Figure 1
From: Bark and wood tissues of American elm exhibit distinct responses to Dutch elm disease
Level of fungal actin transcripts in the inoculated tissues of ‘Valley Forge’ and ‘Princeton’. (a,b) Photographs of the core and bark, respectively, of American elm stem sections inoculated with O. novo-ulmi (MH75-4O). Arrows refer to the inoculation point. (c-d) Expression of the fungal actin gene (On-actin) in mock-inoculated (0 hpi) and inoculated core and bark tissues, respectively, of ‘Valley Forge’ (VF) and ‘Princeton’ (P). The Y-axis shows the expression of On-actin gene normalized to the expression of three elm reference genes (EIF 5a, vacuolar ATP synthase and splicing factor 3B) and calculated relative to control (P-core at 48 hpi). Values marked with an asterisk (*) are significantly greater (≥2 times) than the corresponding time point in the other genotype (P < 0.05).
