Endophytic fungi found in association with Smallanthus sonchifolius (Asteraceae) as resourceful producers of cytotoxic bioactive natural products - Gallo, Margareth B. C.; Chagas, Fernanda O.; Almeida, Marília O.; Macedo, Cláudia C.; Cavalcanti, Bruno C.; Barros, Francisco W. A.; Moraes, Manoel O. de; Costa-Lotufo, Letícia Veras; Pessoa, Cláudia; Bastos, Jairo Kenupp; Pupo, Mônica Tallarico (Journal of Basic Microbiology, 2009)