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Ultrastructural Character on the Cuticular Surface of Thelazia callipaeda  

Kim, Soo-Jin (Department of Biology, College of Natural Science, Hallym University)
Joo, Kyoung-Hwan (Department of Parasitology, Korea University College of Medicine)
Chung, Myung-Sook (Department of Parasitology, Korea University College of Medicine)
Publication Information
Applied Microscopy / v.32, no.1, 2002 , pp. 45-55 More about this Journal
Abstract
The worm of Thelazia callipaeda Railliet et Henry, 1910 (The oriental eye worm) was frequently observed in the eyes of animal and human in Korea. But it did not clearly describe about the ultrastructural character on the sensory papillae and cuticular striation of the worm. This study was performed to investigate the ultrastructure and character on the cuticular surface of the worm that was extracted from the eyes of two patients in Korea University Medical Center, using the scanning electron microscopy. According to the mouth, 1/4, 1/2, 3/4 and tail portion of the worm, the size of cuticular striation on each portion was measured. The size of cuticular striation on the worm surface was $1.8{\mu}m$ in the mouth and tail portion, $4.0{\sim}4.5{\mu}m$ in the middle portion of the worm. On the scanning electron microscopy, the female worms were developed phasmids in the tail end and male worms were developed sensory papillae and external sexual organ on the tail end. The sensory papillae on the tail end were composed anterior ventral postcloacal papillae, middle ventral postcloacal papillae, subventral postcloacal papillae, and lateral papillae. According to the result in this study, it is considered that the character of the cuticular striation and the sensory papillae were able to accept as classifying key for the identification of species.
Keywords
Cuticular striation; Oriental eye worm; Phasmid; Sensory papillae; Thelazia callipaeda;
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