Unlocking secrets of fertility restoration for hybrid breeding in crops. Hybrid varieties give higher and more stable yields than conventional lines, but a cost-effective system to make hybrid seed on a commercial scale is still missing for economically important crops like wheat or barley. By elucidating the mode of action of a new type of restorer gene plus exploiting ancient or exotic wheat and barley collections this project will reveal aspects of largely understudied mechanisms underlying f ....Unlocking secrets of fertility restoration for hybrid breeding in crops. Hybrid varieties give higher and more stable yields than conventional lines, but a cost-effective system to make hybrid seed on a commercial scale is still missing for economically important crops like wheat or barley. By elucidating the mode of action of a new type of restorer gene plus exploiting ancient or exotic wheat and barley collections this project will reveal aspects of largely understudied mechanisms underlying fertility restoration in wheat and barley. The expected outcomes of the proposed research have the potential to deliver new tools for hybrid seed production programs in wheat and barley. Higher and more stable yields from hybrids will ensure food security in the face of an uncertain climate and growing human population.Read moreRead less
The identification of Mycosphaerella graminicola effectors that promote pathogenicity on wheat. Fungal diseases are one of the greatest challenges to sustainable wheat production in the 21st century. Septoria tritici blotch is one such disease as it inflicts millions of tonnes in yield losses per annum. This project will identify the molecular basis of Septoria tritici blotch and assess its potential as an Australian biosecurity threat.
Anticipating, Combating and Exploiting the Evolution of Pesticide Resistance in Australian Agricultural Pests and Disease Vectors. Synthetic insecticides have resulted in an explosion in food production through effective insect control. However, insects have begun to evolve resistance against one of the most widely used classes of insecticides (organophosphates) via mutations in carboxylesterases (CBEs). To address this problem, the ability to anticipate further evolution, combat it and exploit ....Anticipating, Combating and Exploiting the Evolution of Pesticide Resistance in Australian Agricultural Pests and Disease Vectors. Synthetic insecticides have resulted in an explosion in food production through effective insect control. However, insects have begun to evolve resistance against one of the most widely used classes of insecticides (organophosphates) via mutations in carboxylesterases (CBEs). To address this problem, the ability to anticipate further evolution, combat it and exploit it for our own benefit is needed. This project aims to anticipate evolution by simulating it in the laboratory, allowing for the best preparation for change. New pesticides will be designed to combat insecticide resistance based upon the molecular structure of an insect CBE. This project aims to exploit these newly evolved enzymes to create biosensors and decontamination agents.Read moreRead less
The natural function and evolution of an essential parasite transporter. This project aims to resolve the natural function and evolution of a transporter essential to the survival of malaria and other parasites. Malaria and its sibling Apicomplexan parasites cause devastating diseases in humans and livestock across the world. Much remains to be understood about these parasites, and options for controlling them are diminishing. The project will interrogate the functions of the transporter protein ....The natural function and evolution of an essential parasite transporter. This project aims to resolve the natural function and evolution of a transporter essential to the survival of malaria and other parasites. Malaria and its sibling Apicomplexan parasites cause devastating diseases in humans and livestock across the world. Much remains to be understood about these parasites, and options for controlling them are diminishing. The project will interrogate the functions of the transporter proteins. The knowledge gained might help to combat Apicomplexan parasites by targeting these transporters’ native functions.Read moreRead less
Climate dependence of plant respiration in a warmer, drier world. This research will greatly assist in predictions of future net carbon exchange that are necessary if Australia is to better manage its vegetation resources. Crucial to predicting future rates of net carbon exchange is an understanding of how drought and long-term changes in temperature impact on plant respiration. Using laboratory and field studies, this research will develop an understanding of how water availability and temperat ....Climate dependence of plant respiration in a warmer, drier world. This research will greatly assist in predictions of future net carbon exchange that are necessary if Australia is to better manage its vegetation resources. Crucial to predicting future rates of net carbon exchange is an understanding of how drought and long-term changes in temperature impact on plant respiration. Using laboratory and field studies, this research will develop an understanding of how water availability and temperature impact on plant respiration of a broad range of economically important and ecologically relevant plant species. Equations will be formulated that allow modellers to better predict drought-dependent variations in plant respiration (and thus plant productivity), both now and in a future, warmer world.Read moreRead less
Understanding the molecular basis of fungal rust diseases in plants. This project aims to utilise structural biology, biochemistry and molecular biology approaches to substantially deepen our understanding of rust fungi-plant interactions. Fungal rust pathogens cause disease and significant yield losses in our most important food crops. During colonisation, rust fungi utilise secreted effector proteins to cause plant disease. Effectors can also be recognised by plant immunity receptors, leading ....Understanding the molecular basis of fungal rust diseases in plants. This project aims to utilise structural biology, biochemistry and molecular biology approaches to substantially deepen our understanding of rust fungi-plant interactions. Fungal rust pathogens cause disease and significant yield losses in our most important food crops. During colonisation, rust fungi utilise secreted effector proteins to cause plant disease. Effectors can also be recognised by plant immunity receptors, leading to resistance. The intended outcome of this work is to generate knowledge that can be used for the development of disease management and engineering strategies to protect plants from rust fungi. This should provide significant benefits to agricultural productivity and global food security.Read moreRead less
The causes and effects of mortality in tropical Australian trees. Drought can cause the widespread death of tropical trees resulting in large emissions of carbon dioxide to the atmosphere, but predictions of tree death during drought remain rudimentary. This project will combine new data and modelling on how Australian tropical trees respond to drought to improve estimates of tree mortality risk and its impacts.
3D Structure determination of biomacromolecular assemblies from sparse data. This project has direct impact on pharmaceutical research: Biomacromolecular interactions are key points for pharmaceutical intervention and detailed structural knowledge of dynamic protein interactions can significantly accelerate drug development. Australia has invested in expensive instrumentation that can be used with new laboratory methods to obtain information on delicately balanced biomacromolecular interactions, ....3D Structure determination of biomacromolecular assemblies from sparse data. This project has direct impact on pharmaceutical research: Biomacromolecular interactions are key points for pharmaceutical intervention and detailed structural knowledge of dynamic protein interactions can significantly accelerate drug development. Australia has invested in expensive instrumentation that can be used with new laboratory methods to obtain information on delicately balanced biomacromolecular interactions, and how they malfunction in disease. This project will provide a computational framework to increase the impact of this investment by integrating measurements from a range of novel technologies and developing understanding of changes in structure of large protein complexes in different functional states.Read moreRead less
The hidden secondary metabolite biosynthetic potential of fungi. This proposal aims to develop synthetic biology tools to allow rapid access to the hidden metabolites encoded in fungal genomes and discover how they interact with plant and animal hosts. Genome sequencing reveals that fungi harbour vast hidden potential for biosynthesis of bioactive small molecules. The lack of tools to efficiently access this hidden potential has hindered the ability to develop this uncharted chemical diversity f ....The hidden secondary metabolite biosynthetic potential of fungi. This proposal aims to develop synthetic biology tools to allow rapid access to the hidden metabolites encoded in fungal genomes and discover how they interact with plant and animal hosts. Genome sequencing reveals that fungi harbour vast hidden potential for biosynthesis of bioactive small molecules. The lack of tools to efficiently access this hidden potential has hindered the ability to develop this uncharted chemical diversity for pharmaceutics and agriculture, and understand their biological roles in pathogens. Expected outcomes include sources of bioactive molecules and better management of fungal diseases in crops and humans.Read moreRead less
Expanding the molecular tool set for structural studies of proteins and their complexes. Many applications in medical science and drug development depend on our ability to determine the 3D structures of proteins, protein assemblies and protein-ligand complexes. This project will develop novel lanthanide-binding tags and crosslinking agents that can be coupled to unnatural amino acids introduced into proteins with advanced protein chemistry techniques. These new tools will facilitate the collecti ....Expanding the molecular tool set for structural studies of proteins and their complexes. Many applications in medical science and drug development depend on our ability to determine the 3D structures of proteins, protein assemblies and protein-ligand complexes. This project will develop novel lanthanide-binding tags and crosslinking agents that can be coupled to unnatural amino acids introduced into proteins with advanced protein chemistry techniques. These new tools will facilitate the collection of structure restraints by nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR) and mass spectrometry, which are needed to generate accurate models of proteins and their complexes with other molecules. Major beneficial outcome will include an increase in the number of protein targets amenable to rational drug design and improved methods for generating new drug leads.Read moreRead less