Stimulated Raman Scattering in Aqueous Alternanthera Mosaic Virus and Potato Virus X Suspensions in the Frequency Range of 20-60 GHz

Spectra of Raman scattering in the range of about 20 to 60 GHz are measured in Tris suspensions of the morphologically similar Alternanthera mosaic virus and potato virus X. Lines are observed whose frequency shift does not agree with the calculated values of the dominant vibrational modes in the mechanical model of the investigated virions as a single whole. These frequencies are related, in our opinion, to acoustical vibrations of functional groups of proteins and amino acids.

Automated summary

Raman scattering spectra of Tris suspensions of Alternanthera mosaic virus and potato virus X were measured, and it was found that the observed frequency shifts did not agree with the calculated values based on the mechanical model of the virions. These frequencies are speculated to be related to acoustical vibrations of functional groups in proteins and amino acids.