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Title: Scanning Electron Microscopic Study of the Tegumental Surface of Adult Schistosoma Mekongi
Authors: P. Vongpayabal
P. Sobhon
C. Wanichanon
V. Mitranond
V. E.C. Tumbel
Mahidol University
Keywords: Agricultural and Biological Sciences;Immunology and Microbiology;Medicine
Issue Date: 1-Jan-1982
Citation: Parasitology. Vol.85, No.2 (1982), 325-332
Abstract: The surface topography of the tegument of adult Schistosoma mekongi was studied by scanning electron microscopy (SEM). In comparison to other species of human schistosomes the male tegument lacks tubercles and, except in the gynecophoral canal, also lacks spines; instead the surface is composed chiefly of trabeculae of highly perforated ridges which give it the ‘spongy’ appearance. In addition, there are 3 kinds of papillae interspersed on the surface among the ridges. The first is a doughnut-shaped papilla with a central crater which is most abundant on the ventral surface of the anterior part, on the floor of the gynecophoral canal and on the dorsal-lateral aspect of the tail. The second is a pleomorphic papilla with irregular shape and size, which is scattered throughout the dorso-lateral aspect of the middle part of the body. The third type of papilla has a uniform hemispherical shape, possesses a cilium projecting from its apex and probably corresponds to the ‘sensory papilla’ found in other species. The tegument of the female differs from that of the male by having numerous short spines over the whole surface; however, the pleomorphic papillae are much fewer in number and the ridges are much less developed than those of the male tegument ; complex trabeculae are absent. © 1982, Cambridge University Press. All rights reserved.
ISSN: 14698161
Appears in Collections:Scopus 1969-1990

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