Ecdysis and the location of the plasma membrane in the dinoflagellateHeterocapsa niei |
| |
Authors: | Lenita C. Morrill |
| |
Affiliation: | (1) University of Houston Marine Science Program, 4700 Avenue U, 77550 Galveston, TX, USA |
| |
Abstract: | Summary The outer membrane is the plasma membrane in the pelliculate dinoflagellateHeterocapsa niei (Loeblich) Morrill and Loeblich, except when the cell is preparing to ecdyse and is forming a new amphiesma. At maturity the theca and pellicle are enclosed within a single large amphiesmal vesicle which surrounds the cell; thus, the amphiesmal components are intracellular. The plasma membrane lies outside this vesicle and is continuous with the flagellar membrane. At ecdysis retraction of the flagella and fusion of the innermost or cytoplasmic membrane over the flagellar region facilitates the shedding of all layers external to the cytoplasmic membrane. This membrane eventually becomes the bounding membrane (plasma membrane) of the reformed amphiesma. |
| |
Keywords: | Amphiesma Dinoflagellate Ecdysis Heterocapsa niei Plasma membrane |
本文献已被 SpringerLink 等数据库收录! |
|