Functional characterisation of the necrotrophic effector proteins Tox1 and Tox3 from the wheat pathogen Stagonospora nodorum. Fungal pathogens cost the Australian agricultural industry over one billion dollars per year. This project will build upon recent key advances to provide a fundamental basis on how fungal pathogens cause disease. The results from this study will promote future advances in disease management with the aim of securing Australian wheat supplies.
Interactions between genotype, plant nutrition and fungal disease development in strawberry. Strawberry (Fragaria x ananassa) growers lose more than 30% of their crop annually to disease. This project will elucidate the role of plant nutrition in disease development and investigate the interaction/s between plant genotype, pathogen and the environment. The physiological basis for durable resistance will also be established. Molecular markers for field resistance and nutrient use efficiency will ....Interactions between genotype, plant nutrition and fungal disease development in strawberry. Strawberry (Fragaria x ananassa) growers lose more than 30% of their crop annually to disease. This project will elucidate the role of plant nutrition in disease development and investigate the interaction/s between plant genotype, pathogen and the environment. The physiological basis for durable resistance will also be established. Molecular markers for field resistance and nutrient use efficiency will be developed for use in breeding programs. Furthermore, this project will enhance profitability and sustainability of the Australian strawberry industry.
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Discovery Early Career Researcher Award - Grant ID: DE120101562
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Quantifying the contribution of leaf vein networks to the leaf economics spectrum in native and agricultural species. Using a combination of eco-physiological and geometric measures this project will evaluate the influence of leaf vein networks on leaf economics. It is expected that this work will identify vein investment and network design as major sources of variability underlying species adaptive strategies, and the global leaf economics spectrum as a whole.
The role of plant hormones in legume symbioses. Soil microbes can give plants access to previously unavailable but essential nutrients through symbioses. Legumes are unique as they form symbioses with both nitrogen-fixing bacteria and with mycorrhizal fungi that supply nutrients such as phosphate. This proposal will investigate the role of the plant hormones (small, mobile, potent growth regulators) in the formation of these symbiotic relationships across legume genera. An insight into the commo ....The role of plant hormones in legume symbioses. Soil microbes can give plants access to previously unavailable but essential nutrients through symbioses. Legumes are unique as they form symbioses with both nitrogen-fixing bacteria and with mycorrhizal fungi that supply nutrients such as phosphate. This proposal will investigate the role of the plant hormones (small, mobile, potent growth regulators) in the formation of these symbiotic relationships across legume genera. An insight into the common and divergent roles of hormones in these symbioses is essential to provide researchers and breeders with new tools to maximise nutrient acquisition by legumes, important crops contributing an estimated one billion Australian dollars per year to the Australian economy.Read moreRead less
Cell wall invertase regulates fruit and seed development through sugar signals, sugar transporters and plasmodesmal gating. This project seeks to understand the molecular and cellular events controlling carbohydrate allocation in fruit and seed by focusing the coupling between sugar metabolism and transport using tomato as a model. The information generated may provide technological opportunities to improve fruit and seed development hence, crop yield.
Mechanisms regulating plant cell expansion: assessing the role of aquaporins and sugar signalling. This project seeks to understand the role of water channel genes in controlling water flow into expanding plant cells by using cotton fibre as a model cell. Water flow plays critical roles in plant growth, hence yield. The information generated may provide technological opportunities for improving water flow and utilization, hence, crop yield.
Does manipulation of carbon and nitrogen metabolism in transgenic rice modify flag leaf senescence and grain filling at elevated CO2? This collaborative project between Australia and Japan aims to develop strategies for genetic manipulation of rice to improve grain yield of crops growing under rising atmospheric carbon dioxide (CO2) concentrations. A promising strategy is to slow aging of leaves that supply sugars and nitrogen to the developing grain for synthesis of starch and protein. High CO2 ....Does manipulation of carbon and nitrogen metabolism in transgenic rice modify flag leaf senescence and grain filling at elevated CO2? This collaborative project between Australia and Japan aims to develop strategies for genetic manipulation of rice to improve grain yield of crops growing under rising atmospheric carbon dioxide (CO2) concentrations. A promising strategy is to slow aging of leaves that supply sugars and nitrogen to the developing grain for synthesis of starch and protein. High CO2 alters the balance between supply and demand processes and consequently the first step in developing a strategy is to understand how these processes are regulated. To achieve this understanding we will use genetically modified plants with single alterations to either supply or demand functions.Read moreRead less
Mineral content of leaves and the ratio of water loss to carbon gain: environmental and genetic controls and comparison with stable isotopic measures. The ash content of leaves has promise as a cheap screen of water-use efficiency or of 'vigour' in crop plants, but the underlying mechanisms are not understood. The underlying science is at the intersection of plant growth, water use and nutrition. This project will aid breeders in understanding the conditions under which the screen may work.
A novel DNA motif involved in plant mitochondrial stress responses. The future of Australia's agriculture is threatened by limited water resources, temperature extremes and soil salinity. This project aims to unravel how plants are able to adapt to this continuously changing environment, by focusing on the role of mitochondria - cellular compartments essential for energy metabolism and plant stress responses.
Regulation of photosynthesis by phosphorus in Australia’s C3 and C4 tropical grasses. Tropical grasses with distinctly different photosynthetic biochemistry (C3 and C4) dominate Australia's vast tropical grasslands. The soils of this ancient landscape are chronically low in the mineral nutrient phosphorus that plays a crucial role in regulating photosynthesis. The project will use an integrated experimental approach and novel techniques such as metabolomics to unravel and define the intricate ....Regulation of photosynthesis by phosphorus in Australia’s C3 and C4 tropical grasses. Tropical grasses with distinctly different photosynthetic biochemistry (C3 and C4) dominate Australia's vast tropical grasslands. The soils of this ancient landscape are chronically low in the mineral nutrient phosphorus that plays a crucial role in regulating photosynthesis. The project will use an integrated experimental approach and novel techniques such as metabolomics to unravel and define the intricate mechanisms by which phosphorus regulates the complex photosynthetic biochemistry of C4 grasses. The new scientific knowledge generated by the project will be used for pasture management models to ensure that successful strategies are implemented to reduce soil loss from our fragile grasslands.Read moreRead less