COMPARISON STUDIES OF THE PERMEABILITY OF LOWER PLANTS

Abstract

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 25, 1965
Accession Number
AD0839528

Entities

People

  • J. E. Elo

Organizations

  • United States Army Biological Warfare Laboratories

Tags

DTIC Thesaurus Topics

  • Bacteria
  • Biological Laboratories
  • Blood Coagulation
  • Cell Membrane
  • Cell Size
  • Cells
  • Cellular Structures
  • Coefficients
  • Culture Media
  • Diffusion
  • Errors
  • Government (Foreign)
  • Gram-Negative Bacteria
  • Gram-Positive Bacteria
  • Mannitol
  • Partial Pressure
  • Test Methods

Readers

  • Microbial Pathology
  • Underwater engineering and Marine Technology.