Studies on water and ion transport in homopteran insects: Ultrastructure and cytochemistry of the cicadoid and cercopoid hindgut
1973; Elsevier BV; Volume: 5; Issue: 4 Linguagem: Inglês
10.1016/s0040-8166(73)80052-7
ISSN1532-3072
AutoresA.T. Marshall, W. W. K. Cheung,
Tópico(s)Lepidoptera: Biology and Taxonomy
ResumoThe hindgut of cicadoid and cercopoid insects consists of a very long ileum and a relatively short rectum. The ileum is a single cell epithelium comprising several large primary cells between which are small secondary cells. Primary cells are packed with spherical mitochondria and the apical surface of the cells is extensively infolded to form leaflets, whilst the secondary cells are relatively unspecialized. An ATPase appears to be associated with the apical leaflets and small basal infoldings. These cells are presumed to be engaged in ion reabsorption and the formation of a hypoosmotic urine. It is suggested that apical leaflets may be a common feature of all cells concerned with ion reabsorption in the insect hindgut. The cells of the rectum do not appear to be specialized for either ion or water transport and the function of this organ appears to be urine storage.
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