Surface membrane regeneration in deciliated Tetrahymena.
The induced synthesis of identified surface membrane proteins has been demonstrated in deciliated Tetrahymena. Cells in the process of regenerating cilia were also studied using transmission electron microscopy in order to obtain information on the deployment of new membrane at the cell surface. The results obtained suggest a pattern of membrane flow that includes the 'pellicular alveoli', a subsurface membrane system characteristically present in ciliated protozoa. The results of 125I surface-marking experiments were consistent with the notion that new membrane is added initially in non-ciliated regions, then subsequently flows laterally to cover regenerating cilia.
D000818:Animals; D001345:Autoradiography; D002462:Cell Membrane / Q000648:ultrastructure; D002923:Cilia / Q000648:ultrastructure; D008565:Membrane Proteins / Q000096:biosynthesis; D008854:Microscopy, Electron; D013768:Tetrahymena / Q000378:metabolism / Q000648:ultrastructure*
D008565:Membrane Proteins