any inorganic building material. In contrast, the chlorophyta Oocystis solitaria was previously identified on glazed tiles from Pena National Palace in Sintra, Portugal, but with very low similarity to the mentioned sequence (Coutinho et al ., ) (Table ). The cyanobacterium Iphinoe sp., identified on the nontreated biofilm, was reported in Greek and Spanish caves (Lamprinou et al ., ).…”

Section: Discussionmentioning

confidence: 99%

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A multiproxy approach to evaluate biocidal treatments on biodeteriorated majolica glazed tiles

Miller

Martin‐Sanchez

Mirão

et al. 2016

Environmental Microbiology

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The Fishing House located on the grounds of the Marquis of Pombal Palace, Oeiras, Portugal, was built in the 18th century. During this epoch, Portuguese gardens, such as the one surrounding the Fishing House, were commonly ornamented with glazed wall tile claddings. Currently, some of these outdoor tile panels are covered with dark colored biofilms, contributing to undesirable aesthetic changes and eventually inducing chemical and physical damage to the tile surfaces. Phylogenetic analyses revealed that the investigated biofilms are mainly composed of green algae, cyanobacteria and dematiaceous fungi. With the aim of mitigating biodeterioration, four different biocides (TiO nanoparticles, Biotin T, Preventol RI 80 and Albilex Biostat ) were applied in situ to the glazed wall tiles. Their efficacy was monitored by visual examination, epifluorescence microscopy and DNA-based analysis. Significant changes in the microbial community composition were observed 4 months after treatment with Preventol RI 80 and Biotin T. Although the original community was inactivated after these treatments, an early stage of re-colonization was detected 6 months after the biocide application. TiO nanoparticles showed promising results due to their self-cleaning effect, causing the detachment of the biofilm from the tile surface, which remained clean 6 and even 24 months after biocide application. © 2013 Society for Applied Microbiology and John Wiley & Sons Ltd.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

A multiproxy approach to evaluate biocidal treatments on biodeteriorated majolica glazed tiles

Miller

Martin‐Sanchez

Mirão

et al. 2016

Environmental Microbiology

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“…In the LSU phylogeny Devriesia imbrexigena clusters in one of these lineages, but not with the typical cluster of soil-inhabiting, heat resistant strains. In the nutrient-poor habitat where D. imbrexigena was found it seems to derive nutrition by parasitizing algae that colonise tiles (Coutinho et al 2012). …”

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confidence: 99%

Fungal Planet description sheets: 128–153

Crous¹,

Shivas²,

Wingfield³

et al. 2012

Pers - Int Mycol J

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Novel species of microfungi described in the present study include the following from Australia: Catenulostroma corymbiae from Corymbia, Devriesia stirlingiae from Stirlingia, Penidiella carpentariae from Carpentaria, Phaeococcomyces eucalypti from Eucalyptus, Phialophora livistonae from Livistona, Phyllosticta aristolochiicola from Aristolochia, Clitopilus austroprunulus on sclerophyll forest litter of Eucalyptus regnans and Toxicocladosporium posoqueriae from Posoqueria. Several species are also described from South Africa, namely: Ceramothyrium podocarpi from Podocarpus, Cercospora chrysanthemoides from Chrysanthemoides, Devriesia shakazului from Aloe, Penidiella drakensbergensis from Protea, Strelitziana cliviae from Clivia and Zasmidium syzygii from Syzygium. Other species include Bipolaris microstegii from Microstegium and Synchaetomella acerina from Acer (USA), Brunneiapiospora austropalmicola from Rhopalostylis (New Zealand), Calonectria pentaseptata from Eucalyptus and Macadamia (Vietnam), Ceramothyrium melastoma from Melastoma (Indonesia), Collembolispora aristata from stream foam (Czech Republic), Devriesia imbrexigena from glazed decorative tiles (Portugal), Microcyclospora rhoicola from Rhus (Canada), Seiridium phylicae from Phylica (Tristan de Cunha, Inaccessible Island), Passalora lobeliae-fistulosis from Lobelia (Brazil) and Zymoseptoria verkleyi from Poa (The Netherlands). Valsalnicola represents a new ascomycete genus from Alnus (Austria) and Parapenidiella a new hyphomycete genus from Eucalyptus (Australia). Morphological and culture characteristics along with ITS DNA barcodes are also provided.

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“…Dissolution of ceramic matrix constituents tends to increase the capillary porosity of the tiles and consequently renders them more vulnerable to other forms of attack such as frost, wetting, and drying [3][4][5]. Moreover, the colonization of ceramic tiles by microorganisms may contribute to their deterioration [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Microbiological and compositional features of green stains in the glaze of the Portuguese “Great View of Lisbon” tile panel

et al. 2015

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The ''Great View of Lisbon'' is one of the most remarkable blue-and-white Portuguese tile panels, which depicts the city before the tragic earthquake of 1755. This panel presents visible colored alteration in the glaze of tiles both from the exhibition and the depository of the Museu Nacional do Azulejo (Portugal). This work is a contribution to identify the origin of green stains in the glaze by using microbiological techniques, scanning electron microscopy with back-scattered electron imaging (SEM-BSE), Raman spectroscopy, and proton-induced X-ray emission (PIXE). The microbiological assays showed that the filamentous fungi were detected only at a frequency \10 % of the microbiota of tiles surface, and the microbial entities from the green stains cultures were identified as Aspergillus fumigatus by molecular biology techniques. However, no microorganisms or other biological elements were found by SEM-BSE in the green stains. Raman spectroscopy and PIXE results showed that the green stains appear to be related with the presence of chromium atoms in the outer part of the glaze. Eskolaite, a ''green pigment'' used before 1850 AD was clearly identified by Raman spectroscopy in the darker green stains. Nevertheless, no chromium oxide signatures were identified in the lighter green stains by Raman spectroscopy.

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Microbial communities on deteriorated artistic tiles from Pena National Palace (Sintra, Portugal)

Cited by 45 publications

References 37 publications

A multiproxy approach to evaluate biocidal treatments on biodeteriorated majolica glazed tiles

A multiproxy approach to evaluate biocidal treatments on biodeteriorated majolica glazed tiles

Fungal Planet description sheets: 128–153

Microbiological and compositional features of green stains in the glaze of the Portuguese “Great View of Lisbon” tile panel

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