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Cyanobacteria attacks rocks (CATS): control and preventive strategies to avoid damage caused by cyanobacteria and associated microorganisms in Roman hypogean monuments

AuthorsAlbertano, P.; Hermosín, Bernardo ; Sáiz-Jiménez, Cesáreo ; Sánchez Moral, Sergio
Issue Date2003
PublisherTaylor & Francis
CitationMolecular Biology and Cultural Heritage: 151-162 (2003)
AbstractThe CATS project focuses on the control, prevention and monitoring of cyanobaeteria-dominated biofilms that cause damage to rock surfaees in Roman hypogea. It develops and integrates physical and biotechnologiecal methods intended to limit the growth of microorganisms on valuable archaeological surfaces, and applies analytical methods to monitor the presence and the extent of the microbial damage. As in other hypogea, the developmet of biofilms is favoured by the limited air circulation, the even temperature throug-out the year, and the high level of humidity. Biofilms composed of sciaphilous chroococcal and filamentous cyanobacteria associated with other microorganisms develop thanks to the light gradients that occur in the proximity of entrances and artificial lamps. Terrestrial cyanobacteria and associated microorganisms are the first colonisers of exposed lithic faces and their extensive development is supported by the mineral composition of the substrata and facilitated by the porous nature of the, mostly calcareous, surfaces.
Description12 pages, 6 figures, 1 table. et al.-- Proceedings of the International Congress on Molecular Biology and Cultural Heritage. 4-7, march, 2003, Seville, Spain.
Appears in Collections:(IRNAS) Comunicaciones congresos
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