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菌comammox细菌的多样性，活性和环境相关性，并评估其与其他典型硝化原核生物相比对硝化过程的相对贡献。氮素转化是关键的微生物过程，硝化作用是陆地生态系统中通过氧化亚氮排放和硝酸盐淋溶造成氮素损失的主要原因。预期的结果将开发新的知识comammox细菌，并提供新的见解，完善的战略，以操纵硝化过程，提高氮的利用效率和可持续农业管理。