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

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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.