white tail disease of the giant freshwater prawn, macrobrachium rosenbergii: separation of the associated virions and characterization of mrnv as a new type of nodavirus. | white tail disease of the farmed freshwater prawn, macrobrachium rosenbergii, is the cause of mortalities in the french west indies, china and india. two different sized particles, both developing in the cytoplasm of target cells, are found associated with diseased animals. these two viruses were separated, purified and subsequently characterized. the larger one, called mrnv, is icosahedral in shape and 27 nm in diameter. its genome is composed of two fragments of linear single-stranded rna (ss- ... | 2005 | 15660790 |