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Chinese Journal of Biological Control ›› 2022, Vol. 38 ›› Issue (5): 1103-1108.DOI: 10.16409/j.cnki.2095-039x.2022.09.006


The Safety Evaluation of Cry1Ah Protein to Hippodamia variegate and Chrysoperla nipponensis

PAN Hongsheng, WANG Dongmei, JIANG Yan, AKEDAN·Wuwaishi, LI Haobin   

  1. Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences/National Plant Protection Scientific Observation and Experiment Station of Korla, Ministry of Agriculture and Rural Affairs, Urumqi 830091, China
  • Received:2022-06-10 Published:2022-10-20

Abstract: Non-target effect is an important aspect in environmental safety evaluation of transgenic insect-resistant crops.In this study,we systematically evaluated the effects of Cry1Ah,a novel Bacillus thuringiensis(Bt) insecticidal protein,on biological indicators of Hippodamia variegata larvae and adults,as well as Chrysoperla nipponensis adults.The results showed that the larval survival rate,larval duration,pupal duration,body weight,adult lifespan and fecundity of H.variegata were not significantly different in the larvae fed with aphids pasted with Cry1Ah protein from those of the control.When the adults were fed with honey water containing Cry1Ah protein,there were no significant differences in the longevity and fecundity of C.nipponensis in these insects from the control.Therefore,Cry1Ah protein has no significant adverse effects on the life indicators of H.variegata and C.nipponensis.These results provide important technical support for safety evaluation of transgenic cotton plants with Cry1Ah before commercial release.

Key words: Cry1Ah protein, Hippodamia variegata, Chrysoperla nipponensis, environmental safety

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