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隔离和识别乙烯降解细菌及其在双相分区生物反应器中的应用

Ran Deng¹, Jing Li^1,2, Bo Yu Liu¹

¹College of Ecology and Environment, Chengdu University of Technology.

The Journal of general and applied microbiology

|August 13, 2024

概括

Pseudomonas plecoglossicida 2P 有效地降解了有害污染物纳斯烯. 这种细菌在生物反应器中实现了98.36%的甲去除,为环境修复提供了有希望的解决方案.

科学领域:

环境微生物学环境微生物学
生物修复技术生物修复技术

背景情况:

纳弗他是一种持久性环境污染物,具有致癌性,致癌性和致变性作用.
有效的生物修复策略对于减轻甲污染至关重要.

研究的目的:

从受污染的土壤中分离和特征化甲降解细菌.
为了研究Pseudomonas plecoglossicida 2P.中纳夫他林降解途径.
使用双相分离生物反应器 (TPPB) 来优化纳夫他林的降解.

主要方法:

隔离和选纳夫他林降解细菌.
全基因组测序用于基因识别与纳夫他林降解相关.
使用响应表面方法来优化生物反应器条件.
使用哈尔丹方程进行动力分析.

主要成果:

隔离了10种纳夫他林降解细菌菌株,其中Pseudomonas plecoglossicida 2P显示出高效率 (36小时降解94.15%).
在P. plecoglossicida 2P中确定了22个基因,这些基因通过酸,酸和甘酸途径参与纳夫他林降解.
在最佳条件下,在24小时内在TPPB中实现了98.36%的纳夫他林降解 (1600 mg/L纳夫他林,OD600=1.3,PWR=2%).
纳夫他林的降解动力学遵循哈尔丹方程 (R2=0.94).

结论:

Pseudomonas plecoglossicida 2P 是一种强大的纳烯降解剂,具有生物修复的潜力.
这项研究阐明了Pseudomonas属内的甲降解机制.
TPPB证明了从废水中去除甲的有效性,为工业应用提供了基础.

关键词:

降解途径的降解途径纳夫塔利尼纳夫塔利尼纳夫塔利尼纳夫塔利尼伪蒙氏菌伪蒙氏菌伪蒙氏菌伪蒙氏菌伪蒙氏菌双相分区生物反应器两相分区生物反应器整个基因组的整个基因组.

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