Facilitation of high leaf phosphorus-use efficiency by nitrate restraint

该项目旨在确定蚕豆科、桃金桃科和蛋白酶科植物的高磷利用效率与氮代谢之间的联系，这三个植物科在澳大利亚西南部的一个全球生物多样性热点地区极度缺磷的土壤中共同占主导地位。这些植物的高磷利用效率与低氮吸收能力有不可分割的联系。预期的结果是对这些植物如何实现高效磷和氮利用的新见解，为植物在异常生物多样性的生态系统中的功能提供新的认识，并为可能导致更高肥料利用效率的作物的性状提供新的认识。

This project aims to determine the link between high phosphorus use efficiency and nitrogen metabolism in the Fabaceae, Myrtaceae and Proteaceace, the three families of plants that co-dominate the flora on the extremely phosphorus-impoverished soils of south-western Australia, a Global Biodiversity Hotspot. It is expected that the extremely high phosphorus use efficiency in these plants is inextricably linked to a low capacity for nitrogen uptake. An anticipated outcome is new insight into how these plants achieve highly efficient phosphorus and nitrogen use, providing new understanding into the functioning of plants in an exceptionally biodiverse ecosystem and into traits that may lead to to crops with higher fertilizer use efficiency.