| a new microsporidian parasite, potaspora morhaphis n. gen., n. sp. (microsporidia) infecting the teleostean fish, potamorhaphis guianensis from the river amazon. morphological, ultrastructural and molecular characterization. | a fish-infecting microsporidia potaspora morhaphis n. gen., n. sp. found adherent to the wall of the coelomic cavity of the freshwater fish, potamorhaphis guianensis, from lower amazon river is described, based on light microscope and ultrastructural characteristics. this microsporidian forms whitish xenomas distinguished by the numerous filiform and anastomosed microvilli. the xenoma was completely filled by several developmental stages. in all of these stages, the nuclei are monokaryotic and d ... | 2008 | 18694535 |