水环境中新出现的污染物:通过消毒诱导的活力但不能培养的水中病原体
Chengsong Ye1, Chenclan Chen1, Mingbao Feng2
1College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
水的消毒可以导致水传染病原体 (WPs) 进入可生存但不可培养 (VBNC) 状态,对水的安全构成风险. 了解VBNC WPs对于水生环境中有效控制微生物风险至关重要.
科学领域:
- 环境微生物学环境微生物学
- 水质管理水质管理.
- 公共卫生 公共卫生
背景情况:
- 消毒对于控制由水传播的病原体 (WPs) 至关重要,这是COVID-19大流行加剧的挑战.
- WPs可以进入可生存但不可培养 (VBNC) 状态,避免消毒并威胁到水安全.
- VBNC WPs代表了一个新出现的污染物,需要考虑加强水安全.
研究的目的:
- 系统地审查诱导WPs中的VBNC状态的水消毒方法.
- 为了澄清与水中的不同VBNCWP物种相关的风险.
- 评估VBNC细胞特性和检测方法,以改善风险评估.
主要方法:
- 对水消毒技术的系统性文献审查及其对WPs的影响.
- 对VBNC细胞的物理化学和生理特性进行分析.
- 对VBNC WPs的当前和新兴检测方法的讨论.
主要成果:
- 消毒过程可以诱导WP进入VBNC状态,在物种之间存在不同的风险.
- VBNC细胞表现出不同的形态,生理和复苏潜力,影响健康风险.
- 推实时,无标签检测技术用于研究VBNC WPs.
结论:
- VBNC状态代表了比持久状态更深的休眠状态,与压力和严格的反应系统有关.
- 有害物质的活跃外流有助于VBNC WP的持久性.
- 为了控制微生物风险,需要对VBNC特征,检测和持久性机制进行进一步的研究.
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