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1998 | 43 | 1 |

Tytuł artykułu

Influence of crowding of Hymenolepis diminuta [WMS il1] on structure of strobila

Autorzy

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
On average, hermaphroditic proglottids of 10- month-old Hymenolepis diminuta proceeding from WMS il1 contained more testes when tapeworms were cultured in crowded populations (44-48 individuals) than in lower density (4-6 individuals). Furthermore, one average-sized testis from a tapeworm of the crowded population accounted for a relatively greater part of proglottid volume than did one in tapeworms from the low-density populations. These same populations - both low-density and crowded - included tapeworms with unilateral positioning of genital ducts and pores, or with changes in the positioning of these organs in strobilae. This variability is correlated positively with the number of proglottids of type 2p1a (containing two testes on the poral side and one on the aporal), and negatively with the numbers of types 1p2a, 0p3a and 1p3a (P<0.01).

Wydawca

-

Czasopismo

Rocznik

Tom

43

Numer

1

Opis fizyczny

p.30-35,fig.

Twórcy

autor
  • Department of General Biology and Parasitology, Institute of Biostructure, Medical School, Chalubinskiego 5, 02-004 Warsaw, Poland

Bibliografia

  • Chandler A. C. 1939. The effects of number and age of worms on development of primary and secondary infections with Hymenolepis diminuta in rats, and an investigation into the true nature of “premunition” in tapeworm infections. American Journal of Hygiene, 29, 105-114.
  • Czapliński B., Vaucher C. 1994. Family Hymenolepididae Ariola, 1899. In: Keys to the cestode parasites of vertebrates (Eds. L. F. Khalil et al.). CAB International, 595-663.
  • Hager A. 1941. Effects of dietary modification of host rats on the tapeworm Hymenolepis diminuta. Iowa State College Journal of Science, 15, 127-153.
  • Hesselberg C. A., Andreassen J. 1975. Some influences of population density on Hymenolepis diminuta in rats. Parasitology, 71, 517-523.
  • Hunninen A. V. 1935. Studies on the life history and host-parasite relations of Hymenolepis fraterna (H. nana var. fraterna) in white mice. American Journal of Hygiene, 22, 414-443.
  • Johri G. N. 1959. Studies on some cestode parasites. III. Variability in the number and position of testes in some unarmed species of Hymenolepis from mammals. Proceedings of the National Academy of Sciences, India, Sect. B, 29, 134-142.
  • Korpaczewska W. 1963. Formation of a population structure and cestode complexes in water birds. Acta Parasitologica Polonica, 11, 337-344.
  • Montgomery S. S. J., Montgomery W. I., Dunn T. S. 1987. Biochemical, physiological and morphological variations in unarmed hymenolepidids (Eucestoda: Cyclophyllidae). Zoological Journal of the Linnean Society, 91, 293-324.
  • Read C. P. 1951. The “crowding effect” in tapeworm infections. Journal of Parasitology, 37, 174-178.
  • Read C. P., Schiller E. L., Phifer K. 1958. The role of carbohydrates in the biology of cestodes. V. Comparative studies on the effects of host dietary carbohydrate on Hymenolepis spp. Experimental Parasitology, 7,198-216.
  • Roberts L. S. 1964. Host dietary carbohydrate and the “crowding effect” in cestodes. Journal of Parasitology, 50, Sect.2, Suppl., 31.
  • Schiller E. L. 1952. Studies on the helminth fauna of Alaska. X. Morphological variation in Hymenolepis horrida (von Linstow, 1901) (Cestoda: Hymenolepididae). Journal of Parasitology, 38, 554-568.
  • Schorb D. A. 1933. Host-parasite relations of Hymenolepis fraterna in the rat and mouse. American Journal of Hygiene, 18, 74-113.
  • Stradowski M. 1973. A study of Diorchis stefanskii Czapliński, 1956 populations (Cestoda, Hymenolepididae) in experimentally infected domestic ducks. Acta Parasitologica Polonica, 21, 349-357.
  • Stradowski M. 1993. Variability of the position of organs in Hymenolepis diminuta at different ages. Acta Parasitologica, 38, 23-28.
  • Stradowski M. 1994. Evidence of a crowding effect on the morphology of Hymenolepis diminuta proceeding from WMS inbred line 1. Acta Parasitologica, 39, 192-196.
  • Stradowski M. 1996. Crowding effect in the period of intensified variability of proglottids in Hymenolepis diminuta. Wiadomości Parazytologiczne, 42, 185-195.
  • Tenora F., Asakawa M., Kamiya M. 1994. Hymenolepis pseudodiminuta sp. n. (Cestoda: Hymenolepididae) from Apodemus spp. (Rodentia: Muridae) in Japan. Helminthologia, 31, 185-189.
  • Voge M. 1952. Variation in some unarmed Hymenolepididae (Cestoda) from rodents. University of California Publications in Zoology, 57, 1-36.
  • Wardle R. A., Green N. K. 1941. The rate of growth of the tapeworm Diphyllobothrium latum (L.). Canadian Journal of Research, 19, 245-251.
  • Wiśniewski W. L., Szymanik K., Bażańska K. 1958. The formation of a structure in tapeworm populations. Československá Parasitologie, 5,195-212.
  • Woodland W. N. F. 1924. On the life cycle of Hymenolepis fraterna (H. nana var. fraterna Stiles) in the white mouse. Parasitology, 16, 69-83.
  • Zavras E. T, Roberts L. S. 1984. Developmental physiology of cestodes: Characterization of putative crowding factors in Hymenolepis diminuta. Journal of Parasitology, 70, 937-944.

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Bibliografia

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