| development, ultrastructure, natural occurrence, and molecular characterization of liebermania patagonica n. g., n. sp., a microsporidian parasite ot the grasshopper tristira magellanica (orthoptera: tristiridae). | a new microsporidium, liebermannia patagonica n. gen., n. sp., is described from midgut and gastric caecum epithelial cells of tristira magellanica, an apterous grasshopper species of southern patagonia, argentina. l.patagonica is diplokaryotic, apansporoblastic, homosporous, and polysporoblastic. transitional (from merogony to sporogony) stages and sporonts of l. patagonica were surrounded by host rough endoplasmic reticulum. the ovocylindrical spores measured 2.9 +/- 0.09 x 1.2 +/- 0.04 microm ... | 2006 | 16524588 |
| establishment of liebermannia dichroplusae n. comb. on the basis of molecular characterization of perezia dichroplusae lange, 1987 (microsporidia). | perezia dichroplusae lange, 1987 is a parasite of the malpighian tubules of an argentine grasshopper, dichroplus elongatus (orthoptera, acrididae, melanoplinae). in order to determine relationships of this microsporidium with perezia nelsoni and with other microsporidia, we sequenced its small subunit ribosomal rna gene (ssu rdna) (genbank accession no. ef016249) and performed phylogenetic analysis of the novel sequence against 17 microsporidian ssu rdna sequences from genbank, using neighbor-jo ... | 2007 | 17552977 |
| phylogenetic relationships of heterovesicula cowani, a microsporidian pathogen of mormon crickets, anabrus simplex (orthoptera: tettigoniidae), based on ssu rdna-sequence analyses. | the microsporidium heterovesicula cowani, discovered in 1985, was initially identified as vairimorpha sp. because it produces two types of spores: nosema-like diplokaryotic spores and thelohania-like mononuclear meiospores. however, light and electron microscopy studies revealed characters that did not fit any known microsporidian genera, and a new monotypic genus heterovesicula was erected. the goal of this study was to test the validity of the genus heterovesicula by molecular characterization ... | 2008 | 18374939 |