Chemical profile and seasonal variation in glandular trichomes content, herbivory on the leaves and novel constituents of Tithonia diversifolia - Ambrosio, Sérgio R.; Chaves, Juliana S.; Lichston, Juliana E.; Oki, Yumi; Varanda, Elenice Mouro; Costa, Fernando Batista da (Anniversary Conference of the Phytochemical Society of Europe, 2007)