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Asexual Reproduction In Planaria Characteristics Of The Inhibitor(S), Linda Gail Sheffield
Asexual Reproduction In Planaria Characteristics Of The Inhibitor(S), Linda Gail Sheffield
Theses and Dissertations
A study was made of the postulated fission-inhibiting substance located in the cephalic region of Dugesia dorotocephala. Rearing decapitated planaria in four different concentrations (25, 50, 75 or 100 ug/ml) of head or whole body extract resulted in a positive correlation between the inhibition of fission rate and the concentration of extract. The difference in inhibitory activity between the two types of extracts was three percent at maximum. The inhibitory substance was partially inactivated at 60° C. There was a direct correlation between the length of time that the extract was heated and the inactivation of inhibitor. The active substance …
Asexual Reproduction In Planaria Studies On Inhibition, Hal R. Fitzgerald
Asexual Reproduction In Planaria Studies On Inhibition, Hal R. Fitzgerald
Theses and Dissertations
The invertebrates display several methods of asexual reproduction, such as fission and gemnule formation and budding (Hay, 1966). Planaria reproduce asexually only by fission.