Local accumulation of membrane-associated calcium according to cell pattern formation inMicrasterias denticulata,visualized by chlorotetracycline fluorescence |
| |
Authors: | Ursula Meindl |
| |
Institution: | (1) Institut für Botanik, Universität Salzburg, Lasserstrasse 39, A-5020 Salzburg |
| |
Abstract: | Summary Developing cells ofMicrasterias denticulata Bréb. show a characteristic fluorescence of the plasma membrane (or cortical protoplasm) after treatment with chlorotetracycline (CTC), which is known to be an indicator for membrane-bound Ca2+. Depending on the stage of development the fluorescing sites of the young half cell are distributed in a specific pattern which corresponds to cell pattern formation. Therefore growth and thus cytomorphogenesis inMicrasterias seem to be mediated by a patterned accumulation of Ca2+ at the periphery of the differentiating cell. Participation of Ca2+ in a membrane-recognition process responsible for local vesicle incorporation is discussed. |
| |
Keywords: | Ca2+ accumulation Membrane differentiation Chlorotetracycline Cytomorphogenesis Micrasterias |
本文献已被 SpringerLink 等数据库收录! |