Floral tea polyphenols can improve honey bee memory retention and olfactory sensitivity
| 论文编号: | |||||||||
| 作者: | Gong ZW | ||||||||
| 刊物名称: | Journal of Insect Physiology | ||||||||
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| 论文题目英文: | Floral tea polyphenols can improve honey bee memory retention and olfactory sensitivity | ||||||||
| 年: | Dec 2020 | ||||||||
| 卷: | 128 | ||||||||
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| 页: | 104177 | ||||||||
| 联系作者: | Dong SH; Tan K | ||||||||
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| 影响因子: | 2.246 | ||||||||
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| 摘要: | Animal-pollinated plants face a common problem, how their defensive anti-herbivore compounds may impair or alter pollinator behavior. Evolution has tailored multiple solutions, which largely involve pollinator tolerance or manipulation, to the benefit of the plant, not the removal of these compounds from pollen or nectar. The tea plant, Camilla sinensis, is famous for the caffeine and tea polyphenols (TP) that it produces in its leaves. However, these compounds are also found in its nectar, which honey bees readily collect. We examined the effects of these compounds on bee foraging choices, learning, memory, and olfactory sensitivity. Foragers preferred a sucrose feeder with 100 μg or 10 μg TP/ml over a control feeder. Caffeine, but not TP, weakly increased honey bee learning. Both caffeine and TP significantly increased memory retention, even when tested 7 d after the last learning trial. In addition, TP generally elevated EAG responsiveness to alarm pheromone odors. These results demonstrate that other secondary plant compounds, not only caffeine, can attract pollinators and influence their learning and memory. | ||||||||
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