イネわい化ウイルスのイネ体内移行

抄録

The movement of rice waika virus (RWV) inoculated by N. cincticeps in rice plant was traced by the recovery transmission and the electron microscope inspection. When inoculated to young seedlings, RWV was recovered from 12% of newly emerged leaves 3 days after inoculation and 78% after 7 days, but none recovered from the inoculated leaves. RWV could be recovered also from the primary tiller 14 days after inoculation. In electron microscope inspection, particles of RWV observed in the newly emereged leaves were a few after 7 days but increased after 14 days. As the result of leaf blade excision method, RWV seemed to move from the inoculated leaves to the upper leaves within 3 hours after inoculation.