Meny

Du är här

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

Författare:
Publiceringsår: 2006
Språk: Engelska
Sidor: 233-248
Publikation/Tidskrift/Serie: European Journal of Protistology
Volym: 42
Nummer: 4
Dokumenttyp: Artikel
Förlag: Elsevier

Sammanfattning

The ultrastructural cytology and reproduction of the hyperparasitic microsporidium Amphiamblys copitellides (Caullery and Mesnil, 1897) is described. Merogonial reproduction was not observed. The sporogony comprises two sequences: a sac-bound sporogony in close contact with the cytoplasm of the host and a free sporogony in parasitophorous vacuoles. The free sporogony, which probably precedes the sac-bound, yields a small number of rounded spores. The sac-bound sporogony is polysporoblastic, generating two rows of elongated spores. All stages have isolated nuclei. 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. Hosts are gregarines of the species Ancora sagittata living in the intestine of polychaetes of the genus Capitella, probably the species Capitella giardi. The cytology, life cycle and classification are discussed. The species is redescribed and the diagnosis of the genus Amphiamblys Caullery and Mesnil, 1914 is emended.

Disputation

Nyckelord

  • Biology and Life Sciences
  • gregarines
  • polychaetes
  • microsporidia
  • Amphiamblys capitellides
  • classification
  • ultrastructure

Övriga

Published
Yes
  • ISSN: 0932-4739

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen