Encephalomyelitis associated with microsporidian infection in farmed greater amberjack, Seriola dumerili (Risso)
© 2011 Blackwell Publishing Ltd.
| Veröffentlicht in: | Journal of fish diseases. - 1998. - 34(2011), 12 vom: 21. Dez., Seite 901-10 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2011
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| Zugriff auf das übergeordnete Werk: | Journal of fish diseases |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't 3,4-bis-(2,4,5-trimethyl-thiophen-3-yl)furan-2,5-dione Furans RNA, Fungal Thiophenes |
| Zusammenfassung: | © 2011 Blackwell Publishing Ltd. An outbreak of a disease characterized by a peculiar spiral movement in farmed greater amberjack, Seriola dumerili (Risso), occurred in Kagoshima Prefecture, Japan, in May 2008, immediately after importing the fish from China. Although neither bacteria nor viruses were detected in routine diagnostic tests, histopathological observations of the affected fish revealed severe inflammation in the tegmentum of the brain including the medulla oblongata and the anterior part of the spinal cord. In addition, a microsporidian parasite was observed in the nerve cell bodies or axons in the inflamed tissues. We identified a microsporidian small subunit rRNA gene (SSU rDNA) from the lesion, and the sequence showed 96.1% identity with that of Spraguea lophii. Subsequent in situ hybridization using probes presumably specific to the SSU rRNA confirmed that the parasite observed in histopathology harboured the identified SSU rRNA. Apparently degenerated microsporidian cells or spores were also frequently observed in tissue sections. Thus, the disease was most probably caused by the infection of a hitherto unknown microsporidian parasite that has a genetic affinity to the genus Spraguea, in the central nervous system of the amberjack |
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| Beschreibung: | Date Completed 02.03.2012 Date Revised 30.09.2020 published: Print Citation Status MEDLINE |
| ISSN: | 1365-2761 |
| DOI: | 10.1111/j.1365-2761.2011.01312.x |