Effect of yeast cell membrane components on the IR spectrum of the cell

: IR-technique was used to study the effect of yeast cells treatment by water-alcohols mixtures on the quantitative relationship between the intensities of different bands in the spectra. The analysis of spectra made it possible to suggest that the reflection of the IR-irradiation from the cell is governed by the nucleoprotein layer of its envelope. It is shown that the treatment of yeast cell with ribonuclease raises the "IR-permeability" of the cell envelope.