The hyperparasitic microsporidium Amphiacantha longa Caullery et Mesnil, 1914 (Microspora: Metchnikovellidae) - description of the cytology, redescription of the species, emended diagnosis of the genus Amphiacantha and establishment of the new family Amphiacanthidae.

@article{Larsson2000TheHM,
  title={The hyperparasitic microsporidium Amphiacantha longa Caullery et Mesnil, 1914 (Microspora: Metchnikovellidae) - description of the cytology, redescription of the species, emended diagnosis of the genus Amphiacantha and establishment of the new family Amphiacanthidae.},
  author={J. I. Ronny Larsson},
  journal={Folia parasitologica},
  year={2000},
  volume={47 4},
  pages={
          241-56
        }
}
  • J. Larsson
  • Published 2000
  • Biology, Medicine
  • Folia parasitologica
The ultrastructural cytology and reproduction of Amphiacantha longa Caullery et Mesnil, 1914 is described. Merogonial reproduction was not observed. The sporogony follows two lines: free disporoblastic and enveloped, polysporoblastic, involving sporoblast mother cells. The enveloped sporogony is endogenous in spore sacs of sporont origin, daughter cells are formed by vacuolation. Probably all stages have coupled nuclei. Both free and enveloped spores are equipped with an extrusion apparatus… Expand
The ultrastructure and reproduction of Amphiamblys capitellides (Microspora, Metchnikovellidae), a parasite of the gregarine Ancora sagittata (Apicomplexa, Lecudinidae), with redescription of the species and comments on the taxonomy.
TLDR
Both spore types have an extrusion apparatus of the metchnikovellidean type, with a polar sac devoid of anchoring disc, a polar filament with one manubroid and one bulbous part, and a posterior semicircular membrane fold enclosing rounded or tubular structures. Expand
Fine structure of Metchnikovella incurvata Caullery and Mesnil 1914 (microsporidia), a hyperparasite of gregarines Polyrhabdina sp. from the polychaete Pygospio elegans
TLDR
Results of the light- and electron-microscopy study of the Metchnikovella incurvata, isolated from lecudinid gregarines, parasitizing polychaetes Pygospio elegans in the White Sea littoral zone, are presented. Expand
Description of Metchnikovella spiralis sp. n. (Microsporidia: Metchnikovellidae), with notes on the ultrastructure of metchnikovellids
TLDR
A new species of microsporidium isolated from gregarines Polyrhabdina sp. Expand
Metchnikovella dogieli sp. n. (Microsporidia:Metchnikovellida), a parasite of archigregarines Selenidium sp.from polychaetes Pygospio elegans
TLDR
The analysis of cysts and spores of a metchnikovellid microsporidium found in several specimens of an archigregarine Selenidium sp. Expand
Genomic Survey of a Hyperparasitic Microsporidian Amphiamblys sp. (Metchnikovellidae)
TLDR
The presented data confirm the notion of Metchnikovellidae as a less derived microsporidian group, and provide an additional stepping stone for reconstruction of an evolutionary transition from the early diverging parasitic fungi to derived Microsporidia. Expand
A hyperparasitic microsporidian infecting the salmon louse, Lepeophtheirus salmonis: an rDNA-based molecular phylogenetic study.
TLDR
The microsporidian was found to group within the phylogenetic clade containing the family Enterocytozoonidae, being most similar to members of the intranuclear genus Nucleospora, the first report of a hyperparasitic microspora infecting a caligid copepod. Expand
Hyperspora aquatica n.gn., n.sp. (Microsporidia), hyperparasitic in Marteilia cochillia (Paramyxida), is closely related to crustacean-infecting microspordian taxa
TLDR
A new genus and species is erected to contain the hyperparasite of M. cochillia and Unikaryon legeri, and it is proposed that the paramyxid hyper parasite H. aquatica may eventually be detected as a parasite of marine crustaceans. Expand
Detection of the intranuclear microsporidian Enterospora nucleophila in gilthead sea bream by in situ hybridization.
TLDR
The study demonstrated a frequent disassociation between the presence of abundant spores and the intensity of the infections as determined by the parasite activity and will be a valuable tool for a more precise determination of parasite dissemination pathways and pathogeny mechanisms. Expand
Filling gaps in the microsporidian tree: rDNA phylogeny of Chytridiopsis typographi (Microsporidia: Chytridiopsida)
TLDR
The genetic and genomic data of additional members of Chytridiopsida and Rozellomycota will be of great value, not only to resolve phylogenetic relationships but also to improve the understanding of the evolution of these fascinating organisms. Expand
Microsporidian Biochemistry and Physiology
TLDR
This chapter focuses on keratin filaments found in two domains: within the spore stage, the microsporidian sporophorous vesicle, and keratin in the host cell cytoplasm domain but situated at its interface with the parasite. Expand
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