海洋环境异养硝化-好氧反硝化菌的研究进展  

Advances in heterotrophic nitrifying-aerobic denitrifying bacteria in marine environment

作　　者：齐睿洁 王健鑫 QI Ruijie;WANG Jianxin(Marine Science and Technology College,Zhejiang Ocean University,Zhoushan 316022,Zhejiang,China)

机构地区：[1]浙江海洋大学海洋科学与技术学院,浙江舟山316022

出　　处：《微生物学通报》2024年第1期66-76,共11页Microbiology China

基　　金：浙江省重点研发计划(2021C02047,2022C02040);国家大学生创新创业训练计划(202210340015)。

摘　　要：异养硝化-好氧反硝化(heterotrophic nitrifying-aerobic denitrification,HN-AD)菌的发现打破了传统的脱氮理论,可以在有氧条件下同时进行硝化和反硝化,成为近年来的研究热点。HN-AD细菌在海洋氮循环中发挥着重要作用。本文对海洋环境中HN-AD菌的多样性和部分已知氮代谢途径及相关酶系进行了介绍,分析了盐度、碳氮比、溶解氧、pH等环境因素对HN-AD菌脱氮效果的影响,对其工艺和技术应用、前景和发展方向进行了综述和展望。The discovery of heterotrophic nitrifying-aerobic denitrifying(HN-AD)bacteria updates the conventional theory of nitrifying.The HN-AD bacteria capable of simultaneous nitrification and denitrification under aerobic conditions have become a research hotspot in recent years.These bacteria play a key role in the marine nitrogen cycle.We introduced the diversity,nitrogen metabolic pathways,and related enzymes of marine HN-AD bacteria and analyzed the effects of environmental factors(salinity,C/N ratio,dissolved oxygen,pH,etc.)on the denitrifying performance of HN-AD bacteria.Furthermore,we summarized the functioning processes and applications of these bacteria and made an outlook on the development directions of this field.

关 键 词：异养硝化-好氧反硝化 代谢途径 生物脱氮 

分 类 号：X172[环境科学与工程—环境科学] X145