(D) Application of RALF23/34 disrupted FLS2-BAK1 complex formation in phr1 mutants. phr1 mutants grown in LP media were treated with water, 1 μM flg22, 1 μM RALF23, 1 μM RALF34 or both flg22 and RALF for 6 hours. The amount of immunoprecipitated FLS2 and coimmunoprecipitated BAK1 were determined using anti-FLS2 and anti-BAK1 antibodies, respectively. IgG was used as a negative control. Data information: All experiments were repeated three times with similar results. 