探索细胞外聚合物物质的变化和相关的抗生素耐药性基因迁移和转化模式在压力和 gibberellin 刺激下的微藻
Xiaoyu Xu1, Yuang Cao2, Suli Zhi3
1Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
Journal of hazardous materials
|November 4, 2025
概括
微藻外细胞聚合物 (EPS) 影响废水中的抗生素耐药基因 (ARG). 吉伯雷林减轻了压力,改善了废水处理和ARG控制的微藻系统.
科学领域:
- 环境微生物学 环境微生物学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 微藻外细胞聚合物 (EPS) 对于畜牧废水中抗生素耐药性基因 (ARG) 转移至关重要.
- 了解环境压力因素和生长调节剂对微藻EPS的影响对于有效的废水管理至关重要.
研究的目的:
- 调查压力和吉伯雷林对微藻生长,生物质,污染物去除和ARG动态的影响.
- 阐明不同EPS层在调解这些变化的作用.
主要方法:
- 在不同度 (1 mg/L和 5 mg/L) 下培育微藻,并进行吉伯雷林处理.
- 分析微藻生长,生物质组成,光合作用色素和污染物去除 (,COD).
- 在不同的EPS分量 (溶解和紧密结合) 内的ARG和细菌群体的量化和表征.
主要成果:
- 低度刺激了微藻的生长;高度抑制了它.
- 吉伯雷林通过增加叶绿素和多糖含量来减轻的毒性.
- 暴露降低了污染物去除效率,改变了细菌群落,增加了ARG的扩散,特别是在紧密结合的EPS中.
- 吉伯雷林减轻了引起的负面影响,增强了微藻的活力和ARG的去除.
结论:
- 微藻EPS结构显著影响畜牧废水中的ARG动态.
- 吉伯雷林可用于改善应激,优化废水处理中微藻的性能,减少ARG传播.
- 结果为开发改进的基于微藻的废水处理系统提供了洞察力.
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