Alaria alata (Digenea: Diplostomidae) from Korean Raccoon Dog, Nyctereutes procyonoides koreensis , in Korea

The Korean Journal of Parasitology

article

Heon Woo Lee¹  Eui Ju Hong²  Hyeon Cheol Kim¹  Si Yun Ryu²  Bae Keun Park² 

[1] College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University;College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University

关键词: Alaria alata;    Nyctereutes procyonoides koreensis;    Korea;   

DOI  :  10.3347/kjp.2022.60.5.361

学科分类：生物科学（综合）

来源: The Korean Society for Parasitology

【 摘 要 】

We report a species of diplostomid fluke recovered from 3 carcasses of wild Korean raccoon dog, Nyctereutes procyonoides koreensis, in Korea. A total of 107 diplostomid flukes were recovered from the small intestines of Korean raccoon dogs, which were obtained from the Gangwon Wildlife Medical Rescue Center. Worms fixed with 10% neutral formalin were subjected to microscopic observation and those fixed in 70% ethanol were used for molecular genomic analysis. The worm was divided into 2 separate parts, forebody and hindbody, with a total length of 3,020–4,090 (3,855) μm and a width of 1,210–1,770 (1,562) μm. The boat-shaped forebody has a pair of characteristic tentacular appendage, 2 suckers, holdfast organ, and vitelline follicles. The oval to cylindrical hindbody has reproductive organs. The ovary was round or elliptical and located in the anterior of the testes. Two large testes were slightly segmented and tandemly arranged, occupying almost half of hindbody. The short uterus contained a relatively small number of unembryonated eggs sized 130–140×85–96 μm. The partial sequence of 18S rRNA of this fluke was consistent with Alaria alata. Based on the morphological and molecular characteristics, the diplostomid flukes recovered from the small intestine of Korean raccoon dogs were identified as A. alata (Digenea: Diplostomidae).

【 授权许可】

Free