Antitumoral activity of substances isolated from Phomopsis longicolla hobbs, endophytic fungi obtained from red marine algae Bostrychia tenella - Erbert, C.; Lopes, A. A.; Ferreira, E. G.; Costa-Lotufo, Letícia Veras; Lopes, João Luís Callegari; Debonsi, Hosana Maria (International Congress of Pharmaceutical Sciences (CIFARP), 2011)