Role of primary photoacceptors in low-power laser effects: Action of He-Ne laser radiation on bacteriophage T4-Escherichia coli interaction
✍ Scribed by Olga Tiphlova; Dr. Tiina Karu
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 227 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0196-8092
No coin nor oath required. For personal study only.
✦ Synopsis
The effect of He-Ne laser radiation (X = 632.8 nm) on bacteriophage TCEscherichia coli WP2 interactions was studied. Irradiation of bacteria having respiratory chain components as primary photoacceptors accelerated their division in a dose-dependent manner, but irradiation had no effect on the properties of the phage (measured as its ability to infect host cells). At the same time, exposure of bacteria to stimulatin doses of He-Ne laser radiation (from lo3 to 6 x 10 J/m2) increased their ability to promote the growth of unexposed phages. These results clearly indicate that lowpower laser effects require primary photoacceptors (phage contains no chromophores for red light).