Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Biofilms on funerary monuments in La Plata cemetery: study of crypts with historical and architectural interest
Year:2008
Research Areas
  • Microbiology
Information
Abstract
Cemeteries are part of the cultural heritage of urban communities. They also have architectural value because of the presence of important funerary monuments that must be subject to conservation, which in turn means the need to study the biological agents that impact and affect them. The growth and development of these agents will depend on factors such as light, temperature and humidity. Therefore, it is assumed that monuments will be more or less susceptible to biofilm formation and biological attack according to their exposition. The goal of this contribution is to assess the development of biofilms on funerary monuments in La Plata (Argentina) cemetery with different structural compositions and to study the influence of different factors such as light, temperature, humidity and wind on biofilm growth. Samples of the biofilm adhered to monuments were collected and analyzed by conventional microbiological techniques, and bacteria were also identified by PCR and 16S rDNA sequencing. For chemical analyses of structural materials, samples were observed under Scanning Electron Microscopy (SEM) and analyzed with X-ray dispersion analysis (EDX). "Pseudomonas putida", "Pseudomonas" sp. and "Bacillus cereus" were identified. We also found "Caloplaca citrina", "Xanthoria fallax", and "Lecanora albescens" mainly on cement, mortar and plaster. The same species colonized granite. Cyanobacteria of order Chroococcales and Bdelloid rotifers were also recorded. Cement materials, sandstone and calcareous rocks, were all susceptible to biodeterioration caused by acids produced by microbial activity.
International
Si
Congress
IBBS-14, 14th International Biodeterioration and Biodegradation Symposium
960
Place
S. Alessio Siculo, Messina, Italy
Reviewers
Si
ISBN/ISSN
0964-8305
Start Date
06/10/2008
End Date
11/10/2008
From page
77
To page
77
IBBS-14 Abstracts Book
Participants
  • Participante: Patricia S. Guiamet (Universidad Nacional de La Plata, Argentina)
  • Participante: Sandra Gómez de Saravia (Universidad Nacional de La Plata, Argentina)
  • Autor: Ana Maria Garcia Ruiz (UPM)
  • Participante: Vilma Rosato (Universidad Nacional de La Plata, Argentina)
  • Autor: Diego Alejandro Moreno Gomez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Inv. en Bioingeniería y Materiales (BIO-MAT)
  • Departamento: Ingeniería y Ciencia de los Materiales
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