王琳,赵格,律娜,高玉斌,王娟,刘娜,黄秀梅,赵建梅,陆明哲,刘俊辉,曲志娜,王君玮

• 1:中国动物卫生与流行病学中心
• 2:中国科学院微生物研究所

摘要(Abstract)：

为了解自然状态下“动物-环境-人”微生物菌群结构及其耐药性,2022—2023年采集中央山岛动物、环境、人源样品共75份,应用宏基因组测序分析技术,分析3类样品的微生物菌群组成及其耐药基因分布情况。结果显示:环境和动物源样品中微生物菌群物种数量较多,人源样品中菌群物种数量最少;环境源样品中微生物菌群多样性、均匀度均高于动物和人源样品。环境源样品(空气、水体、土壤和滩涂)中的菌群组成较相似,以变形菌门(Proteobacteria)和放线菌门(Actinobacteria)为优势菌;动物和人源样品中的菌群组成较相似,以拟杆菌门(Bacteroidetes)、厚壁菌门(Firmicutes)和变形菌门(Proteobacteria)为优势菌;各类样品的优势菌在冬夏两季占比不同。聚类分析发现,土壤和滩涂样品的微生物群落结构最为相近,与水体、空气样品微生物群落结构较为相近,而与动物和人源样品的微生物群落结构较远。空气样品中微生物菌群耐药基因数量最多,多样性和均匀度最高;动物和人源样品的耐药基因多样性和均匀度高于水体、土壤和滩涂等环境样品。聚类分析发现,人源、动物源和空气样品间微生物菌群耐药基因距离较近,它们与水体和土壤样品距离较远。结果表明:中央山岛“动物-环境-人”微生物菌群物种丰富,不同界面组成不同,耐药基因种类和丰度各异。本研究从“动物-环境-人”的角度明晰了自然状态下中央山岛微生物菌群组成及其耐药现状,为后期深入探究细菌耐药发生,研究野鸟携带耐药菌溯源遗传演化和传播生态学机制提供了宝贵的背景信息。

关键词(KeyWords)： 细菌耐药;微生物菌群;宏基因组测序分析;中央山岛;One Health

Abstract:

Keywords:

基金项目(Foundation): 中国动物卫生与流行病学中心创新基金项目(DW2021018)

作者(Author): 王琳,赵格,律娜,高玉斌,王娟,刘娜,黄秀梅,赵建梅,陆明哲,刘俊辉,曲志娜,王君玮

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