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Segmentina hemisphaerula: a new molluscan intermediate host for Echinostoma cinetorchis in Korea.
J Parasitol. 2001 Oct; 87(5):1169-71.JP

Abstract

Three species of Planorbidae have been reported from Korea, e.g., Gyraulus convexiusculus, Hippeutis (Helicorbis) cantori, and Segmentina (Polypylis) hemisphaerula. Of these, only H. cantori was reported as the first and second intermediate host for Echinostoma cinetorchis, an important human intestinal parasite in Korea. Segmentina hemisphaerula has also been found to be an intermediate host. In field-collected planorbids, only S. hemisphaerula was found shedding echinostome cercariae and infected with metacercariae of E. cinetorchis, whereas no G. convexiusculus and H. cantori were found to be infected. In experiments with laboratory-bred snails, G. convexiusculus and S. hemisphaerula were susceptible to infection by miracidia of E. cinetorchis, but H. cantori could not be infected. Tadpoles of Rana nigromaculata and laboratory-bred snails of the 3 planorbid species were exposed to E. cinetorchis cercariae shed from field-collected S. hemisphaerula. All tadpoles, S. hemisphaerula, and G. convexiusculus became infected, but no H. cantori were infected. Metacercariae from tadpoles, S. hemisphaerula, and G. convexiusculus were fed to rats per os, and eggs of E. cinetorchis were detected in the rat feces 1 wk later. The rats were killed, and adult E. cinetorchis were recovered from the small intestines. This is the first report of G. convexiusculus as a potential first and second intermediate host and of S. hemisphaerula as a new first and second intermediate host for E. cinetorchis in Korea.

Authors+Show Affiliations

Department of Parasitology, Inha University College of Medicine, Inchon, Korea.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

11695387

Citation

Chung, P R., et al. "Segmentina Hemisphaerula: a New Molluscan Intermediate Host for Echinostoma Cinetorchis in Korea." The Journal of Parasitology, vol. 87, no. 5, 2001, pp. 1169-71.
Chung PR, Jung Y, Park YK. Segmentina hemisphaerula: a new molluscan intermediate host for Echinostoma cinetorchis in Korea. J Parasitol. 2001;87(5):1169-71.
Chung, P. R., Jung, Y., & Park, Y. K. (2001). Segmentina hemisphaerula: a new molluscan intermediate host for Echinostoma cinetorchis in Korea. The Journal of Parasitology, 87(5), 1169-71.
Chung PR, Jung Y, Park YK. Segmentina Hemisphaerula: a New Molluscan Intermediate Host for Echinostoma Cinetorchis in Korea. J Parasitol. 2001;87(5):1169-71. PubMed PMID: 11695387.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Segmentina hemisphaerula: a new molluscan intermediate host for Echinostoma cinetorchis in Korea. AU - Chung,P R, AU - Jung,Y, AU - Park,Y K, PY - 2001/11/7/pubmed PY - 2002/1/5/medline PY - 2001/11/7/entrez SP - 1169 EP - 71 JF - The Journal of parasitology JO - J. Parasitol. VL - 87 IS - 5 N2 - Three species of Planorbidae have been reported from Korea, e.g., Gyraulus convexiusculus, Hippeutis (Helicorbis) cantori, and Segmentina (Polypylis) hemisphaerula. Of these, only H. cantori was reported as the first and second intermediate host for Echinostoma cinetorchis, an important human intestinal parasite in Korea. Segmentina hemisphaerula has also been found to be an intermediate host. In field-collected planorbids, only S. hemisphaerula was found shedding echinostome cercariae and infected with metacercariae of E. cinetorchis, whereas no G. convexiusculus and H. cantori were found to be infected. In experiments with laboratory-bred snails, G. convexiusculus and S. hemisphaerula were susceptible to infection by miracidia of E. cinetorchis, but H. cantori could not be infected. Tadpoles of Rana nigromaculata and laboratory-bred snails of the 3 planorbid species were exposed to E. cinetorchis cercariae shed from field-collected S. hemisphaerula. All tadpoles, S. hemisphaerula, and G. convexiusculus became infected, but no H. cantori were infected. Metacercariae from tadpoles, S. hemisphaerula, and G. convexiusculus were fed to rats per os, and eggs of E. cinetorchis were detected in the rat feces 1 wk later. The rats were killed, and adult E. cinetorchis were recovered from the small intestines. This is the first report of G. convexiusculus as a potential first and second intermediate host and of S. hemisphaerula as a new first and second intermediate host for E. cinetorchis in Korea. SN - 0022-3395 UR - https://www.unboundmedicine.com/medline/citation/11695387/Segmentina_hemisphaerula:_a_new_molluscan_intermediate_host_for_Echinostoma_cinetorchis_in_Korea_ L2 - http://www.journalofparasitology.org/doi/10.1645/0022-3395(2001)087[1169:SHANMI]2.0.CO;2?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -
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