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A. Sachet feeding system. B. Honeydew droplets collected on a blotting sheet viewed by phosphor-imager C. 15% PAGE analysis of RNA and honeydew isolated from the aphids feeding on labeled diet and exposed to autoradiograph. Lane 1–2, Total RNA isolated from aphids; 3–4, honeydew elutions; 5, positive control ([γ-32P]-ATP labeled ds-21 nt).
