@article{oai:mie-u.repo.nii.ac.jp:00010229, author = {Miyazaki, Teruo and 宮崎, 照雄 and Fujimaki, Yukio and 藤巻, 由紀夫 and Hatai, Kishio and 畑井, 喜司雄}, issue = {2}, journal = {Bulletin of the Japanese Society of Scientific Fisheries}, month = {Feb}, note = {application/pdf, Epitheliocystis disease was found in red sea bream Pagrus major, transported from Hong-Kong, and tiger puffer Takifugu rubripes and carp Cyprinus carpio cultured in Japan. Histopathological and electron microscopic studies were made on these diseased fishes. Epitheliocystis cysts of these fishes developed in gills. Cysts of red sea bream were found on the capillary under respiratory epithelium of gill lamellae in the early stage of the infection. Heavily infected gills showed many cysts among the hyperplastic epithelium of the interlamellar spaces, followed by clubbing of the gill filaments. The cysts ranged in diameter from 15 µm to 55 µm. The cysts had a cellular capsule and an inclusion body which was revealed to be packed with chlamydia-like organisms ranging from 0.52 µm to 0.71 µm in size, by electron microscopy. Epitheliocystis cysts of tiger puffer developed on the capillary under the respiratory epithelium of gill lamellae. The cysts ranged in size from 25 µm to 43 µm. Epitheliocystis cysts of red sea bream and tiger puffer indicated that they developed from infected cells forming larnellar capillaries. Epitheliocystis cysts of carp developed within the epithelium of the interlamellar spaces on gill filaments and ranged in diameter from 12 µm to 50 µm.}, pages = {199--202}, title = {A Light and Electron Microscopic Study on Epitheliocystis Disease in Cultured Fishes}, volume = {52}, year = {1986} }