Nom du corpus

Corpus Systématique Animale

Titre du document

Ultrastructure of sperm and spermiogenesis of Pterastericola astropectinis (Platyhelminthes, Rhabdocoela, Pterastericolidae)

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Vers_v2b_00603
Auteur(s)
  • N. A. Watson 1
  • K. Rohde 1
  • U. Jondelius 2
Affiliation(s)
  • 1) Department of Zoology, University of New England, 2351, Armidale, NSW, Australia
  • 2) Department of Zoology, University of Göteborg, P.O. Box 25059, S-40031, Göteborg, Sweden
Résumé

During development of the spermatid, two free flagella are transported distally from the main spermatid mass by elongation of the shaft. They rotate back towards the shaft and lie parallel with it prior to fusion in a distal-proximal direction. This process conforms to that found in other free-living platyhelminths that have fused or adjoined axonemes in their sperm (Acoela, Kalyptorhynchia, Polycladida). It is basically different from the process of fusion in the majority of neodermatan species (major groups of parasitic platyhelminths), where the attachment of axonemes remains near the main spermatid body, a median process grows out between them, the nucleus and mitochondria migrate into this process and axonemes then fuse with it in a proximal-distal manner.Pterastericola astropectinis also differs from the Neodermata in the presence of dense bodies in the sperm. The ultrastructure of the sperm, spermiogenesis and protonephridia does not support the view of a close affinity between Pterastericolidae and Neodermata.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - mycology & parasitology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - genetique des eucaryotes. evolution biologique et moleculaire
Catégories Scopus
  • 1 - Health Sciences ; 2 - Medicine ; 3 - Infectious Diseases
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Insect Science
  • 1 - Health Sciences ; 2 - Veterinary ; 3 - General Veterinary
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
  • 1 - Life Sciences ; 2 - Immunology and Microbiology ; 3 - Parasitology
Catégories WoS
  • 1 - science ; 2 - parasitology
Identifiant ISTEX
79B3BA1236081A87F966260B448A420657ADBF77
Revue

Parasitology Research

Année de publication
1993
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
6.981
Sous-corpus
  • Vers
Type de publication
Journal
ark:/67375/1BB-8NZZ3KK4-3
Powered by Lodex 9.3.8