The role of mycorrhizal fungi in nutrient supply and habitat specificity of the rare underground orchid (Rhizanthella gardneri)

菌根真菌在稀有地下兰花（Rhizanthellagardneri）的营养供应和生境特异性中的作用

• 批准号: LP0454276
• 负责人: Prof Pauline Grierson
• 金额: $ 7.08万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-03-18 至 2007-03-17
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0454276
• 关键词: role; mycorrhizal; fungi; nutrient; supply

The underground orchid (Rhizanthella gardneri) is an extremely rare achlorophyllous myco-heterotroph that shares a mycorrhizal fungus with broom bush (Melaleuca uncinata). This project will investigate habitat requirements for R. gardneri and assess the orchid dependence on M. uncinata for carbon and nutrient supply. We will measure magnitude and timing of nutrient and carbon transfers between M. uncinata roots, fungal hyphae and R. gardneri using stable isotope techniques. This project will provide knowledge essential for conserving the underground orchid, a unique Australian plant, and other critically endangered orchids.

地下兰花（Rhizanthella gardneri）是一种极其罕见的无叶绿素异养菌，与金雀花（Melaleuca uncinata）共享一种菌根真菌。 本项目将调查栖息地的要求，R。gardneri，并评估兰花对M. uncinata的碳和养分供应。我们将测量M. uncinata根、真菌菌丝和R. gardneri使用稳定同位素技术。 该项目将提供保护地下兰花（一种独特的澳大利亚植物）和其他极度濒危兰花所必需的知识。