ATTEMPTED BIOSTIMULATION OF DIVISION IN Saccharomyces cerevisiae USING RED COHERENT LIGHT
- 1 February 1993
- journal article
- review article
- Published by Wiley in Photochemistry and Photobiology
- Vol. 57 (2) , 272-278
- https://doi.org/10.1111/j.1751-1097.1993.tb02286.x
Abstract
Replicate cultures of the yeast Saccharomyces cerevisiae were irradiated with 632.8 nm coherent light from He-Ne lasers at irradiances of 6.5 x 10(15) and 1.0 x 10(16) photons s-1 cm-2. Irradiation periods ranged from 0 to 652 min, and cultures were grown until well into the exponential phase. Unirradiated control cultures were grown alongside the irradiated cultures under otherwise identical conditions. The extents of growth in the control and irradiated cultures were compared spectrophotometrically at the end of each experiment. Contrary to the expectations of Karu et al. (e.g. Karu, 1988, Lasers Life Sci. 2, 53-74) no growth enhancement was found in the irradiated cultures, but a mild inhibitory effect was observed.Keywords
This publication has 19 references indexed in Scilit:
- Recent results in laser biomedicine and some prospects of the futureBerichte der Bunsengesellschaft für physikalische Chemie, 1989
- Role of primary photoacceptors in low‐power laser effects: Action of He‐Ne laser radiation on bacteriophage T4‐Escherichia coli interactionLasers in Surgery and Medicine, 1989
- Low-Energy Laser Treatment of Pain and Wounds: Hype, Hope, or Hokum?Mayo Clinic Proceedings, 1986
- Effect of the He‐Ne LaserRadiation on the ReproductionRate and Protein Synthesis ofthe YeastLaser Chemistry, 1984
- Biostimulating Action ofLow‐Intensity MonochromaticVisible Light: Is it Possible?Laser Chemistry, 1984
- Stimulation of E. coli growth by laser and incoherent red lightIl Nuovo Cimento D, 1983
- Wirkungen sichtbaren Lichtes auf Saccharomyces cerevisiaeArchiv für Mikrobiologie, 1966
- Inhibition of Protein Synthesis in Yeast by Low Intensities of Visible LightNature, 1964
- Lethal effect of visible light on a mutant strain of haploid yeast. I. General dependenciesArchives of Biochemistry and Biophysics, 1957
- THE SPECIFIC EFFECTS OF MONOCHROMATIC LIGHT ON THE GROWTH OF YEASTCanadian Journal of Research, 1930