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A Comparative Study Of The Effects Of Starvation On Two Mating Types Of Tetrahymena Pyriformis, Carolyn Gene Mohler
A Comparative Study Of The Effects Of Starvation On Two Mating Types Of Tetrahymena Pyriformis, Carolyn Gene Mohler
Theses & Honors Papers
The initial observable event in protozoan conjugation is the union, by pairs, of cells belonging to opposite mating types. The union does not occur immediately after mixing appropriate mating types; a starvation-initiated period (the refractory period) of approximately 4 hours is prerequisite for mating between the two mating types of variety 1, Tetrahymena pyriformis employed in this study.
The results of this study indicate that water-diffusible mating substances are produced by the mating types during the refractory period. The production of these substances is initiated by placing the cells under starvation conditions and not by contacts among cells of opposite …