Fasciola gigantica: surface topography of the adult tegument

Journal of Helminthology
T DangprasertP Sobhon

Abstract

Adult Fasciola gigantica are leaf-shaped with tapered anterior and posterior ends and measure about 35 mm in length and 15 mm in width across the mid section. Under the scanning electron microscope its surface appears rough due to the presence of numerous spines and surface foldings. Both oral and ventral suckers have thick rims covered with transverse folds and appear spineless. On the anterior part of the ventral surface of the body, the spines are small and closely-spaced. Each spine has a serrated edge with 16 to 20 sharp points, and measures about 20 microm in width and 30 microm in height. In the mid-region the spines increase in size (up to 54 microm in width and 58 microm in height) and number, especially towards the lateral aspect of the body. Towards the posterior end the spines progressively decrease in both size and number. The tegumental surface between the spines appears highly corrugated with transverse folds alternating with grooves. At higher magnifications the surface of each fold is further increased with a meshwork of small ridges separated by variable-sized pits or slits. There are three types of sensory papillae on the surface. Types 1 and 2 are bulbous, measuring 4-6 microm in diameter at the base with ni...Continue Reading

References

Aug 25, 1977·Zeitschrift Für Parasitenkunde·C Shoho, S Uni
Apr 1, 1992·Journal of Clinical Periodontology·D D SkaarW F Liljemark
Jan 1, 1990·Journal of Tongji Medical University = Tong Ji Yi Ke Da Xue Xue Bao·L J HaoP H Song
Feb 1, 1987·International Journal for Parasitology·J P Fabiyi
Jan 1, 1973·Advances in Parasitology·D J Hockley
Jan 1, 1973·International Journal for Parasitology·D J Hockley, D J McLaren
Nov 1, 1993·International Journal for Parasitology·W ApinhasmitE S Upatham
Jul 1, 1995·Australian Veterinary Journal·D J Overend, F L Bowen

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Citations

Jan 5, 2010·Experimental Parasitology·Busaba PanyarachunPanat Anuracpreeda
Apr 28, 2009·Experimental Parasitology·Naruwan SaowakonPrasert Sobhon
Mar 24, 2009·Experimental Parasitology·Panat AnuracpreedaPrasert Sobhon
Aug 31, 2013·Acta Tropica·Kimberly Cabán-Hernández, Ana M Espino
Sep 3, 2009·Experimental Parasitology·Panat AnuracpreedaPrasert Sobhon
Nov 3, 2006·Acta Tropica·Panat AnuracpreedaPrasert Sobhon

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