SECONDARY METABOLITES: APPLICATIONS ON CULTURAL HERITAGE

Biological sciences and related bioͲtechnology play a very important role in research projects concerning protection and preservation of cultural heritage for future generations. In this work secondary metabolites of Burkholderia gladioli pv. agaricicola (Bga) ICMP 11096 strain and crude extract of glycoalkaloids from Solanaceae plants, were tested against a panel of microorganisms isolated from calcarenite stones of two historical bridges located in Potenza and in Campomaggiore (Southern Italy). The isolated bacteria belong to Bacillus cereus and Arthrobacter agilisspecies, while fungi belong to Aspergillus, Penicillium, Coprinellus, Fusarium, Rhizoctonia and Stemphylium genera. Bga broth (unfiltered) and glycoalkaloids extracts were able to inhibit the growth of all bacterial isolates. Bga culture was active against fungal colonies, while Solanaceae extract exerted bioͲactivity against Fusarium and Rhizoctonia genera