[城市化梯度下的侵袭性非洲大牛肠道微生物群落的特征]
Jing Xie1, Yi-Yue Zhang2, Zhong-Hui Tang2,3
1College of Resource and Environment, Nanjing Agricultural University, Nanjing 210000, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|October 28, 2023
概括
侵入性牛 (Achatina fulica) 的肠道微生物群与它们的土壤环境有很大不同,对城市化非常敏感. 城市环境增加了牛肠道中潜在有害细菌的丰富性,引发了公众健康的担忧.
科学领域:
- 微生物学 微生物学
- 生态生态学 生态生态学
- 环境科学 环境科学
背景情况:
- 肠道微生物组在宿主生理学和适应方面发挥着至关重要的作用.
- 侵入性物种可以破坏当地生态系统,了解它们的微生物相互作用至关重要.
- 城市化是改变生物多样性和生态过程的主要环境驱动因素.
研究的目的:
- 为了调查肠道微生物群的多样性和社区结构的入侵牛Achatina fulica沿着城市化梯度.
- 将肠道微生物组与不同息地的土壤微生物组进行比较.
- 评估城市化对肠道微生物组合的影响,并确定潜在的健康风险.
主要方法:
- 从门市的城市,郊区和农村公园收集了30个Achatina fulica样本.
- 使用PacBio平台进行全长16S rRNA基因测序.
- 对肠道和土壤微生物群社区特征的分析,包括α和β多样性.
主要成果:
- 在Achatina fulica肠道微生物组和土壤微生物组组成之间观察到显著差异.
- 与土壤微生物群相比,肠道微生物群对城市化的敏感性更高.
- 微生物α-多样性指数在土壤中比在牛肠中更高.
- 城市化显著改变了肠道微生物组的组成,不同的细菌家族在城市/郊区和农村地区占主导地位.
- 在城市牛肠道微生物组中发现的潜在人类病原细菌的多样性和丰富性增加.
结论:
- 肠道微生物组的组成受到城市化的显著影响.
- 城市环境带来了由Achatina fulica传播病原体的风险升级,因为潜在有害细菌的丰富性增加.
- 需要进一步的研究来了解这些发现对生态和公共卫生的影响.
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