Comammox Nitrospira bacteria outnumber canonical nitrifiers irrespective of electron donor mode and availability in biofiltration systems
文献类型：期刊论文
| 作者 | Vilardi, Katherine J.; Cotto, Irmarie; Sevillano, Maria; Dai, Zihan ; Anderson, Christopher L.; Pinto, Ameet
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| 刊名 | FEMS MICROBIOLOGY ECOLOGY
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| 出版日期 | 2022-04-21 |
| 卷号 | 98期号:4页码:fiac032 |
| 关键词 | AMMONIA-OXIDIZING BACTERIA COMPLETE NITRIFICATION MICROBIAL COMMUNITIES NICHE SEPARATION DIVERSITY QUALITY SOIL PHYSIOLOGY ALGORITHM PATTERNS |
| ISSN号 | 0168-6496 |
| 英文摘要 | To better understand the comammox bacterial role within these complex nitrifying communities, we investigated their population dynamics across two nitrogen sources (ammonia or urea) at three total nitrogen dosing strategies. Complete ammonia oxidizing bacteria coexist with canonical ammonia and nitrite oxidizing bacteria in a wide range of environments. Whether this is due to competitive or cooperative interactions, or a result of niche separation is not yet clear. Understanding the factors driving coexistence of nitrifiers is critical to manage nitrification processes occurring in engineered and natural ecosystems. In this study, microcosm-based experiments were used to investigate the impact of nitrogen source and loading on the population dynamics of nitrifiers in drinking water biofilter media. Shotgun sequencing of DNA followed by co-assembly and reconstruction of metagenome assembled genomes revealed clade A2 comammox bacteria were likely the primary nitrifiers within microcosms and increased in abundance over Nitrosomonas-like ammonia and Nitrospira-like nitrite oxidizing bacteria irrespective of nitrogen source type or loading. Changes in comammox bacterial abundance did not correlate with either ammonia or nitrite oxidizing bacterial abundance in urea-amended systems, where metabolic reconstruction indicated potential for cross-feeding between strict ammonia and nitrite oxidizers. In contrast, comammox bacterial abundance demonstrated a negative correlation with nitrite oxidizers in ammonia-amended systems. This suggests potentially weaker synergistic relationships between strict ammonia and nitrite oxidizers might enable comammox bacteria to displace strict nitrite oxidizers from complex nitrifying communities. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47833]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 通讯作者 | Pinto, Ameet |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA 3.Northeastern Univ, Dept Civil & Environm Engn, Boston, MA 02115 USA 4.Univ Chinese Acad Sci, Beijing 100864, Peoples R China |
| 推荐引用方式 GB/T 7714 | Vilardi, Katherine J.,Cotto, Irmarie,Sevillano, Maria,et al. Comammox Nitrospira bacteria outnumber canonical nitrifiers irrespective of electron donor mode and availability in biofiltration systems[J]. FEMS MICROBIOLOGY ECOLOGY,2022,98(4):fiac032. |
| APA | Vilardi, Katherine J.,Cotto, Irmarie,Sevillano, Maria,Dai, Zihan,Anderson, Christopher L.,&Pinto, Ameet.(2022).Comammox Nitrospira bacteria outnumber canonical nitrifiers irrespective of electron donor mode and availability in biofiltration systems.FEMS MICROBIOLOGY ECOLOGY,98(4),fiac032. |
| MLA | Vilardi, Katherine J.,et al."Comammox Nitrospira bacteria outnumber canonical nitrifiers irrespective of electron donor mode and availability in biofiltration systems".FEMS MICROBIOLOGY ECOLOGY 98.4(2022):fiac032. |
入库方式： OAI收割
来源：生态环境研究中心
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