Fig. 1

Typical chlorotic stripes and necrosis symptoms in rice plants induced by Rice stripe virus (RSV) and infection confirmation by RT-PCR detection. Both RSV-infected and mock rice plants were shown at (a) 21 days post inoculation (dpi) and (b) 23 dpi; (c) RT-PCR confirming that 969-bp fragment for RSV nucleocapsid gene (NCP) was absent in mock and present in symptomatic RSV-infected plants. Mock rice had typical healthy growth, but RSV-infected leaves showed typical chlorosis at 21 dpi (corner of panel a), and the entire plant was dead at 23 dpi (b). M, DL2000 DNA marker; P, RSV infected sample as positive control; N, healthy sample as negative control; 1-3, mock leaves; 4-6, RSV-infected leaves