Structure and function of midgut epithelial cells in culicidae mosquitoes (insecta, diptera)

Hecker, Hermann

doi:10.1007/bf00219894

Cited by 131 publications

(98 citation statements)

References 11 publications

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“…(Felsted et aL, 1973) and a midgut protease inhibitor (Engelmann and Geraerts, 1980) (Lehane, 1976;Hecker, 1977;Rudin and Hecker, 1979;Houk and Hardy, 1982; Bignell et al, 1982;Berner et al, 1983). The small microvesicles containing electron-dense particles released from the crypts of the posterior midgut of honey bees are similar to vesicles reported in the midguts of adult flies (De Priester, 1971) and larval Erinnysis ello (Santos et aL, 1986).…”

Section: Discussionmentioning

confidence: 83%

Age-related changes in midgut ultrastructure and trypsin activity in the honey bee, Apis mellifera

Jimenez¹,

Gilliam²

1989

Apidologie

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Summary — Trypsin-like activity was detected in the epithelial tissue, in the fluid of the ectoperitrophic space, and within the endoperitrophic space of the midgut of adult worker honey bees, Apis mellifera. It was highest in free-flying bees and in caged bees fed pollen. Lower levels occurred in caged bees restricted to sucrose syrup or fed sucrose syrup in addition to either Beltsville Bee Diet or egg albumin. Levels of midgut trypsin activity were dependent on the amount of protein diet consumed. Both diet consumption and trypsin-like activity decreased as the bees aged. Ultrastructural changes in the midgut tissue accompanied this decline in enzymatic activity. In five-day-old pollen-feeding bees, the apical cytoplasm of cells in the posterior midgut contained numerous electronopaque vesicles, and the brush border in the crypts of the distal midgut was composed of short pleomorphic microvilli. Apical discharge from the midgut cells released the opaque vesicles into the midgut lumen. However, in 30-day-old field bees, the number of opaque vesicles and the microvesiculation of the brush border were reduced. Thus, the presence of the endogenously produced endoprotease and the regional variation in cell ultrastructure suggest that the honey bee may rely on countercurrent flow to distribute enzymes and nutrients efficiently throughout the midgut. Apis mellifera— midgut ultrastructure -enzymatic activity -trypsin -age

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Section: Discussionmentioning

confidence: 83%

Age-related changes in midgut ultrastructure and trypsin activity in the honey bee, Apis mellifera

Jimenez¹,

Gilliam²

1989

Apidologie

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“…In mosquitoes (Hecker 1977) and tsetse (Boehringer-Schweizer 1977), the gut endocrine cells have been described as "clear cells," while in fleas (Reinhardt 1976) and in Rhodnius the endocrine cells have a denser cytoplasm. Similarly, the gut endocrine cells described in other hematophagous insects are of the "open" type (Fujita & Kobayashi 1977), having a lumenal surface with a variable brush border of microvilli; this is not the case with Rhodnius, in which the gut endocrine cells are of the "closed" type (Fujita & Kobayashi 1977).…”

Section: Discussionmentioning

confidence: 99%

“…Because of the interrupted mode of feeding common in hematophagous insects, the midgut epithelium has developed into a highly inducible system, undergoing considerable modification in response to a blood meal (BoehringerSchweizer 1977;Hecker 1977;Billingsley & Downe 1983). If the gut endocrine cells of hematophagous insects are involved in regulation of digestion, then these too will probably be induced to change by the blood meal.…”

Section: Discussionmentioning

confidence: 99%

Nondigestive Cell Types in the Midgut Epithelium of Rhodnius Prolixus (Hemiptera: Reduviidae)1

Billingsley

Downe

1986

Journal of Medical Entomology

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Abstract. The ultrastructure of regenerative cells and endocrine cells in the midgut epithelium of mated female Rhodnius prolixus is described. Regenerative cells are numerous, found in all midgut regions, and do not contain any of the normal secretory apparatus of a cell. Endocrine cells are less numerous, restricted to the intestine, and contain prominent Golgi complexes, electron-opaque vacuoles, and intermediate-staining secretory granules. Both cell types rest on the basal lamina of the midgut and are considerably smaller than the normal digestive epithelial cells. The structure of the endocrine cells is compared to those from other insects, and a role for the endocrine cell in the hormonal control of blood meal digestion is postulated.

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“…The anterior or thoracic region is responsible for the absorption of sugar and the formation of a mucous material and the posterior or abdominal region is responsible for the absorption, synthesis, and secretion of digestive enzymes and the peritrophic matrix (Hecker & Brun, 1975;Reinhardt;Hecker, 1977;Rudin & Hecker, 1979;Lehane & Billingsley;Park & Shahabuddin, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Different types of cells that make up the intestinal epithelium of insects have been described (Priester, 1971;Reinhardt;Hecker;Andriè & Tramu, 1985;Glattli et al, 1987;Lehane & Billingsley;Siden-Kiamos & Louis, 2004). However, nothing is known about the epithelial organization of the midgut of Anopheles aquasalis.…”

Section: Introductionmentioning

confidence: 99%

Morphological Aspect of the Midgut of Anopheles aquasalis (Curry, 1932) Insecta: Diptera

Ferreira

Lima²,

Rocha

et al. 2008

Int. J. Morphol.

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SUMMARY:The midgut of adult female Anopheles aquasalis presents a narrow anterior or thoracic region and a distensible posterior or abdominal region constituted by the epithelium formed by a cell layer whose apical portion presents microvilli and the basal portion, a basal labyrinth. The thoracic region revealed heterogeneous cellular staining affinity mainly by the presence of acidic components. The ultrastructural aspect showed columnar cells with the presence of the vesicle, mitochondria, endoplasmic reticulum and secreting cells. The abdominal region of the midgut revealed an irregular epithelium whose cells presented a basophilic cytoplasm and acidophil granules. It was also found secreting and/or basal cells with narrow cytoplasm. The ultrastructural observation of this region demonstrated cells with evident nucleus, endoplasmic reticulum and mitochondria. Larger vesicles and small granules were found distributed throughout the cytoplasm. The basal lamina that supports the epithelium presented a generally irregular aspect and the muscle fibers have longitudinal and circular organization and were found separating the epithelium from the haemocel. This study will contribute to analyses on the vector mosquito-parasite interaction mechanism in this specimen.

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Structure and function of midgut epithelial cells in culicidae mosquitoes (insecta, diptera)

Cited by 131 publications

References 11 publications

Age-related changes in midgut ultrastructure and trypsin activity in the honey bee, Apis mellifera

Age-related changes in midgut ultrastructure and trypsin activity in the honey bee, Apis mellifera

Nondigestive Cell Types in the Midgut Epithelium of Rhodnius Prolixus (Hemiptera: Reduviidae)1

Morphological Aspect of the Midgut of Anopheles aquasalis (Curry, 1932) Insecta: Diptera

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