Molecular mechanisms underlying extensive replacement of phospholipids by galactolipids and sulfolipids in Hakea prostrata during leaf development

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Proteaceae that live on the most nutrient-impoverished soils in the world have an exquisite ability to minimise the amount of phosphorus in cellular membranes of mature leaves by replacing phosphorus-containing lipids with those lacking phosphorus. The project will investigate if this also occurs in the roots and discover the molecular basis for this minimisation that does not compromise plant functioning. The outcomes will be an improved understanding of how these plants function with such low tissue phosphorus concentrations and the identification of molecular markers that will be valuable to screen crop plants for increased phosphorus-use efficiency, leading to decreased consumption of dwindling and expensive phosphorus fertiliser reserves.