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硫碳酸盐被 Pseudomonas sp. 降解 Th1 和 Cupriavidus oxalaticus Th2 从土壤中分离出来的
Ha Danh Duc1, Nguyen Thi Oanh2, Nguyen Thi Mai Khanh3
1Dong Thap University, 783 Pham Huu Lau Street, Cao Lanh City, Dong Thap Province, Vietnam. hadanhduc@gmail.com.
Current microbiology
|September 19, 2023
概括
有两个细菌菌株,Pseudomonas sp. Th1和Cupriavidus oxalaticus Th2有效降解了除草剂thiobencarb的作用. 它们的混合培养,特别是当它们固定时,显著增加了土壤和液体介质中的生物降解.
科学领域:
- 环境微生物学环境微生物学
- 生物修复是一种生物修复.
- 化学工程是化学工程的组成部分.
背景情况:
- 硫碳酸是一种广泛使用的除草剂,由于其持久性,造成环境风险.
- 开发高效的生物降解方法对于减轻除草剂污染至关重要.
研究的目的:
- 为了研究由Pseudomonas sp.产生的硫碳酸盐的生物降解. Th1和Cupriavidus oxalaticus Th2.2. 这两种类型的虫.
- 为了比较商业化除草剂配方中的纯硫碳酸与硫碳酸的降解动力学.
- 评估固定细菌细胞和混合培养在增强硫碳化合物降解中的有效性.
主要方法:
- 两种能够利用硫碳酸作为唯一营养来源的细菌菌株的分离和表征.
- 使用迈凯利斯-门和爱德华兹模型对硫碳酸盐降解的动态分析.
- 评估液体介质,包装床生物反应器和土壤微观宇宙中的降解效率.
- 分析中间产品的积累和细菌不动化的影响.
主要成果:
- 伪omonas sp. 这种病毒是假的. Th1和C. oxalaticus Th2表现出显著的硫碳酸盐利用率.
- 降解动力学在纯硫碳酸盐 (迈凯利斯-门) 和配方硫碳酸盐 (爱德华兹模型) 之间有所不同.
- 混合细菌培养减少了中间积累,固定细胞在生物反应器中呈现出增强的降解.
- 在土壤中注射混合培养改善了硫和的降解.
结论:
- 这项研究强调了Pseudomonas sp.的潜力. Th1和C. oxalaticus Th2用于硫碳酸盐生物修复.
- 细菌固定和混合培养应用提高了除草剂降解效率.
- 了解纯除草剂和配方除草剂之间的降解差异对于有效的环境管理至关重要.
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