| Title: | Knockdown of cytochrome P450 gene CYP6AB12 based on nanomaterial technology reduces the detoxification ability of Spodoptera litura to gossypol |
| Author(s): | Zhao P; Xue H; Zhu X; Wang L; Zhang K; Li D; Ji J; Niu L; Gao X; Luo J; Cui J; |
| Address: | "State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China. Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China. Electronic address: 15036138389@163.com. Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China. Electronic address: luojunyu1818@126.com. Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China. Electronic address: aycuijinjie@163.com" |
| DOI: | 10.1016/j.pestbp.2022.105284 |
| ISSN/ISBN: | 1095-9939 (Electronic) 0048-3575 (Linking) |
| Abstract: | "In insects, cytochrome P450 monooxygenases (P450s or CYPs) play an important role in the detoxification and metabolism of exogenous plant allelochemicals. In this study, a P450 gene CYP6AB12 was identified and characterized from Spodoptera litura. The cDNA contains an open reading frame (ORF) encoding 511 amino acid residues. CYP6AB12 was expressed at different ages of S. litura, with the highest levels found in the third and fourth instar larvae. Its highest expression was found in the midgut and fat body of fourth instar larvae fed with gossypol. Moreover, these expression levels were substantially increased compared with those from larvae fed with control diet. Gene silencing was then conducted by smearing dsRNA mixed with nanomaterials onto the cuticle. CYP6AB12 expression was significantly decreased in the midgut and fat body, and the net weight increase was substantially lower than that of the control group, indicating that the treatment group had more sensitivity to gossypol than the control. These results reveal that CYP6AB12 plays an important role in the detoxification and metabolism of gossypol, thus further confirming that P450s have a broad ability to detoxify and metabolize plant allelochemicals. It provides an important molecular basis for the exploration of detoxification metabolism and pest control of S. litura" |
| Keywords: | Animals Spodoptera/genetics *Gossypol/pharmacology Cytochrome P-450 Enzyme System/genetics *Nanostructures Technology Larva/genetics Pheromones Cyp6ab12 Cytochrome P450 monooxygenases Gossypol RNA interference; |
| Notes: | "MedlineZhao, Peng Xue, Hui Zhu, Xiangzhen Wang, Li Zhang, Kaixin Li, Dongyang Ji, Jichao Niu, Lin Gao, Xueke Luo, Junyu Cui, Jinjie eng 2022/12/05 Pestic Biochem Physiol. 2022 Nov; 188:105284. doi: 10.1016/j.pestbp.2022.105284. Epub 2022 Nov 5" |
