Notes on midgut ultrastructure of cimex hemipterus (Hemiptera: Cimicidae).

  • Azevedo D
  • Neves C
  • Mallet J
 et al. 
  • 16

    Readers

    Mendeley users who have this article in their library.
  • 25

    Citations

    Citations of this article.

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.

Author-supplied keywords

  • blood digestion
  • blood-feeding insects
  • composed of small obligatory
  • family is
  • hemiptera
  • heteroptera
  • of vertebrates such as
  • perimicrovillar membranes
  • spherocrystals
  • that are temporary ectoparasites
  • the cimicidae
  • triatominae

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Dihego Oliveira Azevedo

  • Clóvis Andrade Neves

  • Jacenir Reis Dos Santos Mallet

  • Teresa Cristina Monte Gonçalves

  • José Cola Zanuncio

  • José Eduardo Serrão

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free