Cry1Ab rice does not impact biological characters and functional response of Cyrtorhinus lividipennis preying on Nilaparvata lugens eggs |
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Authors: | CHEN Yang LAI Feng-xiang SUN Yan-qun HONG Li-ying TIAN Jun-ce ZHANG Zhi-tao FU Qiang |
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Institution: | 1、State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, P.R.China
2、State Key Laboratory of Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and
Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310019, P.R.China |
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Abstract: | One concern about the use of transgenic plants is their potential risk to natural enemies. In this study, using the eggs of the rice brown planthopper, Nilaparvata lugens, as a food source, we investigated the effects of Cry1 Ab rice on the biological characteristics and functional response of an important predator Cyrtorhinus lividipennis. The results showed that the survival ability(adult emergence rate and egg hatching rate), development(egg duration, nymphal developmental duration), adult fresh weight, adult longevity and fecundity of C. lividipennis on Bt rice plants were not significantly different compared to those on non-Bt rice plants. Furthermore, two important parameters of functional response(instantaneous search rate and handling time) were not significantly affected by Bt rice. In conclusion, the tested Cry1 Ab rice does not adversely impact the biological character and functional response of C. lividipennis. |
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Keywords: | Bt rice safety assessment non-target organism natural enemy |
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