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Targeting root architecture to improve plant production in sub-optimal soil. This project aims to identify important missing links in the signalling pathways that connect major plant hormones in their control of root architecture, with a focus on the signalling system that helps plants cope with sub-optimal growing conditions. New discoveries in plant hormones will be applied to crops to provide a deeper understanding of root growth responses under sub-optimal conditions, and to maximise plant e ....Targeting root architecture to improve plant production in sub-optimal soil. This project aims to identify important missing links in the signalling pathways that connect major plant hormones in their control of root architecture, with a focus on the signalling system that helps plants cope with sub-optimal growing conditions. New discoveries in plant hormones will be applied to crops to provide a deeper understanding of root growth responses under sub-optimal conditions, and to maximise plant efficiency. Expected outcomes include a better understanding of signal pathways in roots, improved knowledge about how crops respond to adverse conditions, new knowledge and potential genetic resources for plant industry, and novel ideas about how to improve crop productivity.Read moreRead less
Elucidating the molecular mechanisms of dual function transporter/channels. This project aims to understand how a membrane protein that transports chemical messengers in the brain functions and how it is influenced by the membrane in which it is embedded. Cells from all life forms have a lipid membrane that separates them from their external environment. These membranes contain proteins that control the movements of molecules into and out of cells and are vital for a plethora of physiological pr ....Elucidating the molecular mechanisms of dual function transporter/channels. This project aims to understand how a membrane protein that transports chemical messengers in the brain functions and how it is influenced by the membrane in which it is embedded. Cells from all life forms have a lipid membrane that separates them from their external environment. These membranes contain proteins that control the movements of molecules into and out of cells and are vital for a plethora of physiological processes including cell-to-cell communication. The outcomes of this study will include new knowledge of this process and chemical modifiers of this transport protein. This project will benefit structural biology and biophysics training and may lead to the development of novel compounds that can be used to explore function. Read moreRead less
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
Identifying novel salinity tolerance mechanisms by spatial and temporal analysis of lipids in barley. Agrifood production faces the dual challenges of an increasing world population and the threats of abiotic stresses arising from climate change and the erosion of arable land. Cereals, the major food crops, are poorly adapted to tolerate most abiotic stresses, including salinity. This project applies new technologies investigating spatial and temporal biochemical mechanisms a model cereal, Horde ....Identifying novel salinity tolerance mechanisms by spatial and temporal analysis of lipids in barley. Agrifood production faces the dual challenges of an increasing world population and the threats of abiotic stresses arising from climate change and the erosion of arable land. Cereals, the major food crops, are poorly adapted to tolerate most abiotic stresses, including salinity. This project applies new technologies investigating spatial and temporal biochemical mechanisms a model cereal, Hordeum vulgare (barley), utilises to adapt and tolerate salinity. The aims are to investigate the role of specifically plasma membrane lipids modulating either signalling pathways or membrane fluidity that impacts on adaptation during salinity. The results will provide new leads for the development of cereal germplasm with increased salt tolerance.Read moreRead less
Structural studies of host-pathogen interactions. The host-pathogen interface represents a major frontier for biomedical and biotechnological applications. This project aims to understand at the atomic level two such interfaces. In the first instance, the project will elucidate the molecular basis for inhibition of premature host cell death by poxviruses, in particular vaccinia and variola virus, the causative agent of smallpox. In the second instance, the aim is to understand how defensins, a ....Structural studies of host-pathogen interactions. The host-pathogen interface represents a major frontier for biomedical and biotechnological applications. This project aims to understand at the atomic level two such interfaces. In the first instance, the project will elucidate the molecular basis for inhibition of premature host cell death by poxviruses, in particular vaccinia and variola virus, the causative agent of smallpox. In the second instance, the aim is to understand how defensins, a major class of host defence molecules, recognise microbial targets such as fungi, and exert a potent antimicrobial effect. Understanding the precise molecular mechanisms operating at both these host-pathogen interfaces this will provide novel avenues for the design of antiviral and antimicrobial agents.Read moreRead less
Defining pathways that establish and maintain reproductive cell identity in plant ovules and seeds. Unlike animals, individual somatic cells in plants have the remarkable ability to regenerate into new plants, depending on the signals they perceive. This developmental plasticity is particularly important during normal plant growth, when mature cells adopt new identities within multicellular environments. Tissue complexity is critical for the utilisation of plants in society as food, fuel and fib ....Defining pathways that establish and maintain reproductive cell identity in plant ovules and seeds. Unlike animals, individual somatic cells in plants have the remarkable ability to regenerate into new plants, depending on the signals they perceive. This developmental plasticity is particularly important during normal plant growth, when mature cells adopt new identities within multicellular environments. Tissue complexity is critical for the utilisation of plants in society as food, fuel and fibre, but how and why plant cells adopt or change identity has been difficult to determine. This project aims to employ next-generation molecular methods to identify pathways driving differentiation of specific ovule and seed cell-types, which directly impact crop quality, yield and end-use.Read moreRead less
Establishing Vibrio natriegens as Ultra-Rapid Host for Synthetic Biology. This project aims to harness Vibrio natriegens, the world’s fastest-growing bacterium, as a microbial cell factory for synthetic biology and biotechnology. The project expects to develop new genetic tools and genetically-engineered microbes that can rapidly transform cheap feedstocks, such as plastic waste, into valuable chemicals and bioplastics. Expected outcomes include new knowledge on the mechanisms driving V. natrieg ....Establishing Vibrio natriegens as Ultra-Rapid Host for Synthetic Biology. This project aims to harness Vibrio natriegens, the world’s fastest-growing bacterium, as a microbial cell factory for synthetic biology and biotechnology. The project expects to develop new genetic tools and genetically-engineered microbes that can rapidly transform cheap feedstocks, such as plastic waste, into valuable chemicals and bioplastics. Expected outcomes include new knowledge on the mechanisms driving V. natriegens’ rapid growth, as well as building Australian multidisciplinary research capacity in synthetic biology that can translate this potential into bio-manufacturing processes. Significant benefits include the means to cut plastic pollution in our environment and to provide the basis for a carbon-negative chemical industry.Read moreRead less
Genetics, genomics and evolution of flowering time control in legumes. Flowering in plants is strongly regulated by environmental factors, with important consequences for their natural distribution and use in agriculture. This project will characterise genes, genetic diversity and molecular mechanisms that control flowering in legumes, contributing to fundamental biology, crop improvement and research training.
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.
Decoding the signals in legume symbioses: investigating the role of plant hormones. Plants form intimate relationships with soil microbes that give plants access to previously unavailable but essential nutrients. Legumes are major Australian crops for fodder, grain and nutrients, and are unique in forming symbioses with both nitrogen-fixing bacteria and with mycorrhizal fungi that supply nutrients such as phosphate. This project aims to determine the role of plant hormones (small, mobile, potent ....Decoding the signals in legume symbioses: investigating the role of plant hormones. Plants form intimate relationships with soil microbes that give plants access to previously unavailable but essential nutrients. Legumes are major Australian crops for fodder, grain and nutrients, and are unique in forming symbioses with both nitrogen-fixing bacteria and with mycorrhizal fungi that supply nutrients such as phosphate. This project aims to determine the role of plant hormones (small, mobile, potent growth regulators) in the formation of these relationships. In particular, the role of interactions between hormones and other novel plant signals will be determined. An insight into the common and divergent roles of hormones in these symbioses is essential to provide new tools to maximise nutrient acquisition.Read moreRead less