Wu, G. and Chen, F. J. and Ge, F. and Sun, Y. C. (2007) Transgenic Bacillus thuringiensis (Bt) cotton (Gossypium hirsutum) allomone response to cotton aphid, Aphis gossypii, in a closed-dynamics CO2 chamber (CDCC). Journal of Plant Research, 120 (6). pp. 679-685.
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Abstract
Allocation of allomones of transgenic Bacillus thuringiensis Gossypium hirsutum (Bt cotton) (cv. GK-12) and non-Bt-transgenic cotton (cv. Simian-3) grown in elevated CO2 in response to infestation by cotton aphid, Aphis gossypii Glover, was studied in a closed-dynamics CO2 chamber. Significant increases in foliar condensed tannin and carbon/nitrogen ratio for GK-12 and Simian-3 were observed in elevated CO2 relative to ambient CO2, as partially supported by the carbon nutrient balance hypothesis, owing to limiting nitrogen and excess carbon in cotton plants in response to elevated CO2. The CO2 level significantly influenced the foliar nutrients and allomones in the cotton plants. Aphid infestation significantly affected foliar nitrogen and allomone compounds in the cotton plants. Allomone allocation patterns in transgenic Bt cotton infested by A. gossypii may have broader implications across a range of plant and herbivorous insects as CO2 continues to rise.
| Item Type: | Article |
|---|---|
| Additional Information: | We thank Professor Marvin Harris from Texas A&M University for reviewing our manuscript draft. This project was supported by ‘‘National Basic Research Program of China’’ (973 Program) (No. 2006CB102002), the Innovation Program of Chinese Academy of Science (KSCX2-YW-N-006) and National Nature Science Fund of China (No. 30571253, 30621003). |
| Uncontrolled Keywords: | Elevated CO2, Aphis gossypii, Transgenic Bt cotton, Allomone compounds, Plant allocation |
| Author Affiliation: | 1.Chinese Academy of Sciences National Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology P.O. Box 27 Bei Si Huan Xi Lu 25 hao Beijing 100080 People’s Republic of China |
| Subjects: | Plant Protection |
| Divisions: | Other Crops |
| Depositing User: | Mr Siva Shankar |
| Date Deposited: | 27 Apr 2012 07:48 |
| Last Modified: | 27 Apr 2012 07:48 |
| Official URL: | http://dx.doi.org/10.1007/s10265-007-0110-3 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/4981 |
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