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Disease symptoms of rice leaves (Oryza sativa) inoculated by viruliferous small brown planthoppers (Laodelphax striatellus) or microinjected with Rice stripe virus (RSV) crude preparations from RSV‐infected rice seedlings or viruliferous small brown planthoppers. Crude extracts from nonviruliferous small brown planthoppers or healthy rice leaves served as negative controls.
