Nature of the anchors of membrane-bound aminopeptidase, amylase, and trypsin and secretory mechanisms in Spodoptera frugiperda (Lepidoptera) midgut cells - Jordão, Beatriz; Capella, Adriana Natalicio; Terra, Walter Ribeiro; Ribeiro, Alberto de Freitas; Ferreira, Clélia (Journal of Insect Physiology, 1999)