Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/14565
Tipo: Artigo
Título: Notes on midgut ultrastructure of Cimex hemipterus (Hemiptera: Cimicidae)
Autor(es): Azevedo, Dihego Oliveira
Neves, Clóvis Andrade
Mallet, Jacenir Reis dos Santos
Gonçalves, Teresa Cristina Monte
Zanuncio, José Cola
Serrão, José Eduardo
Abstract: This work studied the ultrastructure of the midgut cells of Cimex hemipterus Fabricius (Hemiptera: Cimicidae). The midgut of adult insects was analyzed on different days after a bloodmeal, and three anatomical regions with different digestive functions were apparent. In the anterior midgut, the digestive cells had many spherocrystals, lipid inclusions, and glycogen deposits, suggesting a role in water absorption, ion regulation, digestion, and storage of lipids and sugars. The digestive cells in the middle midgut contained secretory granules in the apical cytoplasm, lysosomes, and large amounts of rough endoplasmic reticulum, suggesting that this midgut region was active in digestive processes. The posterior midgut contained digestive cells with secretory vesicles, lysosomes, rough endoplasmic reticulum, and spherocrystals, suggesting digestion and ion/water absorption. Also, there was strong evidence that the posterior midgut may be the major site of nutrient absorption. The hematophagous heteropteran groups share many of these blood digestion mechanisms.
Palavras-chave: Blood digestion
Triatominae
Spherocrystals
Perimicrovillar membranes
Editor: Entomological Society of America
Tipo de Acesso: Open Access
URI: https://doi.org/10.1603/033.046.0304
http://www.locus.ufv.br/handle/123456789/14565
Data do documento: 24-Fev-2009
Aparece nas coleções:Artigos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
watermark.pdftexto completo1,35 MBAdobe PDFThumbnail
Visualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.