Observations on Spermatogenesis and Inseminative Behavior of Megalodiscus temperatus Adults in Frogs

Publisher Website
Google Scholar
Abstract
Upon in vitro exposure to 3H-adenosine, spermatogonial cells in adult M. temperatus [a parasite of Rana pipiens] were readily labeled on autoradiograms. At least 20 days were required for these cells to produce labeled sperm, the longest time reported so far for digenetic termatodes. Labeled worms transplanted to hosts for 24-31 days showed both self- and cross-insemination in multiple infections. When alone, half of the transplanted adults self-inseminated.