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Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:21:12Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:45:27Z : No. of bitstreams: 1 2-s2.0-21644463973.pdf: 510933 bytes, checksum: 2bff086defa895d26009d29fab48ece8 (MD5) Made available in DSpace on 2014-05-27T11:21:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-12-01 The morphology of the midgut epithelium cells of Anticarsia gemmatalis (Hübner) larvae is described by light and transmission electron microscopy. The midgut of A. gemmatalis is the largest portion of the digestive tract, with three distinct regions: proximal, media and distal. Its wall is formed by pseudostratified columnar epithelial tissue having four cell types: columnar, goblet, regenerative, and endocrine cells. The columnar cells are numerous and long, with the apical portion showing many lengthy microvilli and the basal portion invaginations forming a basal labyrinth. The goblet cells have a large goblet-shaped central cavity delimited by cytoplasmic projections filled with mitochondria. The regenerative cells present electron-dense cytoplasm and few organelles. The endocrine cells are characterized by electron-dense secretory granules, usually concentrated in the cytoplasm basal region. Centro de Microscopia Eletrônica Instituto de Biociências Universidade do Estado de São Paulo, Rubião Junior, CEP 18608-000, Botucatu, SP Departamento de Histologia Centro de Ciências Biológicas Universidade Estadual de Londrina, Londrina, PR Departamento de Morfologia Instituto de Biociências Universidade do Estado de São Paulo/UNESP, Rubião Junior, CEP 18608-000, Botucatu, SP Departamento de Morfologia Instituto de Biociências Universidade do Estado de São Paulo/UNESP, Rubião Junior, CEP 18608-000, Botucatu, SP