Comparative toxicology of a fumigant and gasotransmitters: Testing a new model of fumigant toxicity in Caenorhabditis elegans. Fumigants share physical, chemical and functional properties with a medically important class of signalling molecules called gasotransmitters. This project proposes that the toxicity of fumigants is directly caused by their ability to mimic and disrupt gasotransmitter signalling. This project will test this hypothesis using the fumigant phosphine, a chemical that protect ....Comparative toxicology of a fumigant and gasotransmitters: Testing a new model of fumigant toxicity in Caenorhabditis elegans. Fumigants share physical, chemical and functional properties with a medically important class of signalling molecules called gasotransmitters. This project proposes that the toxicity of fumigants is directly caused by their ability to mimic and disrupt gasotransmitter signalling. This project will test this hypothesis using the fumigant phosphine, a chemical that protects the vast majority of the world grain supply from insect pests. This work will show us what makes a fumigant toxic. This knowledge will facilitate the discovery and effective deployment of new fumigants.Read moreRead less
Mechanistic characterisation of genotype x environment interactions in sorghum and arabidopsis. Sorghum is an economically important cereal crop for Australia. In Australia, sorghum is used as a staple animal feed and it is very important for the live stock industry. With the predicted changes of temperature and rainfall patterns due to climate change, negative effects on sorghum yield are expected, which can have adverse effects on Australian economy. Our studies will identify and mark genes th ....Mechanistic characterisation of genotype x environment interactions in sorghum and arabidopsis. Sorghum is an economically important cereal crop for Australia. In Australia, sorghum is used as a staple animal feed and it is very important for the live stock industry. With the predicted changes of temperature and rainfall patterns due to climate change, negative effects on sorghum yield are expected, which can have adverse effects on Australian economy. Our studies will identify and mark genes that regulate flowering and seed production in sorghum in response to changes in temperature and light interactions. These studies will help to develop novel sorghum varieties with desirable characters through plant-breeding programmes.Read moreRead less
NextGen Sorghum: Genomic approaches to novel renewable bioproducts. Next Gen Sorghums will have enhanced nutritional and processing qualities for humans and animals, and be ideal feedstocks for the bio-economy for the delivery of novel products. Our approaches in reverse genetics to identify gene networks which control sorghum seed development, cell size, cell wall thickness and the way in which starch and protein are packaged within the grain will generate knowledge to underpin the future utili ....NextGen Sorghum: Genomic approaches to novel renewable bioproducts. Next Gen Sorghums will have enhanced nutritional and processing qualities for humans and animals, and be ideal feedstocks for the bio-economy for the delivery of novel products. Our approaches in reverse genetics to identify gene networks which control sorghum seed development, cell size, cell wall thickness and the way in which starch and protein are packaged within the grain will generate knowledge to underpin the future utilisation of this important grain. This will help to drive the future of Australian cereals industries, with health benefits to consumers, the enhanced delivery of specialised feedstocks for novel and renewable bio-products, and financial benefits to farmers.Read moreRead less
Graft copolymers from starch and synthetic monomers. Polymer dispersions, manufactured as latexes in large quantities in Australia and elsewhere, have myriad applications, such as in adhesives, bitumen modifiers, paints and paper coatings. This project will create the enabling science to replace by starch the current synthetic products used to stop these dispersions from coagulating. This will create new uses for renewable resources and will reduce environmental insult by avoiding the leaching o ....Graft copolymers from starch and synthetic monomers. Polymer dispersions, manufactured as latexes in large quantities in Australia and elsewhere, have myriad applications, such as in adhesives, bitumen modifiers, paints and paper coatings. This project will create the enabling science to replace by starch the current synthetic products used to stop these dispersions from coagulating. This will create new uses for renewable resources and will reduce environmental insult by avoiding the leaching of biologically incompatible chemicals. By using starch from crops suited for Australia's arid climate, the new technology will reduce both our dependence on imported products and our greenhouse gas emissions.Read moreRead less
Systems biology to integrate genomics into crop improvement programs. Plant breeding programs have not reaped the benefits of the revolution in molecular genetic technologies. This systems biology project will develop mathematical models of plants to span levels of biological organisation from gene to whole organism. It will focus on understanding and modelling the genetics and physiology of key adaptive traits in sorghum and maize. It will use computer simulation to employ resultant gene-to- ....Systems biology to integrate genomics into crop improvement programs. Plant breeding programs have not reaped the benefits of the revolution in molecular genetic technologies. This systems biology project will develop mathematical models of plants to span levels of biological organisation from gene to whole organism. It will focus on understanding and modelling the genetics and physiology of key adaptive traits in sorghum and maize. It will use computer simulation to employ resultant gene-to-phenotype models in ways that will underpin a major shift in how plant breeding programs operate. This new integrating technology will lead to more rapid advance in breeding better adapted and higher yielding crops.Read moreRead less
eSorghum as a bio-fuel feedstock for arid environments. Increasing fuel costs, finite resources and the need to develop more carbon neutral and cleaner fuels have created a need for renewable sources. Ethanol and future generation biofuels (butanol and more energy-rich alcohols) can be extracted from biomass sources. Sorghum is an ideal bioenergy feedstock in the hotter, drier areas of Northern Australia, where starch (grain), sugar and lignocellulose (stover) can be amassed in this water effi ....eSorghum as a bio-fuel feedstock for arid environments. Increasing fuel costs, finite resources and the need to develop more carbon neutral and cleaner fuels have created a need for renewable sources. Ethanol and future generation biofuels (butanol and more energy-rich alcohols) can be extracted from biomass sources. Sorghum is an ideal bioenergy feedstock in the hotter, drier areas of Northern Australia, where starch (grain), sugar and lignocellulose (stover) can be amassed in this water efficient plant. Identifying and manipulating the genes to enable the improvement of sorghum as a dedicated bioenergy crop, will enable the increased efficiency of the Australian biofuels industry and create sustainable rural industries.Read moreRead less
Factors controlling higher-level starch structure. In a new paradigm for cereal chemistry, we will link structural and functional genomics to a mechanistic understanding of starch polymer structure. By using our novel characterization techniques, we will obtain the first data on the complex multiscale structure of starch in cereal grains that will be sensitive to the mechanisms of starch biosynthesis. These results will enable us to identify the genetic and environmental factors that, separately ....Factors controlling higher-level starch structure. In a new paradigm for cereal chemistry, we will link structural and functional genomics to a mechanistic understanding of starch polymer structure. By using our novel characterization techniques, we will obtain the first data on the complex multiscale structure of starch in cereal grains that will be sensitive to the mechanisms of starch biosynthesis. These results will enable us to identify the genetic and environmental factors that, separately and together, control starch structure in a range of cereals. This knowledge will provide a powerful tool for plant breeders and biotechnologists to produce cereals with improved properties.Read moreRead less
Enabling Molecular Plant Breeding for Drought Adaptation Using Genome-to-Phenome Modelling Technologies. Effective molecular plant breeding for improved water productivity of sorghum would generate significant economic and social benefits for rural communities in NE Australia. There is a significant opportunity to expand the sorghum industry in the region. Despite the global financial crisis, global demand for meat continues to increase, generating strong demand from intensive livestock industri ....Enabling Molecular Plant Breeding for Drought Adaptation Using Genome-to-Phenome Modelling Technologies. Effective molecular plant breeding for improved water productivity of sorghum would generate significant economic and social benefits for rural communities in NE Australia. There is a significant opportunity to expand the sorghum industry in the region. Despite the global financial crisis, global demand for meat continues to increase, generating strong demand from intensive livestock industries for feed grain. Price is projected to return to high levels given continuing use of major feed grains for biofuel. A 10% increase in sorghum production would add net value of $48M annually, much via employment. The scientific content of this project positions Australia at the leading edge globally in this emerging research field. Read moreRead less