Gynaecotyla squatarolae (Digenea: Microphallidae) from rats experimentally infected with metacercariae from the shore crab, Macrophthalmus dilatatus.
10.3347/kjp.2007.45.3.199
- Author:
Min SEO
1
;
Sang Mee GUK
;
Seung Ha LEE
;
Jong Yil CHAI
Author Information
1. Department of Parasitology, College of Medicine, Dankook University, Cheonan, Korea. bbbenji@freechal.com
- Publication Type:Original Article
- Keywords:
Gynaecotyla squatarolae;
intestinal fluke;
metacercaria;
shore crab;
Macrophthalmus dilatatus;
rat(experimental)
- MeSH:
Animals;
Brachyura/*parasitology;
Female;
Host-Parasite Interactions;
Korea;
Life Cycle Stages/physiology;
Male;
Rats;
Rats, Sprague-Dawley;
Time Factors;
Trematoda/*anatomy & histology/isolation & purification/*pathogenicity;
Trematode Infections/parasitology/*veterinary
- From:The Korean Journal of Parasitology
2007;45(3):199-204
- CountryRepublic of Korea
- Language:English
-
Abstract:
Metacercariae of Gynaecotyla squatarolae (Digenea: Microphallidae) were discovered from the shore crab, Macrophthalmus dilatatus, purchased at a market in a coastal town of Taean-Eup, Chungcheongnam-do, Republic of Korea. Their adult flukes were confirmed by experimental infection of rats. The metacercariae of G. squatarolae were elliptical (391.1 x 362.5 micrometer), and the excysted metacercariae had progenetic genital organs, including the ovary and testes. To obtain adult flukes, 6 Sprague-Dawley rats were fed 500 metacercariae each, and killed at days 2, 4, and 6 post-infection. The adult flukes were identified as G. squatarolae (Yamaguti, 1934) Yamaguti, 1939, based on morphological characters, including 2 ventral suckers (1 large and 1 small), a large genital atrium equipped with the cirrus and the metraterm, separated male and female genital pores, a transversely long cirrus pouch, and extensive vitelline follicles. In the present study, it has been first proven that the shore crab M. dilatatus is a second intermediate host for G. squatarolae in the Republic of Korea.
