[Effect of low-intensity monochromatic visible light on the growth of Escherichia coli cultures].

The goal of this work was to study the effect of monochromatic visible light having a low intensity on Escherichia coli WP2 growth. The growth was accelerated by violet light (lambda = 404 nm) at a dose of 10--100 J/m2 and by blue (lambda = 454 nm), green (lambda = 520 to 560 nm), red (lambda = 633 nm) and far red light (lambda = 700 to 750 nm) at a dose of 10(3)--10(4) J/m2). The components of E. coli respiration chain may be primary photoreceptors in the cells.