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1995 | 41 | 1 |

Tytuł artykułu

Intensified morphological variability during patency in Hymenolepis diminuta originating from inbred tapeworm - WMS IL1

Autorzy

Treść / Zawartość

Warianty tytułu

PL
Nasilona zmiennosc morfologiczna w okresie patentnym u Hymenolepis diminuta pochodzacych z hodowli wsobnej tasiemca - WMS IL1

Języki publikacji

EN

Abstrakty

EN
Variable position of genital ducts and pores (PGP) was found in 23.3% of five months old tapeworms obtained as a result of administering to rats a dose of 6 cysticercoids proceeding from the third generation of inbred Hymenolepis diminuta - WMS il1. In tapeworms coming from generations no 18 and 32 PGP changes were reported only in 7.5 month, with only 5.9% of strobilas in the 32 generation group being characterized by this feature. These results indicate a time shift with respect to the appearance of PGP changes in tapeworms proceeding from latter inbred generations to a further period of tapeworm invasion in rats. The number of PGP changes is positively correlated with the number of type 2p1a proglottids (two testes on the poral and one on the aporal side). The average number of type Op3a proglottids increases with the number of generations. In 5-month old tapeworms of unilateral PGP coming from generation no 3, 18 and 32 it amounts to 5.9%, 6.6% and 8.1 %, respectively.

Wydawca

-

Rocznik

Tom

41

Numer

1

Opis fizyczny

s.33-41, rys.,tab.,bibliogr.

Twórcy

autor
  • Akademia Medyczna, 02-004 Warszawa, ul.Chalubinskiego 5

Bibliografia

  • JONES A. W., FITZGERALD M. D., PROFFITT M. R., TAN B. D., WARD H. D. 1971. Prolonged selfing in Hymenolepis microstoma (Cestoda). Experimental Parasitology 29: 223-229.
  • NAKAMURA F., OKAMOTO K. 1993. Reconsideration on the effects of selfing on the viability of Hymenolepis nana. International Journal for Parasitology 23 (7): 931-936.
  • PALAIS M. 1933. Les anomalies des Cestodes. Recherches experimentales sur Hymenolepis diminuta (Rud.). Annales de la Faculté des Sciences de Marseille, Ser. 2, 6: 111-163.
  • PAPPAS P. W., LEIBY D. A. 1986. Variation in the sizes of eggs and oncospheres and the numbers and distributions of testes in the tapeworm, Hymenolepis diminuta. The Journal of Parasitology 72: 383-391.
  • READ C. P. 1967. Longevity of the tapeworm, Hymenolepis diminuta. Ibidem 53: 1055-1056.
  • ROGERS W. A., ULMER M. J. 1963. Effects of continued selfing on Hymenolepis nana (Cestoda). Proc. Iowa Acad. Science 69: 557-571.
  • STRADOWSKI M. 1982. Morphological deviations of Hymenolepis diminuta in one-specimen successive generations. Molecular and Biochemical Parasitology, (Suppl.) Abstracts of the Fifth International Congress of Parasitology, Toronto, Canada: 120-121.
  • - 1988. Significant morphological features of the WMS inbred line 1 of Hymenolepis diminuta. V-th European Multicolloquium of Parasitology. Budapest, Hungary, P2: 22.
  • - 1989. Correlations between testes' position and genital pore placement in Hymenolepis diminuta. Acta Parasitologica Polonica 34: 145-153.
  • - 1993. Variability of the position of organs in Hymenolepis diminuta tapeworm at different ages. Acta Parasitologica 38: 23-28.
  • - 1994a Effects of inbreeding Hymenolepis diminuta (Cestoda). Ibidem 39: 146-149.
  • - 1994b. Evidence of a crowding effect on the morphology of Hymenolepis diminuta tapeworms proceeding from inbred WMS inbred line 1. Ibidem 39: 192-196.
  • SULGOSTOWSKA T. 1974. The development of organ systems in cestodes. II. Histogenesis of the reproductive system in Hymenolepis diminuta (Rudolphi 1819) (Hymenolepididae). Acta Parasitologica Polonica 22: 179-190.
  • VOGE M. 1952a. Variation in some unarmed Hymenolepididae (Cestoda) from rodents. University of California Publications in Zoology 57: 1-36.
  • - 1952b. Variability of Hymenolepis diminuta in the laboratory rat and in the ground squirrel Citellus leucurus. The Journal of Parasitology 38: 454-456.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-aa6ad974-8abe-4806-bbd5-c4343c93f130
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