PARTICIPANTS UNIVERSITY OF ROME “Tor Vergata” (I), Department of Biology

1. CATS Cyanobacteriaattack rocks: control and preventive strategies to avoid damage caused by cyanobacteria and associated microorganisms in Roman hypogean monuments • OBJECTIVES • to characterise the geological, geo and hydrochemical, and physical environment of rocks unaffected or colonised by cyanobacterial communities inside Roman hypogea, and to evaluate possible preferences of cyanobacteria and associated microorganisms for specific lithologies; • to describe the architecture and functioning of biofilms built by cyanobacteria and associated microorganisms on different types of lithic surfaces; • to ascertain the most critical physical, chemical and biological factors that control colonisation of rock surfaces; • to assess and quantify the damage caused by cyanobacterial biofilms to different types of surface; • to develop new physical methods to control and prevent biofilm growth using wavelengths in the visible part of the light spectrum that are, at best, poorly used by photosynthesis; • to identify siderophores and cell-to-cell signalling biomolecules and experimentally to test their potential to interfere with biofilm development; • to develop an innovative monitoring method using a multiparametric microsensor device for the measurement of biogeochemical parameters on endangered rock surfaces; • to test the response and expectation of citizens to the innovative strategies proposed. SAMPLING SITES CATACOMBS OF St. CALLISTUS (Rome, Italy) CATACOMBS OF DOMITILLA (Rome, Italy) CAVES OF BATS (Zuheros, Spain) MICROORGANISMS ANAEROBS / S-, N-AUTOTROPHS HETEROTROPHS ACTINOMYCETES/CORYNEFORMS FUNGI CYANOBACTERIA / ALGAE AIRBORNE MICROORGANISMS • PARTICIPANTS • UNIVERSITY OF ROME “Tor Vergata” (I), Department of Biology • UNIVERSITY OF ROME “Tor Vergata” (I), Department of Chemical Sciences and Technologies • COUNCIL FOR SCIENTIFIC RESEARCH (ES), Institute of Natural Resources and Agrobiology • UNIVERSITY OF BARCELONA (ES), Department of Botany, Faculty of Pharmacy • UNIVERSITY OF MESSINA (I), Department of Microbiological, Genetic and Molecular Sciences • HANS-KNÖLL-INSTITUTE FOR NATURAL PRODUCT RESEARCH (DE), Department of Molecular Natural Product Research • VTT BIOTECHNOLOGY (FI), Microbiology • UNIVERSITY OF SWANSEA (UK), School of Biological Sciences • IDRONAUT S.r.l. (I) • PONTIFICIA COMMISSIONE DIARCHEOLOGIA SACRA (CdV) CONTACTS: P. Albertano, tel. +39-06-72594859, fax +39-06-2023500, e-mail: albertano@uniroma2.it