Characterising controls of carbon flow from trees into mycorrhizal fungi

表征从树木到菌根真菌的碳流控制

• 批准号: DP160102684
• 负责人: Prof Ian Anderson
• 金额: $ 25.99万
• 依托单位: Western Sydney University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-06-01 至 2019-05-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP160102684
• 关键词: Characterising; controls; carbon; flow; trees

This project aims to improve our understanding of below-ground carbon sequestration. A significant portion of plant photosynthate is shuttled to root-associated mutualistic ectomycorrhizal fungi in forest ecosystems. Therefore, fungal partners of forest trees are valuable carbon sinks. One problem impeding below-ground carbon accounting in forest soils is a lack of understanding concerning the genetic control of how photosynthetically fixed sugars are passed to root-associated microbes. This project aims to identify and characterise the sugar transporters that shuttle carbon in ectomycorrhizal plant–fungal interactions and investigate how these are affected by elevated carbon dioxide. It may also identify isolates of mutualistic fungi that could be paired with eucalypt hosts to maximise carbon sequestration and forest productivity.

该项目旨在提高我们对地下碳封存的理解。在森林生态系统中，植物光合产物的很大一部分是通过与根共生的外生菌根真菌转运的。因此，森林树木的真菌伙伴是有价值的碳汇。阻碍森林土壤地下碳核算的一个问题是缺乏对光合作用固定糖如何传递给根相关微生物的遗传控制的了解。该项目旨在鉴定和鉴定在外生菌根植物-真菌相互作用中穿梭碳的糖转运蛋白，并研究这些转运蛋白如何受到二氧化碳浓度升高的影响。它还可以识别出可以与真核生物宿主配对的互利共生真菌的分离物，以最大限度地提高碳固存和森林生产力。