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Joint effects of cadmium and copper on Apis mellifera forgers and larvae

文献类型： 外文期刊

作者： Di, Ning 1 ; Zhang, Kai 2 ; Hladun, Kristen R. 3 ; Rust, Michael 4 ; Chen, Ya-Feng 1 ; Zhu, Zheng-Yang 1 ; Liu, Tong-X 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China

2.Minist Agr & Rural Affairs, Dev Ctr Sci & Technol, Beijing 100122, Peoples R China

3.US FDA, Pacific Reg Lab, Irvine, CA 92612 USA

4.Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA

5.Northwest A&F Univ, State Key Lab Crop Stress Biol Arid Areas, Key Lab Northwest Loess Plateau Crop Pest Managem, Minist Agr, Yangling 712100, Shaanxi, Peoples R China

关键词： Heavy metals; Synergism; Pollinators; Body burden; Sucrose response threshold

期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY （ 影响因子：3.228； 五年影响因子：3.289 ）

ISSN： 1532-0456

年卷期： 2020 年 237 卷

页码：

收录情况： SCI

摘要： Honey bees (Apis mellifera L.) are important ecological and agricultural resources. They are among the most widely available pollinators and provide products as well as services. Unfortunately, honey bee populations are susceptible to several environmental threats, including heavy metal exposure. Honey bees can be exposed to heavy metals when foraging on contaminated honey and pollen resources, and in some cases by airborne exposure. We studied the joint acute and chronic effects of cadmium (Cd) and copper (Cu) on A. mellifera. A 1:1 solution of the two heavy metals increased larval developmental duration and the mortality of both larvae and foragers in a dose-dependent way, decreased forager feeding, increased body metal burdens, and disrupted the sucrose response behavior of foragers. In combination, Cd and Cu demonstrated a weakly synergistic effect on foragers, but for larvae an initially antagonistic effect at low doses changed to strongly synergistic response at higher concentrations. The sucrose response threshold of foragers decreased significantly when they were dosed with increasing concentrations of the metal mixtures. Overall, the fitness of honey bee larvae and foragers is detrimentally affected when these metals co-occur.

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