Morphology and Growth Behaviour of Myelin Figures of Lecithin
- 1 September 1985
- journal article
- liquid crystals
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 130 (1) , 203-222
- https://doi.org/10.1080/00268948508079512
Abstract
Growth behaviour and morphological features of myelin figures in egg-yolk lecithin/hydrophilic liquid systems were investigated by microscopic observation at room temperature. The morphological features were conveniently classified into three steps according to the time of growth. In the first step, myelin figures with a simple rod-like form rapidly grew all together perpendicularly to the circumference of a lecithin block into the medium. In the second step, more complicated forms, such as helical and coiling ones, occurred. In the third step, the parts where a contact between surfaces of neighbouring rods had occurred wcre associated, fused and transformed into a mosaic structure. The representative growth mechanism of each of these three steps was dependent mainly on a diffusion of aggregates of lecithin molecules towards myelin figures near their roots, on a lateral diffusion in the bilayer along the long axis of a myelin figure and on a lateral diffusion in the bilayer around the long axis, respectively.Keywords
This publication has 9 references indexed in Scilit:
- Concentration gradient along the long axis of myelin figures of phosphatidylcholineBiochimica et Biophysica Acta (BBA) - Biomembranes, 1985
- Optical microscopic study of helical superstructures of chiral bilayer membranesJournal of the American Chemical Society, 1985
- Growth mechanism of myelin figures of phosphatidylcholineBiochimica et Biophysica Acta (BBA) - Biomembranes, 1984
- Undulating paired disclinations (oily streaks) in lyotropic liquid crystalsJournal de Physique, 1984
- Magnetic-field-induced orientation and bending of the myelin figures of phosphatidylcholineBiochimica et Biophysica Acta (BBA) - Biomembranes, 1983
- Phospholipid bilayer deformations associated with interbilayer contact and fusionNature, 1981
- Do ‘lipidic particles’ represent intermembrane attachment sites?Nature, 1980
- Defect structures in lyotropic smectic phases revealed by freeze-fracture electron microscopyPhilosophical Magazine, 1977
- Maximum and minimum values for lecithin classes from various biological sourcesCanadian Journal of Biochemistry, 1968