The larval midgut of Anticarsia gemmatalis (Hübner) (Lepidoptera: Noctuidae): light and electron microscopy studies of the epithelial cells

Brazilian Journal of Biology

S. M. Levy¹  A. M. F. Falleiros¹  E. A. Gregório¹  N. R. Arrebola¹  L. A. Toledo¹ 

[1] ,Universidade do Estado de São Paulo Centro de Microscopia Eletrônica Instituto de BiociênciasBotucatu SP ,Brazil

关键词: Lepidoptera;    velvetbean caterpillar;    morphology;    ultrastructure;    midgut;    Lepidoptera;    lagarta-da-soja;    morfologia;    ultra-estrutura;    intestino médio;   

DOI  :  10.1590/S1519-69842004000400010

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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