Plant heterotrimeric G proteins: new roles in defence, stomatal control and ABA perception. Agriculture is an important economic activity in Australia that results in considerable export revenues. Two of the major problems facing agriculture around the globe are the incidence of diseases and the scarcity of water. Agricultural losses caused by plant pathogens and low water availability account for billions of dollars every year and have profound economic and social implications. Water is an extr ....Plant heterotrimeric G proteins: new roles in defence, stomatal control and ABA perception. Agriculture is an important economic activity in Australia that results in considerable export revenues. Two of the major problems facing agriculture around the globe are the incidence of diseases and the scarcity of water. Agricultural losses caused by plant pathogens and low water availability account for billions of dollars every year and have profound economic and social implications. Water is an extremely scarce resource in Australia and periodic droughts inflict immense losses to the Australian agricultural sector. Our research will explore new and cleaner strategies to provide crop protection as well as to increase water use efficiency.Read moreRead less
Combining molecular plant physiology and breeding to improve canola (Brassica napus) performance in dry environments. Canola is Australia's most important oilseed crop with 1,400,000 hectares sown annually worth $560m. The major abiotic factor limiting canola production in Australia is water availability. Transpiration efficiency (TE) is a trait with potential to contribute to improved drought tolerance of grain crops. This project seeks to select canola germplasm with improved TE by indirect s ....Combining molecular plant physiology and breeding to improve canola (Brassica napus) performance in dry environments. Canola is Australia's most important oilseed crop with 1,400,000 hectares sown annually worth $560m. The major abiotic factor limiting canola production in Australia is water availability. Transpiration efficiency (TE) is a trait with potential to contribute to improved drought tolerance of grain crops. This project seeks to select canola germplasm with improved TE by indirect selection for carbon-isotope-discrimination. In addition we will use the extensive Brassica-Arabidopsis genome synteny to locate and alter the expression of genes involved in TE using Arabidopsis as a model. The longterm aim is to improve the reliability and overall grain production of canola in Australia. 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
Circular Plant Proteins with Pharmaceutical Applications. The proposed research will develop methods for using plants as protein production factories. Initially I will use plants to create engineered cyclotides that incorporate peptides with proven therapeutic activity against cancer and multiple sclerosis. Successful production of therapeutic proteins in plants will benefit Australians by making treatments for these and other diseases more accessible. It also has the potential for a major econo ....Circular Plant Proteins with Pharmaceutical Applications. The proposed research will develop methods for using plants as protein production factories. Initially I will use plants to create engineered cyclotides that incorporate peptides with proven therapeutic activity against cancer and multiple sclerosis. Successful production of therapeutic proteins in plants will benefit Australians by making treatments for these and other diseases more accessible. It also has the potential for a major economic benefit from the sales of Australian-based drugs. This proposal will also provide outstanding research training for graduate students in multidisciplinary methods that constitute state-of the-art structural and plant molecular biology.Read moreRead less
Australia’s native sorghums. This project aims to investigate the biological mechanisms driving the evolution of toxic cyanogenic glucosides by exploiting the natural diversity of Australian wild relatives of the crop sorghum that are adapted to different environments. Wild crop relatives are an important source of traits for improving their cultivated counterparts. Analysing the diversity and evolution of Australia’s 17 native sorghum species will provide new understanding of how plants have ad ....Australia’s native sorghums. This project aims to investigate the biological mechanisms driving the evolution of toxic cyanogenic glucosides by exploiting the natural diversity of Australian wild relatives of the crop sorghum that are adapted to different environments. Wild crop relatives are an important source of traits for improving their cultivated counterparts. Analysing the diversity and evolution of Australia’s 17 native sorghum species will provide new understanding of how plants have adapted to environmental challenges across diverse Australian environments. This should provide significant benefit by providing new resources for plant breeders to produce more climate-resilient crops.Read moreRead less
Targeting and stabilizing proteins in sugar storage vacuoles for metabolic engineering in sugarcane. We have isolated a novel gene for an enzyme that efficiently converts sucrose into a product of much higher value. We have shown that the enzyme functions in sugarcane, a first example of the potential for new biosynthetic capacities in this highly productive crop. Because 90% of stored sucrose is in specialized vacuoles, the enzyme needs to be directed into these vacuoles, and made stable and ac ....Targeting and stabilizing proteins in sugar storage vacuoles for metabolic engineering in sugarcane. We have isolated a novel gene for an enzyme that efficiently converts sucrose into a product of much higher value. We have shown that the enzyme functions in sugarcane, a first example of the potential for new biosynthetic capacities in this highly productive crop. Because 90% of stored sucrose is in specialized vacuoles, the enzyme needs to be directed into these vacuoles, and made stable and active there. This is feasible by building on recent discoveries about vacuolar targeting in plants. The outputs include scientific understanding to underpin metabolic engineering in plants, and a profitable high-technology export industry for Australia.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
Establishing the role of heterotrimeric G-proteins in plant defence. Agriculture is an important economic activity in Australia that resulting in considerable export revenues. Agricultural losses caused by plant pathogens account for millions of dollars every year and have profound economic and social implications.
The proposed research will explore new approaches to increase plant resistance to pathogens using a previously unkown component of this network: G-proteins and could ultimately reduc ....Establishing the role of heterotrimeric G-proteins in plant defence. Agriculture is an important economic activity in Australia that resulting in considerable export revenues. Agricultural losses caused by plant pathogens account for millions of dollars every year and have profound economic and social implications.
The proposed research will explore new approaches to increase plant resistance to pathogens using a previously unkown component of this network: G-proteins and could ultimately reduce dependency on toxic chemical products.Read moreRead less
Discovery of novel circular proteins in bacteria, plants and animals: applications in drug design and crop protection. The overall goal is to use innovative methods in chemistry, biochemistry and molecular biology to determine the structures and functions of several families of circular proteins that have exciting pharmaceutical and agricultural applications. These molecules differ from conventional proteins in that they have no ends: their termini are seamlessly joined, thereby making them exce ....Discovery of novel circular proteins in bacteria, plants and animals: applications in drug design and crop protection. The overall goal is to use innovative methods in chemistry, biochemistry and molecular biology to determine the structures and functions of several families of circular proteins that have exciting pharmaceutical and agricultural applications. These molecules differ from conventional proteins in that they have no ends: their termini are seamlessly joined, thereby making them exceptionally stable and resistant to enzyme digestion. The big question is ?How and why does Nature produce circular proteins?" Increasing our knowledge of why circular proteins have evolved will facilitate their applications in drug design and in the development of novel insecticides.Read moreRead less