Figure 4.

Accumulation of extracellular H₂O₂ in response to OGs or G/GO in Arabidopsis seedlings. A, Arabidopsis wild-type and atrbohD seedlings were treated with water (H₂O) or OGs for the indicated time (min). Arabidopsis wild-type (squares) and atrbohD (triangles) seedlings were treated with water (white symbols) or OGs (black symbols). B, Arabidopsis seedlings were treated with water (H₂O, white squares), OGs (black squares), or G/GO (gray triangles). H₂O₂ accumulation in the culture medium, expressed as μm g⁻¹ fresh weight, was measured at the indicated times (min). Values are means of three samples ± sd.