Liberation and Osmotic Properties of the Protoplasts of Micrococcus lysodeikticus and Sarcina lutea
- 1 December 1956
- journal article
- research article
- Published by Microbiology Society in Journal of General Microbiology
- Vol. 15 (3), 512-520
- https://doi.org/10.1099/00221287-15-3-512
Abstract
SUMMARY: Stable protoplasts may be released from Micrococcus lysodeikticus and Sarcina lutea by digestion of the cell-wall with lysozyme in sucrose or NaCl solutions having an osmotic pressure of some 25 atmospheres, but not in glycerol solutions of the same osmotic pressure. The stability of the protoplasts depends not only upon the depression of the water activity by the solute but upon an osmotic pressure exerted against the protoplast (plasma-) membrane. The permeability of the protoplast membrane to a number of solutes resembles that of the osmotic barrier of intact Staphylococcus aureus.Keywords
This publication has 1 reference indexed in Scilit:
- Osmotic properties of protoplasts of Bacillus megateriumExperimental Cell Research, 1955