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http://dx.doi.org/10.3347/kjp.2021.59.1.83

Parvatrema duboisi (Digenea: Gymnophallidae) Life Cycle Stages in Manila Clams, Ruditapes philippinarum, from Aphae-do (Island), Shinan-gun, Korea  

Jung, Bong-Kwang (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Chang, Taehee (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Shin, Hyejoo (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Ryoo, Seungwan (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Hong, Sooji (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Lee, Jeonggyu (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Song, Hyemi (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Cho, Jaeeun (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Kim, Deok-Gyu (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Jun, Hojong (Department of Tropical Medicine, Inha University College of Medicine)
Kim, Min-Jae (Department of Infectious Diseases, Asan Medical Center)
Won, Eun Jeong (Department of Parasitology and Tropical Medicine, Chonnam National University Medical School)
Han, Eun-Taek (Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University)
Shin, Eun-Hee (Department of Tropical Medicine and Parasitology, Seoul National University College of Medicine)
Chai, Jong-Yil (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Publication Information
Parasites, Hosts and Diseases / v.59, no.1, 2021 , pp. 83-88 More about this Journal
Abstract
Life cycle stages, including daughter sporocysts, cercariae, and metacercariae, of Parvatrema duboisi (Dollfus, 1923) Bartoli, 1974 (Digenea: Gymnophallidae) have been found in the Manila clam Ruditapes philippinarum from Aphae-do (Island), Shinan-gun, Jeollanam-do, Korea. The daughter sporocysts were elongated sac-like and 307-570 (av. 395) ㎛ long and 101-213 (av. 157) ㎛ wide. Most of the daughter sporocysts contained 15-20 furcocercous cercariae each. The cercariae measured 112-146 (av. 134) ㎛ in total length and 35-46 (av. 40) ㎛ in width, with 69-92 (av. 85) ㎛ long body and 39-54 (av. 49) ㎛ long tail. The metacercariae were 210-250 (av. 231) ㎛ in length and 170-195 (av. 185) ㎛ in width, and characterized by having a large oral sucker, genital pore some distance anterior to the ventral sucker, no ventral pit, and 1 compact or slightly lobed vitellarium, strongly suggesting P. duboisi. The metacercariae were experimentally infected to ICR mice, and adults were recovered at day 7 post-infection. The adult flukes were morphologically similar to the metacercariae except in the presence of up to 20 eggs in the uterus. The daughter sporocysts and metacercariae were molecularly (ITS1-5.8S rDNA-ITS2) analyzed to confirm the species, and the results showed 99.8-99.9% identity with P. duboisi reported from Kyushu, Japan and Gochang, Korea. These results confirmed the presence of various life cycle stages of P. duboisi in the Manila clam, R. philippinarum, playing the role of the first as well as the second intermediate host, on Aphae-do (Island), Shinan-gun, Korea.
Keywords
Parvatrema duboisi; gymnophallid; sporocyst; cercaria; metacercaria; Manila clam; Aphae-do (Island); Korea;
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Times Cited By KSCI : 2  (Citation Analysis)
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