First case of hepatopancreatic necrosis disease in pond-reared Chinese mitten crab, Eriocheir sinensis, associated with microsporidian

© 2016 John Wiley & Sons Ltd.

Détails bibliographiques
Publié dans:Journal of fish diseases. - 1998. - 39(2016), 9 vom: 01. Sept., Seite 1043-51
Auteur principal: Ding, Z (Auteur)
Autres auteurs: Meng, Q, Liu, H, Yuan, S, Zhang, F, Sun, M, Zhao, Y, Shen, M, Zhou, G, Pan, J, Xue, H, Wang, W
Format: Article en ligne
Langue:English
Publié: 2016
Accès à la collection:Journal of fish diseases
Sujets:Journal Article Eriocheir sinensis Hepatospora eriocheir Microsporidia hepatopancreatic necrosis disease DNA, Protozoan RNA, Ribosomal, 18S
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520 |a An epidemic of hepatopancreatic necrosis disease (HPND) with a high mortality rate (40%-50%) recently occurred in the cultured Chinese mitten crab, Eriocheir sinensis, which is a very important economic crustacean species in China. Histology revealed infection by a microsporidian parasite within the cytoplasm of the epithelial cells of the hepatopancreas. Numerous discrete inclusions in the infected cells and presumably free parasite spores were also observed. By negative staining using electron microscopy, a typical morphology of spores was observed with a protuberant front of the anchoring disc. Infection was confined to the epithelial cells of the hepatopancreas, with no other organ implicated. By sequencing the PCR products using specific primers based on conserved regions of microsporidian small subunit (18S) ribosomal DNA, it was revealed that the parasite from HPND ponds had 99% sequence identity to that of Hepatospora eriocheir. Phylogentic analysis also placed the microsporidian in the same lineage as H. eriocheir. This study reported the first case of widespread infections of H. eriocheir associated with HPND found in the pond-reared Chinese mitten crab, E. sinensis. The description of microsporidian in this important commercial host is fundamental for future consideration of factors affecting stock health and sustainability 
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650 4 |a hepatopancreatic necrosis disease 
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700 1 |a Meng, Q  |e verfasserin  |4 aut 
700 1 |a Liu, H  |e verfasserin  |4 aut 
700 1 |a Yuan, S  |e verfasserin  |4 aut 
700 1 |a Zhang, F  |e verfasserin  |4 aut 
700 1 |a Sun, M  |e verfasserin  |4 aut 
700 1 |a Zhao, Y  |e verfasserin  |4 aut 
700 1 |a Shen, M  |e verfasserin  |4 aut 
700 1 |a Zhou, G  |e verfasserin  |4 aut 
700 1 |a Pan, J  |e verfasserin  |4 aut 
700 1 |a Xue, H  |e verfasserin  |4 aut 
700 1 |a Wang, W  |e verfasserin  |4 aut 
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