Ref ID : 3764
John Heumann; Conjugation in the Hypotrich Ciliate, Paraurostyla weissei (Stein): A Scanning Electron Microscope Study. J.Protozool. 22(3):392-397, 1975
Reprint
In File
Notes
Conjugation in Paraurostyla weissei has been investigated by scanning electron microscopy. In the course of conjugation, one member of each conjugating pair is resorbed. An organism that is being resorbed always lies to its partner's left and is always fused to its partner's oral region. A mechanism for the development of this asymmetry is proposed, based on the asymmetry of individual Paraurostyla. After resorption is complete, exconjugants enter a rounded, nonmotile stage which lasts several days. Exconjugants at this stage have been compared with cysts and have been found to be dissimilar.