Unique plant hormone responses: the key to nitrogen-fixing nodules

独特的植物激素反应：固氮根瘤的关键

• 批准号: DP190101817
• 负责人: A/Prof Eloise Foo
• 金额: $ 22.62万
• 依托单位: University of Tasmania
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-03-18 至 2022-06-18
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190101817
• 关键词: Unique; plant; hormone; responses; key

This project aims to build a model of the signals that regulate root nodule formation, unique root organs formed by some plants that host nitrogen-fixing bacteria. Nitrogen is often limited in the soil and agriculture relies on nitrogen fertiliser. Sustainable sources of plant nutrients are required to ensure food security and minimise the environmental impact of intensive farming. This project will provide fundamental information on why some species can form nitrogen-fixing nodules by examining the role of plant hormones. This will build the knowledge base required to potentially expand this symbiosis into non-legumes, harnessing the huge advantage nodule forming species have in staple crops.

该项目旨在建立一个调控根瘤形成的信号模型，根瘤是由一些植物形成的独特的根器官，这些植物是固氮菌的宿主。土壤中的氮素往往是有限的，农业依赖氮肥。需要可持续的植物营养来源，以确保粮食安全，并最大限度地减少集约耕作对环境的影响。该项目将通过研究植物激素的作用，提供一些物种为什么会形成固氮根瘤的基本信息。这将建立所需的知识基础，潜在地将这种共生扩大到非豆科植物，利用形成根瘤的物种在主要作物中拥有的巨大优势。