NAT COMMUN:杀虫剂影响蜜蜂大脑神经功能

2013-07-01 Nature Communications Nature Communication

一些杀虫剂在达到环境相关浓度时会造成蜜蜂大脑神经功能失常。在Nature Communications上报告的这一发现为人们所观察到的蜜蜂觅食行为的中断和改变提供一个内在细胞机制。 杀虫剂在帮助维持作物产量上已被证明非常有效。然而,它们的使用被发现与很多昆虫数量的下降有关。新烟碱和有机磷酸酯是已被发现影响昆虫中枢神经系统中神经传输的两种类型的杀虫剂。蜜蜂为粮食生产提供必要的授粉作用,但这些杀虫剂

一些杀虫剂在达到环境相关浓度时会造成蜜蜂大脑神经功能失常。在Nature Communications上报告的这一发现为人们所观察到的蜜蜂觅食行为的中断和改变提供一个内在细胞机制。

杀虫剂在帮助维持作物产量上已被证明非常有效。然而,它们的使用被发现与很多昆虫数量的下降有关。新烟碱和有机磷酸酯是已被发现影响昆虫中枢神经系统中神经传输的两种类型的杀虫剂。蜜蜂为粮食生产提供必要的授粉作用,但这些杀虫剂对蜜蜂的具体影响却不清楚。Christopher Connolly及其同事获得了来自蜜蜂大脑中神经元的全部细胞记录,发现两种广泛使用的杀虫剂“吡虫啉”和“噻虫胺”通过激发烟碱受体损害神经元的可激发性。

本文作者得出的结论是,这一机制可解释蜜蜂接触特定杀虫剂后所发生的认知受损及其随后数量的下降。他们希望,这些发现将导致对于目标物种更有选择性的改进的害虫控制策略的出现。


Cholinergic pesticides cause mushroom body neuronal inactivation in honeybees

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    2013-10-06 liuli5079
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    2013-09-29 siiner
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    2013-11-29 仁医06
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