A biosynthetic pathway of sesquiterpene lactones in Smallanthus sonchifolius and their localization in leaf tissues by MALDI imaging - Lopes, Adriana A.; Pina, Edieidia S.; Silva, Denise B.; Pereira, Ana Maria S.; Silva, Maria Fátima das G. F. da; Costa, Fernando Batista da; Lopes, Norberto Peporine; Pupo, Mônica Tallarico (Chemical Communications, 2013)