Consulta: subjectFacets:"Extra small virus"
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Quantitative relationship of two viruses (MrNV and XSV) in white-tail disease of Macrobrachium rosenbergii
Provedor de dados: 5
Autores: Zhang, Hj; Wang, Hm; Yuan, Jf; Li, Lj; Zhang, Jh; Bonami, Jean-robert; Shi, Zl.
Macrobrachium rosenbergii nodavirus (MrNV) and extra small virus (XSV) were purified from diseased freshwater prawns M rosenbergii and used to infect healthy post-larvae (PL) by an immersion method. Three groups of prawns were challenged with various combined doses of MrNV and XSV. Signs of white-tail disease (WTD) were observed in Groups 1 and 2, which had been challenged with combinations containing relatively high proportions of MrNV and low proportions of XSV. By contrast there was little sign of WTD in Group 3, which had been challenged with a higher proportion of XSV than MrNV. A 2-step Taqman real-time RT-PCR was developed and applied to quantify viral copy numbers in each challenged PL. Results showed that genomic copies of both viruses were much...
Tipo: Text
Palavras-chave: White tail disease; Real time RT PCR; Extra small virus; Nodavirus; Macrobrachium rosenbergii.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-3568.pdf