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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.
Halophytes for high-saline agriculture: optimising performance and understanding physiology. The recent drought has shaved off up to 1 per cent of Australia's economic growth and resulted in losses of over $6 billion in crop and livestock production. At the same time, very large volumes of water with impaired chemical quality are generated by industry and municipal water treatment processes. In most cases, these cannot be used directly for crop irrigation and have to be disposed of at extreme co ....Halophytes for high-saline agriculture: optimising performance and understanding physiology. The recent drought has shaved off up to 1 per cent of Australia's economic growth and resulted in losses of over $6 billion in crop and livestock production. At the same time, very large volumes of water with impaired chemical quality are generated by industry and municipal water treatment processes. In most cases, these cannot be used directly for crop irrigation and have to be disposed of at extreme cost and waste. This project will utilise halophytes as 'alternative cash crops' to use the saline water produced by the coal seam gas operations in the Surat Basin area in Queensland. This will result in a saving of at least $48 million over the five years of operation.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE140101143
Funder
Australian Research Council
Funding Amount
$395,220.00
Summary
An electrophysiological insight into the role of chloroplasts in stomatal drought signalling. Drought implies a range of stresses with which plants have to cope. Drought is not only a domestic issue for Australian people who live in this dry continent but also significantly affects global food supply and drives climate change. Stomata guard cells exert major controls on global water and carbon cycles. Although the total stomatal pore area may be five per cent of a leaf surface, transpirational w ....An electrophysiological insight into the role of chloroplasts in stomatal drought signalling. Drought implies a range of stresses with which plants have to cope. Drought is not only a domestic issue for Australian people who live in this dry continent but also significantly affects global food supply and drives climate change. Stomata guard cells exert major controls on global water and carbon cycles. Although the total stomatal pore area may be five per cent of a leaf surface, transpirational water loss through the stomata contributes to 70 per cent of total agricultural water usage. As an environmental signal, drought regulates stomatal movements. This project seeks to understand the mechanisms of drought induced molecular retrograde signals and their regulation over stomata. The outcomes will aid the development of strategies for reducing water loss from crops.Read moreRead less
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.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100073
Funder
Australian Research Council
Funding Amount
$280,000.00
Summary
High-throughput sample preparation robotics to enable emerging large-scale plant genomics, metabolomics and proteomics research. Discovering and breeding plants that are best suited for new environmental conditions requires the analysis of many samples to discover the underlying genes, metabolites and proteins. The project will build two robotic instruments that will facilitate the rapid grinding and extraction of plant tissues to facilitate these discoveries across Australia.
Predicting and improving the productivity of plants in future climates. Earth's atmospheric carbon dioxide (CO2) sustains all terrestrial vegetation, yet the effects of increasing concentrations of this gas on plant productivity are difficult to predict. The project aims to undertake experiments on the leaf-level processes that underpin plant productivity in multiple global vegetation systems. This could enable the development of a new theoretical approach to predicting plant productivity in cha ....Predicting and improving the productivity of plants in future climates. Earth's atmospheric carbon dioxide (CO2) sustains all terrestrial vegetation, yet the effects of increasing concentrations of this gas on plant productivity are difficult to predict. The project aims to undertake experiments on the leaf-level processes that underpin plant productivity in multiple global vegetation systems. This could enable the development of a new theoretical approach to predicting plant productivity in changed environmental circumstances at all scales. The results of this project could provide new tools for understanding the vulnerabilities and sensitivities of natural and managed landscapes under environmental pressures associated with increasing CO2.Read moreRead less
Turning water into carbon: a synthesis of plant water-use efficiency from leaf to globe. The efficiency with which plants use water to gain carbon is a fundamental aspect of plant growth that has been frequently measured but is poorly understood. Using our new theory to draw together major datasets, the project will make a dramatic advance in our ability to understand and predict this key aspect of ecosystem function.
Process studies for photocatalytic rejuvenation of spent industrial Bayer liquor. A new low-energy photocatalytic process for the continuous treatment of spent liquor from the Bayer process for alumina production has been demonstrated. This new technology can process up to 1500 litres of industrial caustic effluent per day with a reduction in carbon dioxide release. The photo-treated refinery wastewater also provides water savings of 30 per cent.
Wealth from water: soil information for new sustainable irrigated agriculture in Tasmania. Key to sustainable irrigation for agricultural production is an understanding of the soil resource. Conventional methods to obtain soil information are outdated and expensive. This project will develop a new strategy to quantitatively assess soil sustainability and to analyse management options thoroughly.
Adsorption on activated alumina: mitigating fouling of water treatment processes caused by deposition of silica, organics and hardness ions. Coal seam gas offers tremendous economic potential but development of gas reserves will generate considerable quantities of saline water. This project will develop activated alumina technology for the removal of silica and organics from these waters to enable the industry to use evaporative technologies to reduce water volumes.