caa a22 4500 475783905 CHVBK 20180406123652.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1023/A:1008106715148 doi (NATIONALLICENCE)springer-10.1023/A:1008106715148 Bioactivity in free-living and symbiotic cyanobacteria of the genus Nostoc [Elektronische Daten] [Raffaella Piccardi, Andrea Frosini, Mario Tredici, Maria Margheri] Fifty cyanobacterial strains from different habitats(symbioses, soil, fresh and marine waters) belongingto the genus Nostoc were cultured and tested forbioactivity. Thirty-seven strains were isolated in ourlaboratory, the remaining were supplied by officialculture collections. All the organisms were grownunder controlled laboratory conditions. The biomasseswere lyophilised and extracted with ethanol:water toobtain a hydrophilic extract and then withdichloromethane:isopropanol to obtain a lipophilicextract. Both crude extracts were tested forantifungal (against Penicillium expansum andRhizoctonia solani) and antibacterial activity(against Agrobacterium vitis, Escherichiacoli and Staphylococcus epidermidis), and fortoxicity against Artemia salina nauplii.Twenty-four strains showed activity against at leastone of the target organisms. Bioactivity was equallydistributed between lipophilic and hydrophilicextracts, and was mostly directed against fungi (15strains) and Artemia nauplii (12 strains);antibacterial activity was less frequent (8 strains).The presence of bioactivity was independent of thestrain origin. Kluwer Academic Publishers, 2000 antifungal and antibacterial compounds nationallicence bioactivity nationallicence cyanobacteria nationallicence cytotoxicity nationallicence Nostoc nationallicence Piccardi Raffaella Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut Frosini Andrea Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut Tredici Mario Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut Margheri Maria Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut Journal of Applied Phycology Kluwer Academic Publishers 12/3-5(2000-10-01), 543-547 0921-8971 12:3-5<543 2000 12 10811 https://doi.org/10.1023/A:1008106715148 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008106715148 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Piccardi Raffaella Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut NATIONALLICENCE 700 1- Frosini Andrea Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut NATIONALLICENCE 700 1- Tredici Mario Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut NATIONALLICENCE 700 1- Margheri Maria Dipartimento di Biotecnologie Agrarie, Università di Firenze and Centro di Studio dei Microrganismi Autotrofi, CNR, P.le delle Cascine, 24-50144, Firenze, Italy aut NATIONALLICENCE 773 0- Journal of Applied Phycology Kluwer Academic Publishers 12/3-5(2000-10-01), 543-547 0921-8971 12:3-5<543 2000 12 10811 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer