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    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.
    BIRD, ALAN F. and BIRD, JEAN 1991. The Structure of Nematodes. p. 183.
    Batson, B.S. 1979. Ultrastructure of the trophosome, a food-storage organ in Gastromermis boophthorae (Nematoda: Mermithidae). International Journal for Parasitology, Vol. 9, Issue. 6, p. 505.
    Nwosu, Alphonsus B.C. 1978. Energy cost of locomotory activity in larval hookworms. International Journal for Parasitology, Vol. 8, Issue. 2, p. 85.
    Munn, Edward A. 1977. A helical, polymeric extracellular protein associated with the luminal surface of Haemonchus contortus intestinal cells. Tissue and Cell, Vol. 9, Issue. 1, p. 23.
    Dewel, Ruth Ann and Clark, Wallis H. 1973. Studies on the tardigrades. III. Fine structure of the esophagus of milnesium tardigradum doyère. Tissue and Cell, Vol. 5, Issue. 1, p. 161.
    Smith, Kenneth and Harness, Eric 1972. The ultrastructure of the adult stage of Trichostrongylus colubriformis and Haemonchus placei. Parasitology, Vol. 64, Issue. 02, p. 173.
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The fine structure of the alimentary tract of third-stage larvae of Haemonchus placei and Trichostrongylus colubriformis

  • Kenneth Smith (a1) and Eric Harness (a1)
Extract

A comparative study was made of defined regions of the alimentary tract of third-stage larvae of T. colubriformis and H. placei. The general organization of the tract was similar in both nematodes. The mouth, buccal cavity and oesophagus were lined with cuticle. Muscle cells, apical cells and gland cells were present in the oesophagus. In both species the gland cells contained secretory granules of similar morphology. The lumen of the intestine was ill-defined and apparently nonfunctional. Dense bodies observed in the intestinal cells differed in the two species.

We are grateful to Dr D. W. Brocklesby for his help and advice. We would also like to thank Dr D. L. Lee and Dr W. G. MacMillan for helpful discussions.

Copyright
COPYRIGHT: © Cambridge University Press 1971
References
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Harness, E., Fitzsimmons, W. M. & Sellwood, S. A. (1970). Experimental Haemonchus placei infection in calves. Journal of Comparative Pathology 80, 173–9.
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Lee, D. L. (1968). The ultrastructure of the alimentary tract of the skin-penetrating larva of Nippostrongylus brasiliensis (Nematoda). Journal of Zoology, London 154, 9–18.
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Smith, K. (1969). A method of processing third-stage larvae of the nematode Trichostrongylus colubriformis for electron microscopy. Journal of Microscopy 89, 287–90.
Smith, K. (1970). Electron-microscopical observations on the body wall of third-stage larva of Haemonchus placei. Parasitology 60, 411–16.
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Parasitology
  • ISSN: 0031-1820
  • EISSN: 1469-8161
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