Fig. 1. Beta-tubulin gene copy numbers per mg (cn/mg) of plant material (wet weight) detected with the real-time PCR assay in samples taken from the inoculation experiment before infection (bi) and during all stages of infection 1, 2, 4, 6, 8 and 16 days post infection (dpi). Columns represent the median value of 27 separate measurements for each day, error bars indicate the maximum and minimum values, respectively. Below, pictures of the respective wheat spikes are shown