Experiments on the influence of laser light on some biological elements of the natural environment

Studies the effects of exposure to light of the laser diode Melles Griot (λ = 670nm), He‐Ne laser (λ = 632.8nm) and argon laser (λ = 514nm) on selected soil micro‐organisms, fungi that destroy old manuscripts, pictures, stone, etc. and on humification and mineralization of soil samples. Also studies exposure effects on seed growth and biomass production of a few species of cultivated plants and on Chlorella cells and animal spermatozoa. Finds significant changes in comparison to control material (including results of the preliminary measurement of bio‐photon emission). Suggests a fruitful direction for studies on the synergistic effects of Se, laser and white light, as well as on the optimal level of exposure of living material to laser light. Concludes that the data obtained seem to be useful both for land reclamation and for the protection of the indoor environment against toxicogenic moulds and bacteria.