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Title: Paramphistomum cervi: Surface topography of the tegument of adult fluke
Authors: Panyarachun B.
Sobhon P.
Tinikul Y.
Chotwiwatthanakun C.
Anupunpisit V.
Anuracpreeda P.
Keywords: animal tissue
body surface
controlled study
eukaryotic flagellum
functional morphology
Paramphistomum cervi
parasite localization
priority journal
scanning electron microscopy
sensory receptor
structure analysis
surface property
worm tegument
ruminant stomach
Paramphistomum cervi
Microscopy, Electron, Scanning
Issue Date: 2010
Abstract: Adult Paramphistomum cervi or rumen fluke are pear-shaped, slightly concave ventrally and convex dorsally. The worm measures about 5-13. mm in length and 2-5. mm in width across the mid-section. As observed by scanning electron microscopy (SEM), the tegumental surface in all part of the body, appears highly corrugated with transverse folds alternating with grooves and is spineless. At high magnification, the surface of the fold is composed of microfolds or ridges separated by microgrooves or pits. Corrugations and invaginations of the ventral surface are also more extensive than on the dorsal surface of the body. Both anterior and posterior suckers have thick rims covered with transverse folds without spine. The genital pore is situated at the anterior third of the body. There are two types of sensory papillae on the surface: type 1 is bulbous in shape, measuring 10-15. μm in diameter at the base with nipple-like tips, and type 2 has a similar shape and size and also a short cilia on top. These sensory papillae usually occur in large clusters, each having between 5 and 20 units depending on the region of the body. Clusters of papillae on the ventral surface and around the anterior suckers tend to be more numerous and larger in size. The dorsal surface of the body has the least number of papillae. © 2009 Elsevier Inc.
ISSN: 144894
Appears in Collections:SCOPUS 1983-2021

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