Figure 1From: Transcriptomic changes induced by acute ozone in resistant and sensitive Medicago truncatulaaccessionsTotal ROS levels in M. truncatula accessions. Leaf samples were taken at 0, 1, 4, 8, 12, 16, and 24 hours. Gray bar on x-axis represents ozone treatment for six hours. ROS levels are reported in Relative Fluorescence Units per mg protein. ** P < 0.01 for significance of total ROS change in ozone treated plants as determined by Student t-test.Back to article page