Effect of RACK1A modulators on the lateral roots’ formation in A. thaliana. Two-week-old wild-type (Col-0) seedling were treated as follows: control set including methanol (m) plus DMSO (d), SD29-12, SD29 and SD29-14, respectively. Treatment sets with 1 μM or 10 μM NAA plus D, SD29-12, SD29 and SD29-14, respectively. The drugs concentrations were 40 μg/ml. The images were taken by Leica EZ4 HD stereo zoom microscope. Results are representative of at least three independent experiments