Endophytic fungi from San Juan flora.

CORREA M. L, ; TAPIA A; VAZQUEZ F; PIONTELLI E; FERESIN G.E.

Uspallata, Mendoza. Argentina.

Congreso; XXIII Congreso Anual De La Sociedad De Biología De Cuyo,; 2005

Sociedad De Biología De Cuyo

ENDOPHYTIC FUNGI FROM SAN JUAN FLORA Correa ML, Tapia A, Vazquez F, Piontelli E*, Feresin GE.IBT, Univ Nac San Juan, San Juan; *Univ Valparaíso, Valparaíso,Chile. E-mail: gferesin@unsj.edu.ar Endophytic fungi are able to produce bioactive metabolites. Some of these could be synthesized by the symbiont or by development inside the plant. Isolated endophytic fungi might be used as biocontrol agents. Fungi were isolated from wood, flowers and healthful fruit samples. Plants samples were collected on December 2004 in San Juan Province, Argentina. The collected genuses were: Larrea, Zuccagnia, Senecio, Baccharis, Adesmia, Maytenus, Oxalis and Leucheria. The samples were surface-disinfected with 5% sodium hypochlorite and 70% ethanol. After that, they were placed in PDA (potato dextrose agar) and YMA (yeast-malt-agar) media, supplemented with antibiotics (cefotaxime 50 mg/l) and cultured at 25 .C. Identified microorganisms are kept at the microbial strain collection from the Valparaiso University and from Biotechnology Institute (San Juan University). Isolated endophytic fungi were: Penicillium pupurogenum, P. verrucosum (Leucheria); Aspergillus ochraceus, Alternaria alternata, A. tenuisima, P purpurogenum (Maytenus viscifolia); Sporormiella minima, P. citrinum, P. verrucosum, P. glabrum, A. alternata (Oxalis erythroriza); P. purpurogenum (Adesmia). This is the first report about endophytic fungi isolation from plants of San Juan Province, Argentina. Supported by ANPCyT PICT 102/10-1278, grant to MLC and a UNSJ grant to GEF.