[Spectral transformations of photoproducts in Halobacterium halobium cells]

Long-living spectral products observed earlier in purple membranes (PM) are discovered in the cells of Halobacterium halobium (Hh) under the action of yellow light. Blue spectral region of the light has been found to be optimal for PM arising in the cells cultivated under light. On the basis of the changes discovered in the optical spectra of Hh we may suppose that PM arising in the cells, is the dark processes, occur due to a hypothetic enzyme, which appears under light. The rate of PM arising is maximal during the periods of thermogenesis maximum.