
%0 Journal Article
%A Doughty, C.J 
%A Hope, A.B 
%T Effects of Ultraviolet Radiation on the Plasma Membranes of <i>Chava corallina</i>. III* Action Spectra
%J Functional Plant Biology
%D 1976/10/01
%V 3
%N 5
%P 693-699
%K 
%R https://doi.org/10.1071/PP9760693
%U https://www.publish.csiro.au/paper/PP9760693 
%X Action spectra have been determined for the effects of 300 s of U.V. irradiation on the potential difference and conductance of the plasmalemma in cells of C, couallina. Wavelengths for maximum effect were 240-2.50 nm and 285 nm. The target molecules are tentatively identified as protein molecules containing vulnerable amino acids such as cystine, since this has high photochemical lability to 250-nm U.V. Absorption at 285 nm could be by aromatic amino acids in the same or different proteins. A schematic model for the various u.v.-sensitive membrane properties is given, based on the fluid mosaic model of cell membranes. 
