Figure 2.

Accumulation of HSVd genomic RNA and viroid-derived small RNA (vd-sRNA) in cucumbers and hop. (A,B) Accumulation of HSVd genomic RNA in cucumbers (A) from 2 to 5 weeks post-inoculation (wpi) and in hop (B) from 2 to 8 wpi. Solid line, HSVd-h; dashed line, HSVd-g. Vertical axis indicates relative hybridization signal intensity (pixels/cm²) measured by chemiluminescence. Error bars indicate standard deviation. Double asterisks indicate statistically significant differences at p < 0.01. (C,D) Accumulation of HSVd genomic RNA (circular and linear forms) and vd-sRNA in hop at 8 wpi and cucumber at 5 wpi.