Figure 6From: Genetic and transformation studies reveal negative regulation of ERS1 ethylene receptor signaling in ArabidopsisInhibitory effect of ERS1 on the repression of the ethylene response is not blocked by ethylene. (A), (B) ethylene dose-response curve for two sets of ERS1-lacking mutants. (C) under a high ethylene concentration, ERS1 still exerts an inhibitory effect on seedling hypocotyl elongation. (D) ERS1 accumulation is elevated upon ethylene treatment; a and b represent ERS1 level from two independent wild-type plants. Error bar indicates standard deviation. ERS1: the ERS1 protein. NA: no ethylene treatment. Stained blot: membrane was stained with Coomassie Blue after the immunoassay to indicate relative protein amount. L1, L2, and L3 represent three independently identified isogenic mutants. A molecular weight marker is indicated at the position of 72 kD. Common mutations are highlighted in a box. P: probability of a numerically larger t in Student's t test or LSD-t test.Back to article page