Role of rhizosphere microorganisms in growth of plants in soils with low P availability

根际微生物在低磷有效性土壤中植物生长中的作用

• 批准号: DP0343248
• 负责人: Prof Petra Marschner
• 金额: $ 18.92万
• 依托单位: The University of Adelaide
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0343248
• 关键词: Role; rhizosphere; microorganisms; growth; plants

The concentration of available phosphorus in many Australian soils is low compared to the requirement of plants and soil organisms. Plant genotypes differ in their capacity to grow at low P availability but the role of rhizosphere microorganisms in plant P uptake from such soils is largely unknown. We will determine the role of rhizosphere microorganisms in P solubilisation and mobilisation in different crop genotypes and native plant species in different Australian soils with low P availability. The results will give a comprehensive picture of the role of rhizosphere microbial ecology in phosphorus acquisition by crop and native plants.

澳大利亚许多土壤中有效磷的浓度与植物和土壤生物的需求相比很低。不同基因型的植物在低磷条件下的生长能力不同，但根际微生物在植物吸收磷中的作用尚不清楚。我们将确定根际微生物在磷的溶解和动员在不同的作物基因型和本地植物物种在不同的澳大利亚土壤低磷可用性的作用。研究结果将全面反映根际微生物生态学在作物和本地植物磷素吸收中的作用。