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Vitellogenesis in two spathebothriidean cestodes
The ultrastructural features of vitellogenesis in spathebothriideans resemble those reported previously in “lower” cestodes, especially in pseudophyllideans.
Spermiogenesis in the caryophyllidean cestode Khawia armeniaca (Cholodkovski, 1915)
Ulastructural data of spermiogenesis in K. armeniaca may support the hypothesis that the Caryophyllidea are secondarily derived from an ancestor closely allied with the Pseudophyllides and/or spathebothriideans.
Vitellogenesis and vitelline system in the pseudophyllidean tapeworm Paraechinophallus japonicus: ultrastructural and cytochemical studies.
- C. Levron, L. Poddubnaya, R. Kuchta, M. Freeman, T. Scholz
- Biology, MedicineFolia parasitologica
- 1 March 2007
The vitellogenesis of Paraechinophallus japonicus (Yamaguti, 1934), the first pseudophyllidean tapeworm of the family Echinophallidae studied using transmission electron microscope, is described on…
Vitellocyte ultrastructure in the cestode Didymobothrium rudolphii (Monticelli, 1890): possible evidence for the recognition of divergent taxa within the Spathebothriidea
The comparative data demonstrate that vitelline material morphology has unique features in three spathenothriidean genera and may be used as evidence for the recognition of separate taxa.
On the Position of Archigetes and Its Bearing on the Early Evolution of the Tapeworms
- P. Olson, L. Poddubnaya, D. Littlewood, T. Scholz
- Biology, MedicineThe Journal of parasitology
- 1 August 2008
Phylogenetic analyses favor the interpretation that sexual maturity of Archigetes sp.
Spermatological characters of the pseudophyllidean cestode Bothriocephalus scorpii (Müller, 1776).
The organization of the posterior extremity of the gamete with the nucleus is described for the first time in the Pseudophyllidea and appears to be a specific feature for the clade "Bothriocephalidea".
Caryophyllidea of the USSR fauna.
Ultrastructural features of the spermatozoon and its differentiation in Brandesia turgida (Brandes, 1888) (Digenea, Microphalloidea, Pleurogenidae)
- M. Bruňanská, T. Brázová, A. Zhokhov, L. Poddubnaya
- Biology, MedicineParasitology Research
- 26 April 2014
Variations of the spermatozoa ultrastructural characters within Digenea, in particular, between different families of the superfamily Microphalloidea, are discussed.
Structure of Reproductive System of the Amphicotyllide Cestode Eubothrium rugosum (Cestoda, Pseudophyllidae)
- L. Poddubnaya
- BiologyJournal of Evolutionary Biochemistry and…
- 1 May 2003
An interconnection is traced between the degree of egg maturation in the uterus and morphology of uterus and vittelicles and with other ultrastructural peculiarities of organization of the reproductive system in the earlier studied species of pseudophyllid cestodes, Diphyllobothrium latum.
Ultrastructure of the intrauterine eggs of Didymobothrium rudolphii (Monticelli, 1890) (Cestoda, Spathebothriidea, Acrobothriidae) and its phylogenetic implications
Individual eggs containing several blastomeres of different sizes were seen in the middle and distal regions of the uterus, providing indirect evidence that at least a few initial cleavage divisions must take place in the intrauterine eggs and direct evidence that the early embryonic development of D. rudolphii starts in utero.