Diatom lipids to reveal sea-ice history in remote Antarctic regions. This project aims to understand seasonal Antarctic sea-ice extent using molecular, geochemical, elemental and genomic characteristics of specific marine phytoplankton (diatoms). Little is known of the seasonal sea-ice variation and the position of the summer sea-ice extent a million years before satellite records, but this information is critical to determining air-sea gas exchange and ecosystem food web regulation. This projec ....Diatom lipids to reveal sea-ice history in remote Antarctic regions. This project aims to understand seasonal Antarctic sea-ice extent using molecular, geochemical, elemental and genomic characteristics of specific marine phytoplankton (diatoms). Little is known of the seasonal sea-ice variation and the position of the summer sea-ice extent a million years before satellite records, but this information is critical to determining air-sea gas exchange and ecosystem food web regulation. This project will unite geochemical and biological approaches to provide the data to improve past Antarctic ecosystem and climate models where sea-ice data is missing. Studying diatom biomarkers in deep sea cores from Australia’s Southern Ocean will redefine knowledge of Antarctic climate and provide data necessary to improve global ecosystem and climate models.Read moreRead less
The molecular record in extraordinarily preserved plants and insects. This project aims to unlock a hidden record of our planet’s past and the life it supported, using a novel approach with benefits for environment and industry. Fossilised soft tissues of plants and insects preserved in sedimentary concretions will be analysed, extending the traditional inorganic fossil framework of major evolutionary events. Understanding the biofilm entombment and preservation mechanisms responsible for this u ....The molecular record in extraordinarily preserved plants and insects. This project aims to unlock a hidden record of our planet’s past and the life it supported, using a novel approach with benefits for environment and industry. Fossilised soft tissues of plants and insects preserved in sedimentary concretions will be analysed, extending the traditional inorganic fossil framework of major evolutionary events. Understanding the biofilm entombment and preservation mechanisms responsible for this unique organic fossil archive will extend our knowledge of microbial functionality. Expected outcomes are a new way for interpreting our planet’s past, with improved understanding of extinction, disease, environmental change and consequent adaptation of plants and insects. Read moreRead less
Ancient weather stations of Australia: charting a continent's descent into aridity and its ecological consequences. Australia has an enviable reputation as a leading innovator in geochronological and geochemical studies and this research will reinforce that standing. The outcomes will promote a better understanding of Australia's arid continent, contribute to studies of global climate change, and provide new insights into the response of ecosystems to such events. In these ways, the project addr ....Ancient weather stations of Australia: charting a continent's descent into aridity and its ecological consequences. Australia has an enviable reputation as a leading innovator in geochronological and geochemical studies and this research will reinforce that standing. The outcomes will promote a better understanding of Australia's arid continent, contribute to studies of global climate change, and provide new insights into the response of ecosystems to such events. In these ways, the project addresses directly our current national research priorities 'water - a critical resource', 'responding to climate change and variability' and 'the sustainable use of Australia's biodiversity'.Read moreRead less
Fire and rain: Drivers of deep-time ecosystem assembly in Australia. This project aims to investigate the influence of bushfires and shifting rainfall patterns on the development of Australia’s dominant ecosystems. By combining a range of novel geochemical, isotopic and palaeontological techniques, this research seeks to reveal the causes and consequences of Australia’s transformation from a forested to mainly open landscape of grassland, shrubland and savannah. The expected outcome is detailed ....Fire and rain: Drivers of deep-time ecosystem assembly in Australia. This project aims to investigate the influence of bushfires and shifting rainfall patterns on the development of Australia’s dominant ecosystems. By combining a range of novel geochemical, isotopic and palaeontological techniques, this research seeks to reveal the causes and consequences of Australia’s transformation from a forested to mainly open landscape of grassland, shrubland and savannah. The expected outcome is detailed knowledge of how changes in fire and rain shaped the ecology and evolution of plants and animals. This knowledge is key to understanding how Australian ecosystems function and to protecting their cultural, economic and environmental values, especially as climate and fire regimes continue to change into the future.Read moreRead less
Metal catalysed reactions in organic synthesis. The major aim of this project is to develop highly efficient metal-catalysed routes to pharmaceuticals, e.g. new antibiotics and other commercially important organic molecules.
Particular attention will be paid to developing systems which facilitate the addition of readily available, cheap small molecules, e.g. hydrogen and carbon monoxide, to unsaturated organic molecules with high regio- and stereoselectivity.
Worldwide demand for enantiomeric ....Metal catalysed reactions in organic synthesis. The major aim of this project is to develop highly efficient metal-catalysed routes to pharmaceuticals, e.g. new antibiotics and other commercially important organic molecules.
Particular attention will be paid to developing systems which facilitate the addition of readily available, cheap small molecules, e.g. hydrogen and carbon monoxide, to unsaturated organic molecules with high regio- and stereoselectivity.
Worldwide demand for enantiomerically pure chiral molecules (i.e. one mirror-image form) continues to rise. New metal-catalysed asymmetric syntheses will help meet this challenge. Tandem metal-catalysed reactions will be used to prepare new heterocyclic compounds with potential as specific metal binding agents and biosensors.Read moreRead less
Biomimetic and Methodology Based Total Synthesis of Bioactive Natural Products. The proposal will study the synthesis of novel natural products that possess biological activities. Most significantly, this project will deliver compounds with anticancer activity. In addition, chemistry may be developed which could be utilised to synthesise a number of bioactive molecules. The rewards of the synthesis of compounds and application for the treatment of cancer and other diseases are enormous for the ....Biomimetic and Methodology Based Total Synthesis of Bioactive Natural Products. The proposal will study the synthesis of novel natural products that possess biological activities. Most significantly, this project will deliver compounds with anticancer activity. In addition, chemistry may be developed which could be utilised to synthesise a number of bioactive molecules. The rewards of the synthesis of compounds and application for the treatment of cancer and other diseases are enormous for the community and in the education and training of scientists.Read moreRead less
Total Synthesis of Novel Metabolites form Microorganisms. The main aim of this proposal is to achieve the chemical synthesis of a number of biologically active novel natural products isolated from microorganisms. This will involve the development of new methods as well as improvement on exisiting approaches developed so far. The targets will include the myxobacteria metabolites crocacins A, B and D and apicularen A, the streptomyces metabolites reveromycin A and spirofungin A and the fungal meta ....Total Synthesis of Novel Metabolites form Microorganisms. The main aim of this proposal is to achieve the chemical synthesis of a number of biologically active novel natural products isolated from microorganisms. This will involve the development of new methods as well as improvement on exisiting approaches developed so far. The targets will include the myxobacteria metabolites crocacins A, B and D and apicularen A, the streptomyces metabolites reveromycin A and spirofungin A and the fungal metabolite zaragozic acid C.
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Synthesis of Bioactive Metabolites from Myxobacteria. The crocacins and apicularens are two diverse groups of biologically active molecules isolated from myxobacteria. Crocacins A-D are dipeptides which show antifungal activity and are highly cytostatic in mammalian cell cultures. The novel macrolide apicularen A is highly active against a number of human tumour cell lines and shows promise as a new type of anticancer compound. The aim of this project is develop a methodology to synthesise these ....Synthesis of Bioactive Metabolites from Myxobacteria. The crocacins and apicularens are two diverse groups of biologically active molecules isolated from myxobacteria. Crocacins A-D are dipeptides which show antifungal activity and are highly cytostatic in mammalian cell cultures. The novel macrolide apicularen A is highly active against a number of human tumour cell lines and shows promise as a new type of anticancer compound. The aim of this project is develop a methodology to synthesise these novel compounds.Read moreRead less
New synthetic strategies to small cyclic peptides. This project aims to invent new synthetic strategies that enable chemical manipulation of small cyclic peptides, a promising class of biologically active molecules with high metabolic stability. Combining theory and practice, this project will develop novel acyl transfer reactions that will allow traceless, site-selective, ring expansion and contraction of small cyclic peptides. This project will result in new synthetic methodology that will sim ....New synthetic strategies to small cyclic peptides. This project aims to invent new synthetic strategies that enable chemical manipulation of small cyclic peptides, a promising class of biologically active molecules with high metabolic stability. Combining theory and practice, this project will develop novel acyl transfer reactions that will allow traceless, site-selective, ring expansion and contraction of small cyclic peptides. This project will result in new synthetic methodology that will simplify the synthesis of an important class of small drug-like molecules. This will provide significant benefits, such as a breakthrough in the synthetic approach to small cyclic peptides, which will strengthen Australia’s international standing in peptide research and provide new strategies for translation to the growing biotechnology industry.Read moreRead less
Groundwater in the southeast Murray Basin: Developing an integrated hydrogeological model and predicting future changes. Agricultural and urban development increases demands on groundwater resources. The sustainable use of groundwater requires a thorough knowledge of hydrogeology. This project addresses the origins, age, and geochemical evolution of groundwater in the Murray Basin, in particular constraining groundwater flow patterns, aquifer-aquitard interaction, water-rock interaction, and gro ....Groundwater in the southeast Murray Basin: Developing an integrated hydrogeological model and predicting future changes. Agricultural and urban development increases demands on groundwater resources. The sustainable use of groundwater requires a thorough knowledge of hydrogeology. This project addresses the origins, age, and geochemical evolution of groundwater in the Murray Basin, in particular constraining groundwater flow patterns, aquifer-aquitard interaction, water-rock interaction, and groundwater-surface water interactions both under present day and previous climatic conditions. The results of this project will ensure that this groundwater resource can be more effectively used and managed sustainably over the long term. In particular, historical responses of the system will be used to predict the effects of landuse or climate changes.Read moreRead less