Fig. 5

Red light increases cell density and biomass of tyd4. A Cell density dynamics; B biomass; L, 25 μmol photons/m2/s under cool-white fluorescent lamps. RL, 25 μmol photons/m2/s under red fluorescent lamps. HL, 300 μmol photons/m2/s under cool-white fluorescent lamps. The * indicated the significant difference between two means at the level of 0.05