Figure 2: Cell properties of strain KC1. (A) Cells grown under the white light, (B) color and (C) absorption spectra of the strain KC1 cells incubated under the different light conditions; white, blue, red and far red (FR). Isolated cells were cultured in BG-11 media using 50 mL or 100 mL conical flasks in stationary culture conditions, or using 100 mL flasks in aerobic culture conditions with aerating sterile air (0.05 L min-1). All culturing flasks were incubated at 298 K. Monochromatic light sources were blue (MIL-B18), red (MIL-R18) and FR (MIL-IF18) LEDs (SANYO, Tokyo, Japan), and a light source of white light was the fluorescent light FL8N (Toshiba, Tokyo, Japan). Absorption spectra were measured by means of U-3900 spectrophotometer with φ60 integrating sphere (Hitachi, Tokyo, Japan) at room temperature. Cells were suspended in 20% polyethylene glycol (3,000 Da) aqueous solutions.