| 海洋环境异养硝化-好氧反硝化菌的研究进展 |
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| 引用本文： | 齐睿洁,王健鑫. 海洋环境异养硝化-好氧反硝化菌的研究进展[J]. 微生物学通报, 2024, 51(1): 66-76 |
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| 作者姓名： | 齐睿洁 王健鑫 |
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| 作者单位： | 浙江海洋大学海洋科学与技术学院, 浙江 舟山 316022 |
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| 基金项目： | 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） |
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| 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。
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| 关 键 词： | 异养硝化-好氧反硝化 代谢途径 生物脱氮 |
| 收稿时间： | 2023-06-01 |
Advances in heterotrophic nitrifying-aerobic denitrifying bacteria in marine environment |
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| QI Ruijie,WANG Jianxin. Advances in heterotrophic nitrifying-aerobic denitrifying bacteria in marine environment[J]. Microbiology China, 2024, 51(1): 66-76 |
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| Authors: | QI Ruijie WANG Jianxin |
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| Affiliation: | Marine Science and Technology College, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, China |
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| Abstract: | 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. |
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| Keywords: | heterotrophic nitrification-aerobic denitrification metabolic pathway biological removal of nitrogen |
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