Fig. 3
From: Growth promotion of Euglena gracilis by ferulic acid from rice bran
Effect of ferulic acid on the median cell length Euglena gracilis under different light conditions. N.C. negative control group. Symbols correspond to (black circle) light 6 h, (black up-pointing triangle) light 12 h, (white square) dark 6 h, (white circle) dark 12 h