中华蜜蜂
生物
蜜蜂
氧化应激
超氧化物歧化酶
免疫系统
丙二醛
工蜂
微生物学
毒理
蜜蜂科
抗氧化剂
养蜂女孩
植物
膜翅目
免疫学
生物化学
作者
Zhongyu Li,Dezheng Guo,Chen Wang,Xuepeng Chi,Zhenguo Liu,Ying Wang,Hongfang Wang,Xingqi Guo,Ningxin Wang,Baohua Xu,Zheng Gao
标识
DOI:10.1016/j.scitotenv.2023.169318
摘要
Cadmium (Cd) is a toxic non-essential metal element that can enter the honey bee body through air, water and soil. Currently, there is a lack of sufficient research on the effects of Cd on A. cerana cerana, especially the potential risks of long-term exposure to sublethal concentrations. In order to ascertain the toxicological effects of the heavy metal Cd on bees, we performed laboratory-based toxicity experiments on worker bees and conducted analyses from three distinctive facets: antioxidative, immunological, and gut microbiota. The results showed that exposure of bees to high concentrations of Cd resulted in acute mortality, and the increase in mortality was concentration dependent. In long-term exposure to sublethal concentrations, Cd reduced the number of transcripts of antioxidant genes (AccSOD1, AccTPx3 and AccTPx4) and superoxide dismutase activity, causing an increase in malondialdehyde content. Simultaneously, the transcription of immune-related genes (AccAbaecin and AccApidaecin) and acetylcholinesterase activities was inhibited. Furthermore, Cd changes the structural characteristics of bacterial and fungal communities in the gut, disrupting the balance of microbial communities. In conclusion, the health and survival of honey bees are affected by Cd. This study provides a scientific basis for investigating the toxicological mechanisms and control strategies of the heavy metal Cd on honey bees, while facilitating a better understanding and protection of these valuable honey bees.
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