Acta Entomologica Sinica (2000) 43, 21-27

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Guo-Xun Sun, Cui Ding and Xiu-Yu Cai (2000)
Replication of HaNPV in host and its effect on metabolism of host proteins
Acta Entomologica Sinica 43 (1), 21-27
Abstract: SDS-PAGE analyses of the proteins of midgut, hemolymph and fat body indicated that the infection of HaNPV may stimulate initially and then inhibit the synthesis of the host proteins. During all the infected courses, no polyhedrin was found in SDS-PAGE pattern of the midgut and hemolymph. On the contrary, the polyhedrin band appeared in the fat body cells, at both 96 hr and 120 hr after oral inoculation, suggesting high expression of the polyhedrin in the fat body cells. Electron microscopical observation showed that: 1) after oral inoculation, the virions as well as the budded virus produced via replication in the midgut could enter into hemocoel and then infect fat body. On the other hand, the midgut could also be infected by the virions from hemocoel injection. In other words, the midgut is not only a primary infection origin, but also a tissue susceptible to secondary, infection; 2) There was a structural barrier between the midgut and the hemocoel.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)


Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Helicoverpa armigera
Helicoverpa armigera nucleopolyhedrovirus (entomopathogen) Helicoverpa armigera