应用生态学报 ›› 2022, Vol. 33 ›› Issue (10): 2871-2880.doi: 10.13287/j.1001-9332.202210.031
• 综合评述 • 上一篇
王亚军1,2, 司运美1, 李彦娟1*
收稿日期:
2021-07-12
修回日期:
2022-05-18
出版日期:
2022-10-15
发布日期:
2023-04-15
通讯作者:
* E-mail: 405530112@qq.com
作者简介:
王亚军, 男, 1979年生, 博士, 教授。主要从事生物强化技术研究。E-mail: wyj79626@163.com
基金资助:
WANG Ya-jun1,2, SI Yun-mei1, LI Yan-juan1*
Received:
2021-07-12
Revised:
2022-05-18
Online:
2022-10-15
Published:
2023-04-15
摘要: 由于难降解有机污染物和外界环境对水处理系统的冲击干扰,污水水质常出现不达标现象。引入外源含有相关功能基因并且具有基因水平转移能力的工程菌株进行生物强化处理是提高污水处理效能的有效措施。污水处理系统中存在能够分泌信号分子的菌体,菌间具有群体感应现象,当种群密度达到感应阈值时,菌体会通过释放信号分子来触发一些群体行为,从而激活相关基因的表达(如生物膜形成、生物发光、抗生素合成和毒力因子表达等)。早期的群体感应技术研究主要集中在信号传递学、微生物社会行为学和医学微生物领域,近年来,在水处理领域也开始有相继报道,研究表明群体感应在污水生物处理中发挥重要作用,并且影响生物强化菌株的定殖和污染物降解,因此群体感应行为调控是生物强化技术成效显著与否的关键因素。本文综述了群体感应及信号分子的作用机制、信号分子释放及存在的影响因素以及群体感应对菌株定殖、微生物群落结构和污染物去除的影响,并对从群体感应角度出发研究生物强化过程进行了展望,旨在为生物强化技术的有效实施及提升污水处理效能提供一种新思路,为深入理解生物强化过程中群体感应调控行为提供理论参考。
王亚军, 司运美, 李彦娟. 群体感应在生物强化功能菌定殖及降解能力增强中的作用研究进展[J]. 应用生态学报, 2022, 33(10): 2871-2880.
WANG Ya-jun, SI Yun-mei, LI Yan-juan. Research progress on the application of quorum sensing in the colonization and degradation enhancement of bioaugmentation functional bacteria[J]. Chinese Journal of Applied Ecology, 2022, 33(10): 2871-2880.
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