使用元基因组分析和它们与环境因素的相关性, Baiyangdian湖沉积物的病原体概况
Rong Xiao1, Yanping Hu1, Yaping Wang1
1College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China.
The Science of the total environment
|December 30, 2023
概括
湖泊沉积物含有各种病原体,农业污染增加了它们的丰富性和毒性因素. 了解这些病原体与环境的相互作用对于管理受影响水生生态系统的风险至关重要.
科学领域:
- 环境微生物学环境微生物学
- 公共卫生 公共卫生
- 水生生态学 水生生态学
背景情况:
- 在COVID-19后,水生环境中的病原体研究对公共卫生至关重要.
- 人类的活动如农业,旅游和废水排放会影响病原体在湖泊中的分布.
- 了解湖泊沉积物中的病原体储存库对于当地生计和安全至关重要.
研究的目的:
- 调查湖泊沉积物中病原体的地理发生和分布.
- 评估农业污染,船只旅游和废水对病原体社区的影响.
- 探索病原体,环境因素和毒性因素之间的相关性.
主要方法:
- 从一个退化湖中的9个地点取沉积物样本.
- 使用分子技术进行病原体识别和量化.
- 毒性因子 (VF) 和其亚型的分析.
- 同时发生的网络分析,以确定病原体与环境的相关性.
主要成果:
- 在样本中共享了187种病原体;沙门氏菌和 Pseudomonas aeruginosa 是最丰富的.
- 湖泊沉积物充当了具有潜在感染风险的通用病原体的储存库.
- 攻击性毒性因素 (粘附性,分泌系统,毒素) 是主要的.
- 农业使用 (g1) 显示病原体多样性和VF明显高于旅游业 (g2) 和废水 (g3).
- 病原体与农药有很强的相关性 (diazinon,ppDDT),聚合物分量,EC,pH和酸酶.
结论:
- 湖泊沉积物是各种病原体的重要储库,对各种宿主构成风险.
- 农业污染是导致湖泊沉积物中病原体丰富性和毒性增加的主要驱动因素.
- 环境因素,特别是农药,在病原体的分布和共同暴露中发挥着关键作用.
- 为了有效管理受影响的水体,需要对病原体与环境相互作用进行进一步的研究.
更多相关视频
09:11Evaluating the Impact of Hydraulic Fracturing on Streams using Microbial Molecular Signatures
Published on: April 4, 2021
3.2K
08:58Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
Published on: March 3, 2023
6.5K
相关概念视频
Modern Molecular Taxonomy
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
Applications of Molecular Taxonomy
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
