Publicação: Comparative study of the histology, histochemistry and ultramorphology of the proventriculus in the cephalotini tribe (Hymenoptera: Formicidae)
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The use of optical microscopy and scanning electron microscopy propitiated the comparative examination of the nature of the histology, histochemistry and ultramorphology of the proventriculus bulb of Cephalotes atratus, C. clypeatus and C. pusillus. This portion of the digestive tract possesses highly sclerotized cuticular projections which act in the selection of victuals. A layer of amorphous material with mucous characteristics is present over the cuticle projections. That layer seems to optimize the efficiency of the proventriculus in the selection of food for social function in the colony (trophallaxis). More details of the characteristics of this structure are described in this study.
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Ants, Cephalotini tribe, Histochemistry, Proventriculus, Ultramorphology, Aves, Cephalotes atratus, Cephalotini, Electron (bird), Formicidae, Hymenoptera
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Inglês
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Sociobiology, v. 46, n. 1, p. 185-193, 2005.
