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Surface ultrastructure of Metagonimus takahashii metacercariae and adults.
Korean J Parasitol. 2000 Mar; 38(1):9-15.KJ

Abstract

A scanning electron microscopic study was performed on the surface ultrastructure of metacercariae and adults of Metagonimus takahashii. Metacercariae were collected from the scale of crucian carp (Carassius auratus), and adult flukes were harvested 1-4 weeks after infection to rats. In excysted metacercariae, the oral sucker had type I (numerous) and type II (seven in total) sensory papillae. Tegumental spines were dense and digitated into 5-7 points on the surface anterior to the ventral sucker, but became sparse and less digitated posteriorly toward the end of the body. In adults, seven type II sensory papillae were characteristically arranged around the lip of the oral sucker, and on the inner side of the lip four small and two large type I sensory papillae were symmetrically seen on each side (12 in total). Tegumental spines on anterior two-thirds of the body, were digitated with 9-12 tips ventrally and 8-13 tips dorsally. Sperms entering into the Laurer's canal were observed. The results show that the surface ultrastructure of M. takahashii is generally similar to those of M. yokogawai and M. miyatai except for the digitation of tegumental spines.

Authors+Show Affiliations

Department of Parasitology, Seoul National University College of Medicine, Korea. cjy@plaza.snu.ac.krNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

10743353

Citation

Chai, J Y., et al. "Surface Ultrastructure of Metagonimus Takahashii Metacercariae and Adults." The Korean Journal of Parasitology, vol. 38, no. 1, 2000, pp. 9-15.
Chai JY, Guk SM, Han ET, et al. Surface ultrastructure of Metagonimus takahashii metacercariae and adults. Korean J Parasitol. 2000;38(1):9-15.
Chai, J. Y., Guk, S. M., Han, E. T., Seo, M., Shin, E. H., Sohn, W. M., Choi, S. Y., & Lee, S. H. (2000). Surface ultrastructure of Metagonimus takahashii metacercariae and adults. The Korean Journal of Parasitology, 38(1), 9-15.
Chai JY, et al. Surface Ultrastructure of Metagonimus Takahashii Metacercariae and Adults. Korean J Parasitol. 2000;38(1):9-15. PubMed PMID: 10743353.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Surface ultrastructure of Metagonimus takahashii metacercariae and adults. AU - Chai,J Y, AU - Guk,S M, AU - Han,E T, AU - Seo,M, AU - Shin,E H, AU - Sohn,W M, AU - Choi,S Y, AU - Lee,S H, PY - 2000/4/1/pubmed PY - 2000/6/24/medline PY - 2000/4/1/entrez SP - 9 EP - 15 JF - The Korean journal of parasitology JO - Korean J Parasitol VL - 38 IS - 1 N2 - A scanning electron microscopic study was performed on the surface ultrastructure of metacercariae and adults of Metagonimus takahashii. Metacercariae were collected from the scale of crucian carp (Carassius auratus), and adult flukes were harvested 1-4 weeks after infection to rats. In excysted metacercariae, the oral sucker had type I (numerous) and type II (seven in total) sensory papillae. Tegumental spines were dense and digitated into 5-7 points on the surface anterior to the ventral sucker, but became sparse and less digitated posteriorly toward the end of the body. In adults, seven type II sensory papillae were characteristically arranged around the lip of the oral sucker, and on the inner side of the lip four small and two large type I sensory papillae were symmetrically seen on each side (12 in total). Tegumental spines on anterior two-thirds of the body, were digitated with 9-12 tips ventrally and 8-13 tips dorsally. Sperms entering into the Laurer's canal were observed. The results show that the surface ultrastructure of M. takahashii is generally similar to those of M. yokogawai and M. miyatai except for the digitation of tegumental spines. SN - 0023-4001 UR - https://www.unboundmedicine.com/medline/citation/10743353/Surface_ultrastructure_of_Metagonimus_takahashii_metacercariae_and_adults_ L2 - http://www.parasitol.or.kr/kjp/DOIx.php?id=10.3347/kjp.2000.38.1.9 DB - PRIME DP - Unbound Medicine ER -