Acta Entomologica Sinica (2002) 45, 296-300

Jun-Feng Dong, Ji-Hong Zhang and Chen-Zhu Wang (2002)
Effects of plant allelochemicals on nutritional utilization and detoxication enzyme activities in two Hericoverpa species
Acta Entomologica Sinica 45 (3), 296-300
Abstract: The effects of four plant allelochemicals, gossypol, nicotine, tomatine and capsicine, on nutritional utilization and detoxication enzymes activities in midgut were investigated with the 5th instar larvae of cotton bollworm, Helicoverpa armigera, and oriental tobacco budworm, H. assulta. The results showed that H. armigera exhibited wide adaptability to all the four allelochemicals, whereas H. assulta could only fit well to nicotine and capsicin, which were the allelochemicals from its host plants. Midgut CarE activity was unaffected by the allelochernicals in H. armigera and H. assulta. GST activity in the midgut of H. assulta could be strongly induced by nicotine and capsicine, but significantly inhibited by tomatine; none of the four allelochemicals could affect midgut GST activity in H. armigera.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Chen-Zhu Wang

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Helicoverpa armigera
	Helicoverpa assulta