野火灰来自野地-城市界面 变异性Vibrio vulnificus生长和基因表达
Karlen Enid Correa Velez1,2, Mahbub Alam1,3, Mohammed A Baalousha1,3
1Department of Environmental Health Sciences, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States.
Environmental science & technology
|May 1, 2024
概括
野火灰会影响海洋细菌的生长和毒性. 城市灰可能会增加Vibrio vulnificus (V. vulnificus) 的抗生素耐药性,构成公共卫生风险.
科学领域:
- 环境微生物学环境微生物学
- 气候变化影响气候变化的影响.
- 传染病的出现 传染病的出现
背景情况:
- 气候变化加剧了传染病,改变了海洋病原体的分布.
- 野火释放出新出现的污染物,增加环境风险.
- 维布里奥病毒 spp. 是海洋病原体,其传播受到气候压力因素的影响.
研究的目的:
- 为了研究城市界面野火灰对 (V. vulnificus) 的生长的影响.
- 为了分析暴露在野火灰中的V. vulnificus的转录组变化.
- 了解灰成分在细菌反应和毒性中的作用.
主要方法:
- 暴露V. vulnificus的结构和植被野火灰.
- 使用HTSeq-DESeq2进行转录组分析,以确定差异表达的基因.
- 对细菌生长的评估,以应对不同的灰痕金属成分.
主要成果:
- 野火灰根据微量金属含量改变了V. vulnificus的生长和基因表达.
- 植物灰 (高Fe) 增强了细菌生长;结构灰 (高Cu,As,Cr) 抑制了生长.
- 升级的基因表明病毒毒性增加以及金属和抗生素耐药性V. vulnificus菌株的选择.
结论:
- 城市野火的灰可以改变V. vulnificus的行为和毒性.
- 混合火灾灰的沿海沉积可能会产生抗生素耐药性维菌的储存库.
- 由于增强的Vibrio与人类的相互作用,这造成了公共卫生风险的增加.
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