Fine structure of the salivary glands of some horseflies (Diptera, Tabanidae)

Publication Type:Journal Article
Year of Publication:2008
Authors:A. Abro
Journal:Entomologist’s Monthly Magazine
Volume:144
Pagination:243-250
Date Published:October-December
Type of Article:Article
ISBN Number:0013-8908
Keywords:[Norway / Bergen / ]., [Proteins / Glycoprotein content / ] [Blood diet / Blood sucking / ], [Salivary glands / Salivary glands ultrastructure & histology / ], Biochemistry, Cephalic glands, Chrysops relictus, Chrysops relictus (Tabanidae)., Diet, Digestive system, Eurasia, Europe, Haematopota pluvialis, Haematopota pluvialis (Tabanidae)., Hybomitra lundbecki, Hybomitra lundbecki (Tabanidae)., Land, Nutrition, Palaearctic region, zones
Abstract:

The salivary glands consist of a pair of elongated tubules, each with a narrow cuticlelined efferent duct. Anteriorly both ducts unite to a cuticle-lined common channel connected to the pharynx: The secretory part of the glands possesses a short neck of peculiar cells that constitute the passage to the efferent duct. The neck epithelium of Haematopota and Hybomitra has subcuticular dense patches that appear to develop into small intracellular mucous goblets, most conspicuous in Haematopota. The contents of the differentiated goblets stain positively according to the PAS procedure and are believed to hold glycoproteins active in the digestion of blood meals. Corresponding cell organelles are not recorded from the genus Chrysops.

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