Publication: A novel paramyxean parasite, Marteilia tapetis sp. nov. (Cercozoa) infecting the digestive gland of Manila clam Ruditapes philippinarum from the southeast coast of Korea
Issued Date
2019-05-01
Resource Type
ISSN
10960805
00222011
00222011
Other identifier(s)
2-s2.0-85063637255
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Invertebrate Pathology. Vol.163, (2019), 86-93
Suggested Citation
Hyun Sil Kang, Naoki Itoh, Yanin Limpanont, Hye Mi Lee, Ilson Whang, Kwang Sik Choi A novel paramyxean parasite, Marteilia tapetis sp. nov. (Cercozoa) infecting the digestive gland of Manila clam Ruditapes philippinarum from the southeast coast of Korea. Journal of Invertebrate Pathology. Vol.163, (2019), 86-93. doi:10.1016/j.jip.2019.03.006 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/49774
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
A novel paramyxean parasite, Marteilia tapetis sp. nov. (Cercozoa) infecting the digestive gland of Manila clam Ruditapes philippinarum from the southeast coast of Korea
Abstract
© 2019 Paramyxean parasites in the genus Marteilia deteriorate digestive tissues of the host organisms, resulting in mortality of oysters, cockles, and mussels. Most reports of infection by Marteilia spp. are from Europe, while a new species of Marteilia was identified recently in Japan. Here, we report a previously unidentified species in the genus Marteilia from digestive diverticula of Manila clam Ruditapes philippinarum from the south coast of Korea. Prevalence of the parasite was low, 0.5–3.3% in the study sites. We characterized this species using light and transmission electron microscopy (TEM), and analyzed the 18S rDNA sequence. Light microscopy revealed the sporulation process from uninucleated stage to spore in the epithelial tissues of the digestive gland. TEM revealed that the parasites produced four secondary cells containing four tri-cellular spores. An electron-dense haplosporosome-like structure and striated inclusions were evident in the spore and the primary cells, respectively, while refringent granules were rarely observed in the secondary cells. Phylogenetic analyses of the 18S rDNA sequence placed this isolate in the genus Marteilia, although it is not identical to other known species in the genus. Based on morphological and molecular characters, we describe this species as Marteilia tapetis sp. nov., the second Marteilia species reported parasitizing Manila clams in Asian waters.