Cellular localisation of aminopeptidase in the midgut of Rhodnius prolixus St�l (Hemiptera:Reduviidae) during blood digestion

Perimicrovillar membranes promote hemozoin formation into Rhodnius prolixus midgut

“…The PMM from the midgut of insects have been described as a structures that assist in the compartmentalization of digestion (Houseman and Downe, 1983;Billingsley and Downe, 1985, 1986, 1988Terra, 1990;Silva et al, 1995;Terra et al, 2006), a role played by the peritrophic membranes lost by the ancestor of the whole order Hemiptera, supposed to have been a sap-sucker insect similar to a primitive extant, Auchenorrhyncha (Goodchild, 1966). In addition, these membranes play a crucial role in the absorption of nutrients in hemipterans (Terra, 1988;Terra and Ferreira, 1994).…”

On the physico-chemical and physiological requirements of hemozoin formation promoted by perimicrovillar membranes in Rhodnius prolixus midgut

“…Many distinct roles have been proposed for PMVM, including the compartimentalization of the digestive process (Houseman and Downe, 1983;Billingsley and Downe, 1983, 1985Ferreira et al, 1988;Terra, 1990;Terra and Ferreira, 1994;Terra et al, , 2006, immobilization of digestive enzymes to avoid excretion (Cristofolletti et al, 2003) and amino acid absorption (Terra, 1988). PMVM are also implicated in Trypanosoma cruzi epimastigote multiplication and development in triatomines Gonzalez et al, 1989;Gonzalez and Garcia, 1992) and it also acts as a physical and chemical protection against toxic products of blood digestion (Oliveira et al, 1999).…”

Notes on Midgut Ultrastructure of C<I>imex hemipterus</I> (Hemiptera: Cimicidae)

“…Midgut structural analyses of some hematophagous insects have contributed to the understanding of cellular modiÞcations during feeding and digestion (Brown 1980;Billingsley and Downe 1985;Billingsley 1988Billingsley , 1990Okuda et al 2002;Albuquerque-Cunha et al 2004). For disease transmission, the midgut is a key locale for parasite and vector interactions (Kollien et al 1998, Oliveira andDe Souza 2001).…”