Contribution of comammox bacteria to soil nitrification

comammox 细菌对土壤硝化作用的贡献

• 批准号: FT190100383
• 负责人: Prof Jizheng He
• 金额: $ 69.55万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: ARC Future Fellowships
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/FT190100383
• 关键词: Contribution; comammox; bacteria; soil; nitrification

This project aims to understand the diversity, activity and environmental relevance of comammox bacteria, the newly-discovered complete nitrifiers, in Australian soils, and to evaluate their relative contributions to nitrification processes compared to other canonical nitrifying prokaryotes. Nitrogen transformations are pivotal microbial processes, with nitrification largely responsible for nitrogen losses through nitrous oxide emissions and nitrate leaching in the terrestrial ecosystems. The expected outcomes will develop new knowledge on the comammox bacteria and provide novel insights into refined strategies to manipulate nitrification processes for improved nitrogen use efficiency and sustainable agricultural management.

该项目旨在了解澳大利亚土壤中新发现的完整硝化剂的多样性，活动和环境相关性，并评估其与其他规范的硝化念头相比，它们对硝化过程的相对贡献。氮的转化是关键的微生物过程，硝化在很大程度上是通过一氧化二氮排放和陆地生态系统中的硝酸盐浸出的氮损失。预期的结果将开发有关Comammox细菌的新知识，并为操纵硝化过程的精致策略提供新的见解，以提高氮的使用效率和可持续的农业管理。