The Reproduction of Nuclear Polyhedrosis Virus in the M idgut Epithelial Cell and the Other Sensitive Cell of Helicoverpa armigera
Abstract: The reproduction of Helicoverpa armigera nueleopolyhedmvirus in the midgut epithelia cells and the other sensitive tissues-vvas observed by electron microscopy.The reproducing viruses in the midgut epithelia cells were mostly without envelopes,and thte polyhedrons were seldom formed .The reprodueiing viruses in the other sensitive cells were with envelopes,and packed in polyhedrons