Fig. 2
From: Effects of volatile organic compound ether on cell responses and gene expressions in Arabidopsis
NBT assay for O2 − production induced by ether on Arabidopsis leaves. Arabidopsis plants were fumigated with 500 μL/L of ether for various time intervals (a). Panel (b) is the close-up pictures of the NBT stainings. Three replicates for each treatment were performed, and representative leaves were presented. W wounding; Un untreated plants. Scale bars = 300 μm