Figure 4From: Expression of a crown gall biological control phenotype in an avirulent strain of Agrobacterium vitis by addition of the trifolitoxin production and resistance genesEffect of TFX production and inoculum ratio on Nicotiana glauca gall size. Legend: Gall diameter (mm) perpendicular to the stem was measured 1 month post-inoculation. Wound sites were inoculated with 5 μl of mixed bacterial suspensions. Mixtures were made immediately prior to inoculation. Each inoculum mixture was inoculated into three or four wounds on each of two plants, for a total of six to eight inoculations per treatment. Results that are significantly different at α = 0.05 are indicated with different letters within a group of inoculum mixtures. High ratios of F2/5 (pT2TFXK) :tumorigenic strain result in significant disease suppression for all three tested tumorigenic strains.Back to article page