A comparative study of submicroscopic structures of protoplasts of various yeast species |
| |
Authors: | Marie Havelková |
| |
Institution: | (1) Institute of General Biology, School of Medicine, Purkyně University, Brno |
| |
Abstract: | A submicroscopic structure was studied of protoplasts of five different yeast species multiplying by budding, formation of
cross septum and by a division typical for apiculate yeasts. The protoplasts retain their species specificity. Most considerable
changes typical for the conversion of a cell to protoplast are found in membrane cell systems. The reduction of membranes
of the endoplasmic reticulum is particularly striking. Both membrane units are frequently separated from each other by lenticular
pseudovacuoles. Mitochondria in protoplasts are swollen and their number is reduced approximately two-fold. Defects are often
observed in a nuclear membrane. The perinuclear space is usually extended by lenticular pseudovacuoles. A large number of
vacuoles is observed in the basic protoplast cytoplasm. The surface of the protoplasts of all species studied is formed only
by a cytoplasmic membrane. A partially digested original cell wall often adheres to protoplasts ofSchizosaccharomyces pombe. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|