城市土壤使有害微生物和抗生素耐药性基因停滞不前
Chang Zhao1, Aki Sinkkonen2, Ari Jumpponen3
1School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, 800 Dongchuan Rd., Shanghai 200240, China; Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China.
Journal of hazardous materials
|January 30, 2025
概括
室内空气中的微生物主要来自植物叶子,而不是土壤,携带潜在的病原体. 土壤,尽管具有高抗生素耐药性基因,但可能会限制呼吸道疾病微生物的传播.
科学领域:
- 环境微生物学环境微生物学
- 公共卫生 公共卫生
- 微生物生态学 微生物生态学
背景情况:
- 暴露于有害微生物和抗生素耐药性基因 (ARG) 对人类健康构成风险.
- 室内传入空气中的微生物群 (AMTI) 的来源,特别是来自植被和土壤的来源,尚不清楚.
研究的目的:
- 研究植物圈和土壤微生物对室内空气微生物群的贡献.
- 在室内环境中识别空气中的微生物群落和潜在的人类病原体 (PHP) 的来源.
- 评估土壤特征 (如硫丰富) 在传播呼吸道疾病 (RDs) 相关微生物和ARG中的作用.
主要方法:
- 使用一种新的空气传播微生物采样器 (VenTube) 来收集AMTI样品.
- 从上海72个社区同时收集了植物圈和土壤微生物样本.
- 采用下一代测序,定量PCR和可追溯性分析来描述微生物群落并确定来源.
主要成果:
- 在AMTI中的细菌和真菌群体主要来自植物圈 (分别高达52.3%和67.2%).
- 在植物圈微生物和AMTI之间观察到潜在的人类病原体 (PHP) 的显著共同转移.
- 土壤含有比AMTI更多的PHP和与RDs相关的ARG,但与RDs相关的微生物较少;土壤硫丰富影响了与RDs相关的微生物的释放.
结论:
- 在AMTI中RDs相关微生物的高水平主要来自植物圈微生物.
- 生物圈是空气中转移到室内微生物的主要来源.
- 土壤可能在限制RDS相关微生物和ARG在室内传播方面发挥作用.
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