Morphology of a novel glandular epithelium lining the infrabuccal cavity in the ant Monomorium pharaonis (Hymenoptera, Formicidae) |
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Authors: | Eelen Dieter Børgesen Lisbeth W Billen Johan |
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Affiliation: | aZoological Institute, University of Leuven, Naamsestraat 59, B-3000 Leuven, Belgium;bBiological Institute, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark |
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Abstract: | A novel glandular epithelium lining the infrabuccal cavity and anterior pharynx is described in both workers and queens of the pharaoh's ant Monomorium pharaonis. The infrabuccal cavity, connected with the buccal tube, forms a ventral outgrowth of the anterior pharynx, and as such displays the tegumental lining with a cuticle and an epithelial layer. In its dorsal region, the cavity's epithelium reaches a thickness of approx. 11–12 μm in both workers and queens, which is considerably thicker than the epithelium lining the rest of the infrabuccal cavity. Also the possible role of the infrabuccal gland is discussed. |
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Keywords: | Ultrastructure Exocrine glands Ants |
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