Abstract
This study was carried out to observe the chronological tegumental changes of juvenile C. sinensis using scanning and transmission electron microscopes (SEM and TEM). The subjected worms were the excysted metacercaria, and l day, 1 week, 2 week and 4 week old worms. By observation with SEM, the tegument of excysted metacercaria showed many transverse wrinkling or shallow rugae, especially remarkable in anterior half of body, i.e., anterior to ventral sucker.
Many spines were arrayed on the whole body surface, and double or triple pointed on anterior half and single pointed on posterior half. The observed sensory papillae were composed of 3 types. The ciliated knob-like papillae (type A in Fujino's classification) were abundant on anterior half, especially around oral sucker. A few plate like elevated papillae (type B) were found on middle part and non-ciliated round swellings (type C papillae) were observed around ventral sucker. The tegumental surface of 1 day old worms showed deeper rugae, and the posterior body end was covered with cobble stone-like processes of distal cytoplasm. The spines protruded further and the spines on posterior half of body changed to scale-like ones. The tegument of 1 week old worms became velvety and the spines grew further in length, but the density decreased. The tegumental processes differentiated much finely in the 2 week and 4 week old specimens and the spines or sensory papillae decreased of their relative density. The basic tegumental structures, such as distal cytoplasm containing various granules, vesicles and spines, basement membrane complex, muscular layers and tegumental cells were also monitored in 1 week old worms by TEM.
Citations
Citations to this article as recorded by
- Body Surface Ultrastructure as a Main Morphological Criterion for Distinguishing Adult Trematode Metagonimus suifunensis
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Biology.2024; 13(11): 942. CrossRef - Surface Ultrastructure of Juvenile and Adult Acanthoparyphium tyosenense (Digenea: Echinostomatidae)
Eun-Taek Han, Moon-Seok Choi, Sung-Yil Choi, Jong-Yil Chai
Journal of Parasitology.2011; 97(6): 1049. CrossRef - On the morphology of Acanthostomum spiniceps (Looss, 1896) and A. absconditum (Looss, 1901) (Digenea: Cryptogonimidae: Acanthostominae) with particular reference to the juvenile stage
Mohammed Hasan Ibraheem
Acta Zoologica.2006; 87(3): 159. CrossRef - Surface ultrastructure of Pygidiopsis summa (Digenea: Heterophyidae) adult flukes
Jong-Yil Chai, Woon-Mok Sohn, Sung-Yil Choi, Soon-Hyung Lee
The Korean Journal of Parasitology.2002; 40(3): 107. CrossRef - Surface ultrastructure of Metagonimus takahashii metacercariae and adults
Jong-Yil Chai, Sang-Mee Guk, Eun-Taek Han, Min Seo, Eun-Hee Shin, Woon-Mok Sohn, Sung-Yil Choi, Soon-Hyung Lee
The Korean Journal of Parasitology.2000; 38(1): 9. CrossRef - Surface ultrastructure of Metagonimus miyatai metacercariae and adults
J Y Chai, Y J Kang, S Y Choi, S M Guk, J R Yu, S H Lee
The Korean Journal of Parasitology.1998; 36(4): 217. CrossRef - Tegumental ultrastructure of juvenile and adult Echinostoma cinetorchis
S H Lee, H S Jun, W M Sohn, J Y Chai
The Korean Journal of Parasitology.1992; 30(2): 65. CrossRef - Surface ultrastructure of Heterophyes nocens (Trematoda: Heterophyidae)
J Y Chai, H L Chung, M H Choi, W M Sohn, S J Hong, S H Lee
The Korean Journal of Parasitology.1992; 30(2): 75. CrossRef - Tegumental ultrastructures of Paragonimus iloktsuenensis according to the developmental stages
S H Lee, S J Kim, J Y Chai, W M Sohn
The Korean Journal of Parasitology.1989; 27(1): 57. CrossRef - Early morphogenesis in the platyhelminthes with special reference to egg development and development of cestode larvae
M.D.B. Burt
International Journal for Parasitology.1987; 17(1): 241. CrossRef - Scanning electron microscopical findings of Echinochasmus japonicus tegument
Soon Hyung Lee, Woon Mok Sohn, Sung Tae Hong
The Korean Journal of Parasitology.1987; 25(1): 51. CrossRef - Ultrastructural studies on the surface of Paragonimus westermani metacercaria
Kyong Min Kim, Myoung Hee Ahn, Duk Young Min
The Korean Journal of Parasitology.1987; 25(2): 129. CrossRef - Tegumental ultrastructures of Echinostoma hortense observed by scanning electron microscopy
Soon Hyung Lee, Sung Jong Hong, Jong Yil Chai, Sung Tae Hong, Byong Seol Seo
The Korean Journal of Parasitology.1986; 24(1): 63. CrossRef - Studies on intestinal trematodes in Korea X. Scanning electron microscopic observation on the tegument of Fibricola seoulensis
Byong Seol Seo, Soon Hyung Lee, Jong Yil Chai, Sung Tae Hong, Sung Jong Hong
The Korean Journal of Parasitology.1984; 22(1): 21. CrossRef - Study on Metagonimus yokogawai(Katsurada, 1912) in Korea VII. Electron microscopic observation on the tegumental structure
Soon Hyung Lee, Byong Seol Seo, Jong Yil Chai, Sung Jong Hong
The Korean Journal of Parasitology.1984; 22(1): 1. CrossRef
