COMPARISON STUDIES OF THE PERMEABILITY OF LOWER PLANTS
ARMY BIOLOGICAL LABS FREDERICK MD
Pagination or Media Count:
With regard to the tests made with grampositive bacteria, B cereus and B subtilis became plasmolyzed in 1.0-mol. cane sugar and KNO3 solutions. It seems that the established non-plasmolyzability of gram-positive bacteria is caused by a tighter than usual cohesion of protoplast and cell membrane rather than by any great permeability of such cell membrane. The test results on B subtilis show that saccharose, glucose, and mannitol do not seem to permeate in detectable quantities into the cells during the test period of 40 minutes in other words, it would appear that the cells of B subtilis are much less permeable to saccharose, glucose, and mannitol than the examined gram-negative bacteria.