ANTIMICROBIAL ACTIVITY OF EXTRACTS FROM PLANTS ENDEMIC TO THE CANARY-ISLANDS

The antibacterial and antifungal activities of several extracts and fr actions from four endemic Canary plants, Ceropegia fusa Bolle (Asclepi adaceae), Hypericum reflexum L. f. (Hypericaceae or Guttiferae), Mayte nus canariensis (loes) Kunkel & Sunding (Celastraceae) and Plocama pen dula Ait. (Rubiaceae), were determined. The antimicrobial study was ca rried out by the dilution and diffusion methods and the results showed good antibacterial activity but no antifungal activity. The MeOH extr act from Hypericum reflexum was active against gram-positive bacteria Bacillus cereus, Bacillus subtilis, Micrococcus luteus, Staphylococcus aureus, Staphylococcus epidermidis and against the gram-negative bact erium Klebsiella pneumoniae.