Ultrastructure of the unusual accessory submandibular gland in the fringe-lipped bat, Trachops cirrhosus

The Anatomical Record
B TandlerC J Phillips

Abstract

The phyllostomid fringe-lipped bat, Trachops cirrhosus, is sui generis (in a family of ca. 138 species) in that it subsists in part on tropical frogs. These amphibians frequently possess highly toxic integument. We examined the salivary glands of this bat to determine if these glands could be the source of protective factors that permit consumption of seemingly unsavory prey. The parotid and principal salivary glands of this bat are similar to homologous glands in other phyllostomids, but the accessory submandibular gland is unique. The accessory submandibular glands of live-trapped T. cirrhosus were fixed and processed for transmission electron microscopy by conventional means. The accessory submandibular gland consists of follicles and ducts. The principal cells of the follicular walls have an abundance of rough endoplasmic reticulum (RER), free ribosomes, and extensive Golgi apparatuses. Typically, these cells have relatively few serous secretory granules. The ells contain collections of peculiar lipid droplets, and some of their mitochondria have dense crystalloids within expanded cristae. A layer of irregular, moderately dense bodies lies immediately subjacent to the luminal plasmalemma; it is not clear if these structures...Continue Reading

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Citations

May 13, 2005·Proceedings. Biological Sciences·Rachel A Page, Michael J Ryan
Apr 14, 2006·The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology·Bernard TandlerCarleton J Phillips
May 18, 2012·Die Naturwissenschaften·Rachel A PageXimena E Bernal

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