Korean J Parasitol.  2019 Dec;57(6):639-645. 10.3347/kjp.2019.57.6.639.

Identity of Spirometra theileri from a Leopard (Panthera pardus) and Spotted Hyena (Crocuta crocuta) in Tanzania

Affiliations
  • 1Department of Parasitology, Parasitology Research Center and Parasite Resource Bank, Chungbuk National University School of Medicine, Cheongju 28644, Korea. jeonhk@chungbuk.ac.kr
  • 2Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
  • 3Tanzania Wildlife Research Institute, Arusha, Tanzania.
  • 4Tanzania Wildlife Management Authority, P.O. BOX 2658 Morogoro, Tanzania.
  • 5Department of Parasitology, Sylhet Agricultural University, Bangladesh.

Abstract

In the present study, a Spirometra species of Tanzania origin obtained from an African leopard (Panthera pardus) and spotted hyena (Crocuta crocuta) was identified based on molecular analysis of cytochrome c oxidase I (cox1) and NADH dehydrogenase subunit I (nad1) as well as by morphological observations of an adult tapeworm. One strobila and several segments of a Spirometra species were obtained from the intestine of an African male leopard (Panthera pardus) and spotted hyena (Crocuta crocuta) in the Maswa Game Reserve of Tanzania. The morphological characteristics of S. theileri observed comprised 3 uterine loops on one side and 4 on the other side of the mid-line, a uterine pore situated posterior to the vagina and alternating irregularly either to the right or left of the latter, and vesicular seminis that were much smaller than other Spirometra species. Sequence differences in the cox1 and nad1 genes between S. theileri (Tanzania origin) and S. erinaceieuropaei were 10.1% (cox1) and 12.0% (nad1), while those of S. decipiens and S. ranarum were 9.6%, 9.8% (cox1) and 13.0%, 12.6% (nad1), respectively. The morphological features of the Tanzania-origin Spirometra specimens coincided with those of S. theileri, and the molecular data was also consistent with that of S. theileri, thereby demonstrating the distribution of S. theileri in Tanzania. This places the leopard (Panthera pardus) and spotted hyena (Crocuta crocuta) as new definitive hosts of this spirometrid tapeworm.

Keyword

Spirometra theileri; cox1; nad1; morphology; Tanzania

MeSH Terms

Adult
Animals
Cestoda
Electron Transport Complex IV
Humans
Hyaenidae*
Intestines
Male
NADH Dehydrogenase
Panthera*
Spirometra*
Tanzania*
Vagina
Electron Transport Complex IV
NADH Dehydrogenase
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