Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Observations on Ligated Adults of Philophthalmus megalurus, Gorgoderina attenuata, and Megalodiscus temperatus by Scanning Electron Microscopy and Autoradiography

Paul M. Nollen and Mathew J. Nadakavukaren
The Journal of Parasitology
Vol. 60, No. 6 (Dec., 1974), pp. 921-924
DOI: 10.2307/3278512
Stable URL: http://www.jstor.org/stable/3278512
Page Count: 4
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Observations on Ligated Adults of Philophthalmus megalurus, Gorgoderina attenuata, and Megalodiscus temperatus by Scanning Electron Microscopy and Autoradiography
Preview not available

Abstract

Scanning electron micrographs showed damage to the tegument adjacent to ligatures of adult Philophthalmus megalurus, Gorgoderina attenuata, and Megalodiscus temperatus. Leakage of tritiated tyrosine, leucine, and thymidine was detected around the ligatures on adult P. megalurus by an autoradiographic method that localizes soluble compounds. Grain counts were significantly higher adjacent to ligatures than elsewhere. Autoradiography did not indicate leakage in some ligated worms, but all observed with the scanning electron microscope exhibited tissue damage. The technique of ligation is thus considered unreliable for absorption studies involving digenetic trematodes.

Page Thumbnails

  • Thumbnail: Page 
921
    921
  • Thumbnail: Page 
922
    922
  • Thumbnail: Page 
923
    923
  • Thumbnail: Page 
924
    924