Metamorphosis in the midgut of bees : proliferation or cellular migration? / Metamorfose do intestino medio de abelhas : proliferação ou migração celular?

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

Bees are holometabolus insects, since they present complete metamorphosis. During the metamorphosis of the insects the gut is completely remodeled. Few studies emphasize aspects of the renewal of the epithelium of bee’s midgut during metamorphosis. Studies that describe digestive cell proliferation are lacking in images of mitosis. This research is a contribution to the understanding of Hymenoptera biology in relation to some aspects of digestive physiology during metamorphosis of social insects. We have established the necessity of increasing the number of cells in the median intestine of Melipona quadrifasciata anthidioides at the end of metamorfosis without having, however, observed mitosis, as was found for Nasutitermes rotundatus (Holmgren) (Isoptera). Possibly the regenerative cells arisen outside the midgut migrated through the basal membrane, to establish themselves in the epithelium. Also, in this study we describe the morphology of the median intestine epithelium, using scanning electron microscopy, showing that only the peritrophic membrane presented differences in the casts studied.

ASSUNTO(S)

cell proliferation bee midgut regeneração (biologia) metamorfose abelha proliferação celular metamorphosis regeneration (biology) intestino medio

ACESSO AO ARTIGO

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