Comparative ultrastructural studies on uterus-egg interrelations in some species of hymenolepidids [Cestoda] with aquatic life cycles

• Autorzy: Chomicz L
• Języki publikacji: EN

Abstrakty

EN

Adult specimens of four hymenolepidid species with aquatic life cycle: Microsomacanthus paracompressa (Czapliński, 1956) Spasskaya et Spasskii, 1961, Diorchis parvogenitalis (Skryabin et Matevosyan, 1945), Fimbriaria fasciolaris (Pallas, 1781) and Fimbriaria czaplinskii Grytner-Zięcina, 1994 were used to study and compare uterus-egg interrelation at the ultrastructural level (TEM and SEM). Results of the presented studies showed that in none of the species examined was the uterus merely a simple sac filled with eggs. At the final stage of development of infective eggs which was available for analysis, several tapeworms displayed significant differences in: (1) general architecture of uterus, (2) the ultrastructure of the uterine wall at the lumenal side, (3) the extent of connections between the uterine wall and the eggs, and (4) the ultrastructure of the outermost envelope surrounding the oncospheres. Details of ultrastructure of uterus-egg interrelations are presented and discussed.

Słowa kluczowe

EN

egg morphology; parasite; uterine wall; aquatic host; Cestoda; uterus morphology; uterus-egg interrelation; life cycle; hymenolepidid; ultrastructure; egg

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 1996
• Tom: 41
• Numer: 4
• Opis fizyczny: p.191-198,fig.

Twórcy

autor

Chomicz L

• Department of General Biology and Parasitology, Medical School, Chalubinskiego 5, 02-004 Warszawa, Poland

Bibliografia

• Chomicz L. 1993. Ultrastructural studies on the oncospheral envelopes of six species of genus Diorchis (Cyclophyllidea, Hymenolepididae). Acta Parasitologica, 38, 161-165.
• Chomicz L., Czubaj A. 1991. Transmission electron micrograph studies of developing oncospheral envelopes of Fimbriaria fasciolaris (Hymenolepididae). Parasitology Research, 77, 503-508.
• Chomicz L., Czubaj A. 1992. Comparative studies on the differentiation of inner oncospheral envelope in some species of Hymenolepididae (Cestoda). Proceedings of the 10th European Congress on Electron Microscopy, September 7-11, 1992, Granada, 3, 329-330.
• Chomicz L., Swiderski Z., Grytner-Zięcina B. 1994. Studies on the infective eggs of the cestode Fimbriaria fasciolaris Pallas 1781 (Cyclophyllidea, Hymenolepididae). Proceedings of the 13th International Congress on Electron Microscopy, July 17-22, 1994, Paris, 1429-1430.
• Chomicz L., Grytner-Zięcina B., Walski M. 1995a. Morphological studies on envelopes of oncospheres of the hymenolepidid cestode, Fimbriaria fasciolaris (Pallas, 1781). Acta Parasitologica, 40, 26-30.
• Chomicz L., Swiderski Z., Grytner-Zięcina B. 1995b. Ultrastructure of oncospheral envelopes and their differentiation in the cestode, Dicranotaenia coronula (Dujardin, 1845) (Cyclophyllidea, Hymenolepididae). Acta Parasitologica, 40,31-36.
• Coil W. H. 1991. Platyhelminthes: Cestoidea. In: Microscopic anatomy of invertebrates. Platyhelminthes and Nemertinea. Vol. 3, (Ed. F. W. Harrison). Wiley-Liss, Inc., New York, 211-283.
• Conn D. B. 1993. Ultrastructure of the gravid uterus of Hymenolepis diminuta (Platyhelminthes: Cestoda). Journal of Parasitology, 79, 583-590.
• Czapliński B., Vaucher C. 1994. Family Hymenolepididae Ariola, 1899. In: Keys to the cestode parasites of vertebrates, (Eds. F. F. Khalil et al.). CAB International, Wallingford, 595-635.