Figure 3From: Pythium species from rice roots differ in virulence, host colonization and nutritional profileH 2 0 2 production in Pythium -inoculated rice roots at 1 and 2 dpi. Arrows indicate reddish-brown DAB precipitates. Samples were taken from the most heavily infected parts of the primary root (upper 1.5 cm) and infiltrated with DAB. After cross sectioning, samples (5 μm) were stained with trypan blue. Scale bars = 100 μm.Back to article page