Backgrounds
Zinc oxide nanoparticles (ZnO NPs) are extensively used for various products. In this study, the effects of ZnO NPs exposure in diversity and community composition of the bacteria associated with H. magnipapillata were investigated. This study provides insight into possible impacts of ZnO NPs on aquatic organisms.

Methods
454-pyrosequencing analysis of the bacterial 16S rRNA gene was applied to H. magnipapillata after exposure to 10 mg/L ZnO NPs (Ø 20 nm).

Results
Acute exposure to ZnO NPs changed the diversity and compositions of the associated bacteria. The composition of Curvibacter decreased, but Flectobacillus and Delftia increased; these two genera are known to have beneficial functions.

Conclusion
The changes in diversity and composition of the associated bacteria may indicate the possible mechanisms by which the associated bacteria maintain their mutual interactions and support the health of their host after exposure to ZnO NPs.



中文翻译：

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氧化锌纳米粒子对 九头蛇细菌群落的 影响

背景技术
氧化锌纳米颗粒（ZnO NPs）被广泛用于各种产品。在这项研究中，研究了ZnO NPs暴露对与 马氏嗜血 杆菌相关细菌的多样性和群落组成的影响 。这项研究提供了有关ZnO NP对水生生物可能影响的见解。

方法在暴露于10 mg / L ZnO NPs（ Ø20 nm）后
，对细菌H. magnipapillata 进行细菌16S rRNA基因的454焦磷酸测序分析 。

结果
ZnO NPs的急性暴露改变了相关细菌的多样性和组成。所述的组合物 Curvibacter 降低，但 Flectobacillus 和 代尔夫特 增加; 已知这两个属具有有益的功能。

结论
伴随细菌多样性和组成的变化可能表明，伴随细菌暴露于ZnO NPs后，相互之间保持相互作用，维持宿主健康的可能机制。