Interactions Between Exogenous Bt Insecticidal Protein and Cotton Terpenoid Aldehydes |
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| Authors: | ZHANG Yong-jun GUO Yu-yuan WU Kong-ming WANG Wu-gang |
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| Institution: | Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100094, P. R. China |
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| Abstract: | The contents of terpenoid aldehydes in Bt transgenic cotton and their non-Bt parental varieties were analyzed by the HPLC method. Statistical analysis of variance showed that Bt insecticidal protein Bt-ICP expression has no negative effect on the synthesis of gossypol, total heliocides and total resistant terpenoids.The results of the combined dosage test of Bt-ICP and gossypoi in vitro showed that there is no interaction between gossypol and Bt-ICP on the mortality of cotton boilworm larvae Helicoverpa armigera (Hubnner). It is indicated that the actions of Bt-ICP and gossypol on cotton bollworm are additive. Therefore, it is advantageous to combine Bt-ICP with cotton terpenoid aldehydes in controlling cotton bollworm. |
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| Keywords: | Bt-ICP Terpenoid aldehydes Interaction |
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