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[抗生素耐药性基因在北京不同土地使用模式下的土壤中的分布特征]

Xiang Zhao¹, Jian Wang^2,3, Jun-Xiang Xu¹

¹Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.

Huan jing ke xue= Huanjing kexue

|October 15, 2025

概括

抗生素耐药性基因 (ARG) 在北京土壤中广泛分布,遍及各种土地用途. 温室蔬菜田显示了最高的ARG丰度,而农田则是最低的,这表明土地使用对土壤抗性的影响.

科学领域:

环境科学环境科学
微生物学微生物学
土壤科学土壤科学

背景情况:

抗生素耐药性基因 (ARG) 对公众健康和环境可持续性构成重大威胁.
了解ARG在土壤生态系统中的分布对于制定有效的缓解策略至关重要.
已知土地使用模式会影响微生物群落及其相关基因的组成和丰富性.

研究的目的:

研究不同土地使用模式下的北京土壤中ARG的分布特征.
确定在各种土壤环境中存在的ARG和移动遗传元素 (MGE) 的类型和丰度.
探索土壤物理化学性质和ARG丰度之间的潜在相关性.

主要方法:

选取了来自北京农田,蔬菜田,温室蔬菜田和果园的75个土壤样本.
使用高通量定量PCR (qPCR) 分析ARG和MGE.
统计分析以确定土壤特性和ARG丰度之间的相关性.

主要成果:

在所有土壤样本中共检测到195种ARG和9种MGE.
最常见的ARG类是β-乳酸,多种药物和氨基糖化物耐药性基因.
温室蔬菜领域的ARG丰度最高,而农业领域的ARG丰度最低.
观察到特定的区域差异,在不同土地使用类型的某些地区有更高的ARG丰度.
温室田中的可用和某些ARG之间存在显著的负相关性;果园中的可用和细菌数量之间存在正相关性.

结论:

土地使用模式显著影响城市土壤中ARG的分布和丰度.
温室种植实践可能会导致土壤中ARG的流行率更高.
土壤的物理化学特性,如可用的和,可以与ARG丰富性和细菌种群有关.

关键词:

北京北京北京北京北京抗生素耐药性基因 (ARG) 是一种抗生素耐药性基因.分销销售分销销售分销销售土地使用模式模式土壤土壤土壤土壤土壤

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