Fig. 4

OsERS1 is required for redox regulation. a Expression pattern of OsERS1 in anther, b osers1 anther at stage 5 with excess Sp cells, c Higher ROS level in osers1 anthers at stage 2, d-f osers1 anthers at stage 4 treated with H₂O₂ or KI, d osers1 anther without treatment, e osers1 anther treated with H₂O₂, f osers1 anther treated with KI. Blue color in a shows the gradients of gene expression; grey color in a shows different cell layers without OsERS1 expression; green color in c shows the gradient of ROS level; white color in c shows no detectable redox status