Molecular mechanisms of signalling by plant immune receptors. This project aims to understand how resistance proteins function and to find new sources of these proteins. Plant diseases account for 15% loss of global crop production, representing a threat to food security. Fungicides, one key form of protection, represent environmental concerns. The other key form of protection corresponds to resistance gene breeding, which is limited by lengthy breeding processes, restricted choice of genes from ....Molecular mechanisms of signalling by plant immune receptors. This project aims to understand how resistance proteins function and to find new sources of these proteins. Plant diseases account for 15% loss of global crop production, representing a threat to food security. Fungicides, one key form of protection, represent environmental concerns. The other key form of protection corresponds to resistance gene breeding, which is limited by lengthy breeding processes, restricted choice of genes from sexually compatible species and short effective time spans in the field. Building on previous research, this project aims to characterise the molecular basis of the Toll/interleukin-1 receptor domain-mediated nicotinamide adenine dinucleotide (NAD+) cleavage and the structural architecture of plant NLR complexes. This knowledge will support the long-term objective of protecting crops from pathogens.Read moreRead less
Understanding the molecular function of plant disease resistance proteins, pathogen effectors and their interaction to protect Australian agriculture. This project aims to understand the processes that enable resistant plants to detect and respond to pathogen attack. The acquired knowledge will form the foundation for durable plant disease resistance measures that can be applied to a wide range of crop diseases in an environmentally sustainable manner.
Structural basis of plant immune receptor signaling. Plants detect invading pathogens and trigger immune responses in a process called “effector-triggered immunity”, in which pathogen effector (avirulence) proteins are recognized by plant resistance proteins, typically so-called “plant NLRs”. Ongoing work in the applicants’ laboratories has shown that oligomerization into “resistosomes” and NAD+ (nicotinamide adenine dinucleotide) cleavage play central roles in the process. Building on these dat ....Structural basis of plant immune receptor signaling. Plants detect invading pathogens and trigger immune responses in a process called “effector-triggered immunity”, in which pathogen effector (avirulence) proteins are recognized by plant resistance proteins, typically so-called “plant NLRs”. Ongoing work in the applicants’ laboratories has shown that oligomerization into “resistosomes” and NAD+ (nicotinamide adenine dinucleotide) cleavage play central roles in the process. Building on these data, the project aims to characterize the structures of the signaling molecules resulting from TIR (Toll/interleukin-1 receptor) domain-mediated NAD+ cleavage and the structural architecture of plant NLR resistosomes. This knowledge will support the long-term objective of protecting crops from pathogens.Read moreRead less
A novel approach for controlling insect vectors of human disease. Insects are responsible for transmitting a wide variety of debilitating human diseases such as malaria, dengue and yellow fever. Unfortunately, there are very few options available for controlling these insect pests. This project will develop a novel, eco-friendly approach for control of mosquitoes and other important disease vectors.
The biology of arbovirus virulence and fitness in arthropod and vertebrate hosts in vivo. In Australia, Ross River virus (RRV) represents significant concern to human health. Between 1992-2005 more than 50,000 notifications of RRV infection have been reported. While not fatal, the disease is responsible for morbidity in the community/individual that can have both social and economic costs. The project has several national benefits. It will help elucidate whether there is any association between ....The biology of arbovirus virulence and fitness in arthropod and vertebrate hosts in vivo. In Australia, Ross River virus (RRV) represents significant concern to human health. Between 1992-2005 more than 50,000 notifications of RRV infection have been reported. While not fatal, the disease is responsible for morbidity in the community/individual that can have both social and economic costs. The project has several national benefits. It will help elucidate whether there is any association between RRV strain and increased risk of RRV transmission and/or occurrence of more severe cases of human disease. It will help develop technologies that can lead towards the identification of viral markers, which could provide new avenues in the design of novel antiviral strategies.
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Combating rising sexually transmitted infections among older Australians. This project aims to explore older Australians' knowledge of, and safe sexual practices in regards to, sexually transmitted infections (STIs). STI rates have increased rapidly amongst older age groups in recent years, yet there is a significant research gap concerning older Australians' knowledge of STIs and the preventative sexual practices they engage in. This project is understood to be the only known Australian study c ....Combating rising sexually transmitted infections among older Australians. This project aims to explore older Australians' knowledge of, and safe sexual practices in regards to, sexually transmitted infections (STIs). STI rates have increased rapidly amongst older age groups in recent years, yet there is a significant research gap concerning older Australians' knowledge of STIs and the preventative sexual practices they engage in. This project is understood to be the only known Australian study considering older people's knowledge and practices in relation to STI prevention. In examining this issue the project aims to contribute towards the development of policy and educational resources for older Australians, and is expected to work towards enabling optimal sexual health for older individuals.Read moreRead less
Harnessing the potential of metals in biocatalysis. The project aims to use an integrated, multi-disciplinary approach to study the properties of a group of related but functionally diverse enzymes; binuclear metallohydrolases (BMHs). These enzymes are of great relevance to protein engineers aiming to produce potent agents for bioremediation and pharmacologists interested in developing drugs. Elucidating and modulating the mode of action of BMHs is thus our main objective and should provide esse ....Harnessing the potential of metals in biocatalysis. The project aims to use an integrated, multi-disciplinary approach to study the properties of a group of related but functionally diverse enzymes; binuclear metallohydrolases (BMHs). These enzymes are of great relevance to protein engineers aiming to produce potent agents for bioremediation and pharmacologists interested in developing drugs. Elucidating and modulating the mode of action of BMHs is thus our main objective and should provide essential information to fully exploit the potential of these enzymes for practical applications. In particular, understanding how metal ions interact with BMHs and how this contributes to their reactivity is crucial to optimally understand their biotechnological potential.Read moreRead less
Synthesis and Biological Evaluation of Australian Sponge Metabolites. The development of concise and flexible syntheses of Australian marine natural products and analogues of ecological/therapeutic significance will emerge. Such activities will lead to the identification and evaluation of molecular entities of value in managing marine environments and help to enhance chemical synthesis capacity in Australia.
Intelligent Image Retrieval from Distorted and Partial Queries for Rapid Mobile Identification of Pests Threatening Food and the Environment. Pests and diseases are major threats to the Australian food industry and environmental biosecurity. A rapid and mobile pest information retrieval system is critical to prevent a pest becoming established and devastating the region. However, automated insect image retrieval remains an unsolved challenge in the research community. This project addresses the ....Intelligent Image Retrieval from Distorted and Partial Queries for Rapid Mobile Identification of Pests Threatening Food and the Environment. Pests and diseases are major threats to the Australian food industry and environmental biosecurity. A rapid and mobile pest information retrieval system is critical to prevent a pest becoming established and devastating the region. However, automated insect image retrieval remains an unsolved challenge in the research community. This project addresses the fundamental problem of distorted and partial image query in cluttered background in order to achieve pest identification at a much earlier on-site stage. The success of this research will not only make a technical breakthrough towards retrieving objects with movable body parts, but also revolutionise the current pest detection and monitoring process.Read moreRead less
Mediator: a new concept for controlled gene expression in plant biotechnology. The Mediator protein complex is a new control point for the activation of all genes in higher organisms and the purpose of this project is to understand how three Mediator subunits regulate disease resistance in plants. The outcomes provide a new concept to direct natural gene expression towards robust crop plants able to cope with climatic variations.