Evolution of holometabola insect digestive systems: physiological and biochemical aspects

Terra, Walter R.

doi:10.1590/s0074-02761987000700007

Cited by 2 publications

(3 citation statements)

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“…Although Wigglesworth (1972) argues that all segments of the gut show peristaltic movements, which serve to mix and transport the contents, the intrinsic muscles are poorly developed round the midgut (Chapman 1998). According to Terra (1987) and Terra and Ferreira (2009), transport is made by water fluxes generated by ion transport. It is docu- The alimentary canal of A. bipunctata Entomological Science (2015) 18, [66][67][68][69][70][71][72][73] mented that the goblet cells of caterpillars create a high concentration of potassium ions in the gut lumen (Chapman 1998;Terra 1990).…”

Section: Discussionmentioning

confidence: 99%

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Characterization of the alimentary canal of the aphidophagous ladybird,Adalia bipunctata(Coleoptera:Coccinellidae): anatomical and histological approaches

Borges

Nóia

Camarinho

et al. 2014

Entomological Science

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The alimentary canal of the two-spot ladybird Adalia bipunctata (Linnaeus) (Coleoptera: Coccinellidae) presents the foregut (stomodeum), the midgut (mesenteron) and the hindgut (proctodeum). The shortest region is the foregut and the longest is the midgut. The relative proportions of the main regions were found to be similar for males and females. In the foregut it was possible to distinguish the pharynx, the esophagus and the proventriculus but no crop. The hindgut is composed of the ileum, rectum and rectal canal. Generally the organ width is similar for males and females, but females presented a wider proventriculus. The epithelium of the foregut varied from squamous to simple cuboidal and columnar. In the midgut the epithelium is simple columnar with goblet and regenerative cells. The epithelium of the hindgut varied from simple cuboidal to squamous. Females presented thicker midgut epithelium whereas males presented thicker epithelium in the esophagus. The anatomy of the alimentary canal of A. bipunctata seems to conform to its carnivorous and recent phylogenetic status within the family Coccinellidae.

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Section: Discussionmentioning

confidence: 99%

“…In fact, the epithelial cells of the midgut caeca do not seem to differ from the rest of the midgut. Therefore there is no evidence that these structures are specialized for circulation of digestive enzymes and water, which are the assumed functions of caeca (Terra , ).…”

Section: Discussionmentioning

confidence: 99%

Characterization of the alimentary canal of the aphidophagous ladybird,Adalia bipunctata(Coleoptera:Coccinellidae): anatomical and histological approaches

Borges

Nóia

Camarinho

et al. 2014

Entomological Science

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“…The presence of mitochondria is related to the transport of potassium ions from the hemolymph to the midgut lumen, and of calcium ions from adjacent columnar cells (Klein & Loffelmann 1991;Moffett et al 1995). Previous studies have shown that the movement of food along the gut is achieved primarily by the water fluxes generated by ion transport rather than by muscular peristalsis (Terra 1987;Terra & Ferreira 2009), whereas goblet cells in caterpillars are able to create high concentrations of potassium ions in the gut lumen (Terra 2003). Therefore, the goblet cells may be related to the movement of food in the midgut.…”

Section: Midgutmentioning

confidence: 99%

Morphological and ultrastructural characterization of the alimentary canal in larvae of Streltzoviella insularis (Staudinger) (Lepidoptera: Cossidae)

Wang

Hao

Shao

et al. 2018

Entomological Research

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Streltzoviella insularis (Staudinger) is an important tree‐boring pest, that primarily damages Sophora japonica (Linnaeus) and Ginkgo biloba (Linnaeus), as well as other common species, at great economic cost to the urban landscape construction industry in China. In the present study, the alimentary canal morphology of S. insularis was observed using light microscopy, and its ultrastructure was investigated by scanning and transmission electron microscopy. The foregut of S. insularis can be divided into the pharynx, esophagus, crop, proventriculus, and cardiac valve. The well‐developed crop forms the longest section of the foregut. It is able to store large amounts of food and is lined with a monolayer of epithelial cells. Many sclerotized microspines occur on the surface of the anterior intima and there are dense spines on the posterior intima of the proventriculus. Epithelial cells of the midgut include columnar cells, goblet cells, and regenerative cells, but endocrine cells are absent. The hindgut consists of the pyloric valve, ileum, and rectum. There is no clear distinction between the ileum and colon. The intima surface of the pyloric valve carries many microspines, whereas the intestinal wall of the rectum is thin with well‐developed rectal pads. The rectal epithelial cells form a squamous monolayer. A cryptonephric excretory system is located in the hindgut. There are six spiral Malpighian tubules, in which a cellular layer on a basement membrane encloses a lumen. These results will provide the basis for further studies of the structure and function in S. insularis larvae.

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Evolution of holometabola insect digestive systems: physiological and biochemical aspects

Abstract: This review takes into account primarily the work done in our laboratory with insects from the major Holometabola orders. Only the most significant data for each insect will be presented and a proposal on the evolution of Holometabola insect digstive systems will be advanced

Cited by 2 publications

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Characterization of the alimentary canal of the aphidophagous ladybird,Adalia bipunctata(Coleoptera:Coccinellidae): anatomical and histological approaches

Characterization of the alimentary canal of the aphidophagous ladybird,Adalia bipunctata(Coleoptera:Coccinellidae): anatomical and histological approaches

Morphological and ultrastructural characterization of the alimentary canal in larvae of Streltzoviella insularis (Staudinger) (Lepidoptera: Cossidae)

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