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Evolution of a morphological novelty occurred before genome compaction in a lineage of extreme parasites
  • K. Haag, T. James, +4 authors D. Ebert
  • Biology, Medicine
    Proceedings of the National Academy of Sciences
  • 13 October 2014
The evolutionary history of a new microsporidian parasite found in the hindgut epithelium of the crustacean Daphnia is described and it is concluded that the new species has retained ancestral features that were lost in othermicrosporidia, whose hallmarks are the evolution of a unique infection apparatus, extreme genome reduction, and loss of mitochondrial respiration.
A revisionary study of the taxon Tuzetia Maurand, Fize, Fenwick and Michel, 1971, and related forms (Microspora, Tuzetiidae)
Des 13 especes de microsporidies citees dans ce travail, 8 furent precedemment rapportees au genre Tuzetia et 5 sont decrites comme nouvelles
Intestinal microsporidiosis in a HIV-seronegative patient.
Examination of stool specimens revealed plenty of spores that correspond with Enterocytozoon bieneusi in size and shape as well as ultrastructural details, indicating a case of intestinal microsporidiosis in a HIV-seronegative patient with acute self-limited diarrhoea.
A rickettsial pathogen of the amphipod Rivulogammarus pulex
A microorganism attributed to the genus Rickettsiella was found as a pathogen of the amphipod Rivulogammarus pulex collected in the south of Sweden and developed inside membrane-lined vacuoles and three morphological types were observed.
Natural coprevalence of Strongwellsea castrans, Cystosporogenes deliaradicae, and Bacillus thuringiensis in the host, Delia radicum.
Adult cabbage root flies (Delia radicum) from three Danish localities were diagnosed microscopically for the natural prevalence of Strongwellsea castrans, Cystosporogenes deliaradicae, and Bacillus thuringiensis and the biological significance of the interaction between the involved pathogens is discussed.
Description and analysis of two internet-based databases of insect pathogens: EDWIP and VIDIL.
The format and contents of EDWIP and VIDIL on the World Wide Web are described and it is described that the United States and Japan are the most common locations and the Nearctic and Palearctic are themost common biogeographic regions reported inEDWIP.
Insect pathological investigations on Swedish thysanura: Observations on Malamoeba locustae (Protozoa, Amoebidae) from Lepisma saccharina (Thysanura, Lepismatidae)
Abstract A case of spontaneous infection of Malamoeba locustae from a free-living indoor population of Lepisma saccharina is reported. The source of infection was probably a culture of Schistocerca
Baculovirus-like particles in the midgut epithelium of the phantom midge, Chaoborus crystallinus (Diptera, Chaoboridae)
A rod-shaped microorganism of presumed baculoviral nature is described from larvae of Chaoborus crystallinus collected in Sweden, causing strong nuclear hypertrophy in midgut epithelium.