Can eco-evolutionary theories explain outcomes of microbiome coalescence . Environmental microbial communities are among the most abundant and diverse natural communities, responsible for many ecologically and economically important ecosystem functions, including primary productivity and climate regulation. This project aims to identify the biotic and abiotic factors that regulate community and functional outcomes of microbiome coalescence (the mixing of two different communities) caused by natu ....Can eco-evolutionary theories explain outcomes of microbiome coalescence . Environmental microbial communities are among the most abundant and diverse natural communities, responsible for many ecologically and economically important ecosystem functions, including primary productivity and climate regulation. This project aims to identify the biotic and abiotic factors that regulate community and functional outcomes of microbiome coalescence (the mixing of two different communities) caused by natural and anthropogenic activities. The outcomes will provide a unifying ecological framework to predict variation in microbiomes across different scales, ecosystem types and disturbances, and will generate critical knowledge for the development of effective microbiome products, a rapidly growing industryRead moreRead less
How do cells survive nutrient stress? Insight into mechanisms. This project studies cell survival under nutrient stress in eukaryotes. Building on extensive preliminary data that identifies novel TOR (Target of Rapamycin) Complex 2 (TORC2) control points it expects to generate new knowledge of critical and conserved features of stress control of macroautophagy that ensures cell survival. It uses interdisciplinary and innovative approaches to validate and characterize nutrient-stress dependent si ....How do cells survive nutrient stress? Insight into mechanisms. This project studies cell survival under nutrient stress in eukaryotes. Building on extensive preliminary data that identifies novel TOR (Target of Rapamycin) Complex 2 (TORC2) control points it expects to generate new knowledge of critical and conserved features of stress control of macroautophagy that ensures cell survival. It uses interdisciplinary and innovative approaches to validate and characterize nutrient-stress dependent signaling. Expected outcomes include novel insights into environmental control of cell proliferation and forging cross institutional collaborations. This knowledge benefits basic and applied biology and is relevant to industries/projects utilizing living cells as nutrient supports cell survival and proliferation.Read moreRead less
Placental nutrient transport shows how complex traits evolve. This project aims to use amino acid transport in the vertebrate placenta as a model to demonstrate how genes are recruited and modified to produce a major organ. Using an innovative combination of a new technology, selected reaction monitoring, and transcriptomic and molecular approaches, plus carefully selected Australian species pairs, this project will study the evolution of a complex trait (placental amino acid transport). The pr ....Placental nutrient transport shows how complex traits evolve. This project aims to use amino acid transport in the vertebrate placenta as a model to demonstrate how genes are recruited and modified to produce a major organ. Using an innovative combination of a new technology, selected reaction monitoring, and transcriptomic and molecular approaches, plus carefully selected Australian species pairs, this project will study the evolution of a complex trait (placental amino acid transport). The project will provide fundamental advances in our knowledge of the nutrient transport during pregnancy that is required to produce a healthy baby.Read moreRead less
Multitrophic interactions drive diversity-ecosystem function relationships. Soil communities, among the most abundant and diverse in nature are responsible for many critical ecosystem functions, including nutrient cycling and climate regulation. This project will determine whether consideration and quantification of interactions between different biotic communities – specifically among plants, soil microbes and animals, within and across trophic levels - can address underlying shortcomings in pr ....Multitrophic interactions drive diversity-ecosystem function relationships. Soil communities, among the most abundant and diverse in nature are responsible for many critical ecosystem functions, including nutrient cycling and climate regulation. This project will determine whether consideration and quantification of interactions between different biotic communities – specifically among plants, soil microbes and animals, within and across trophic levels - can address underlying shortcomings in predictions from classical biodiversity-ecosystem function theory. By advancing understanding of biological complexity and its impacts on ecosystem functions, the project will provide a unifying framework for understanding variation in ecosystem functions across scales, ecosystem types and multiple environmental disturbances.Read moreRead less
Navigating flux control through a branched metabolic pathway. This project aims to uncover control points and programmes in the mevalonate pathway, an important cellular metabolic pathway that produces cholesterol and isoprenoids. Knowledge of its regulation is largely restricted to just one enzyme (HMGCR). This project will determine how regulation of the later sterol-producing segment affects the early isoprenoid-segment of the mevalonate pathway; investigate how the two alternate routes to ch ....Navigating flux control through a branched metabolic pathway. This project aims to uncover control points and programmes in the mevalonate pathway, an important cellular metabolic pathway that produces cholesterol and isoprenoids. Knowledge of its regulation is largely restricted to just one enzyme (HMGCR). This project will determine how regulation of the later sterol-producing segment affects the early isoprenoid-segment of the mevalonate pathway; investigate how the two alternate routes to cholesterol synthesis operate and are regulated; and explore a co-ordinated and possibly co-operative transcriptional program. This project is expected to provide valuable knowledge of how cells control these critical lipids, which will ultimately inform better ways to treat diseases of cholesterol excess and defects in this pathway.Read moreRead less
Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial ana ....Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial analysis and modelling methods. Expected outcomes are a mechanistic understanding of tree-mediated methane fluxes, helping to constrain regional, national and global methane budgets. The results of this study will help inform publicly funded greenhouse gas abatement strategies, ensuring a maximal return on investment.Read moreRead less
Molecular mechanisms determining the lipid composition of synapses. Synapses between neurons play a key role in all functions of the nervous system including learning and memory. They are mostly composed of the unique combination of proteins and lipids, which function together to enable neurotransmission. While the molecular mechanisms determining the protein composition of synapses are well characterised, the mechanisms defining the lipid composition of synapses remain unknown. The project will ....Molecular mechanisms determining the lipid composition of synapses. Synapses between neurons play a key role in all functions of the nervous system including learning and memory. They are mostly composed of the unique combination of proteins and lipids, which function together to enable neurotransmission. While the molecular mechanisms determining the protein composition of synapses are well characterised, the mechanisms defining the lipid composition of synapses remain unknown. The project will use advanced techniques of neuroscience and lipid research to determine the mechanisms of lipid transport and retention at synapses. The project is expected to generate new knowledge about the fundamental mechanisms of brain function, which will be useful for developing new therapeutics enhancing the brain power.Read moreRead less
Migration-Dependent Signalling in Macrophages . The project aims to investigate a mechanism of communication used by immune cells to guide each other towards sites of damage. The project will characterise newly revealed cell signalling membrane trails left behind by migrating cells, utilising biochemistry, innovative imaging and microscopy and a transparent zebrafish model to view cell migration through living tissues. Expected outcomes include new fundamental knowledge in the area of immune cel ....Migration-Dependent Signalling in Macrophages . The project aims to investigate a mechanism of communication used by immune cells to guide each other towards sites of damage. The project will characterise newly revealed cell signalling membrane trails left behind by migrating cells, utilising biochemistry, innovative imaging and microscopy and a transparent zebrafish model to view cell migration through living tissues. Expected outcomes include new fundamental knowledge in the area of immune cell migration with relevance to the basic biology of inflammation, repair and regeneration and new innovations for cell imaging. Significant benefits are expected to arise from this new knowledge and from advanced skills training and improved national capabilities in bio-imaging and analysis.Read moreRead less
Shallow water carbonate sediment dissolution in the global carbon cycle. Carbonate sediment dissolution is a globally significant process, but poorly understood in shallow marine waters. This project will determine whether the combined effect of organic matter, ocean acidification and pore water flow in shallow water carbonate sediments increases the release of calcium and alkalinity to the ocean. This project is significant because this release has not previously been accounted for and may lead ....Shallow water carbonate sediment dissolution in the global carbon cycle. Carbonate sediment dissolution is a globally significant process, but poorly understood in shallow marine waters. This project will determine whether the combined effect of organic matter, ocean acidification and pore water flow in shallow water carbonate sediments increases the release of calcium and alkalinity to the ocean. This project is significant because this release has not previously been accounted for and may lead to an additional uptake of atmospheric carbon dioxide into the global ocean, maybe some additional buffering against ocean acidification, but unfortunately, maybe also a loss of carbonate ecosystems. The outcomes of this project will make a significant contribution to our understanding of the global carbon cycle.
Read moreRead less
Elucidating the mechanisms of mitochondrial DNA escape. The human body is powered by mitochondria, microscopic components of living cells that make the energy they need to function. Mitochondrial damage is linked to a wide spectrum of human diseases, from devastating syndromic illnesses to neurodegeneration and autoimmunity. This project is focused on 1) how stresses such as cancer therapy or infection cause mitochondrial damage, and 2) understanding the biological processes that are triggered i ....Elucidating the mechanisms of mitochondrial DNA escape. The human body is powered by mitochondria, microscopic components of living cells that make the energy they need to function. Mitochondrial damage is linked to a wide spectrum of human diseases, from devastating syndromic illnesses to neurodegeneration and autoimmunity. This project is focused on 1) how stresses such as cancer therapy or infection cause mitochondrial damage, and 2) understanding the biological processes that are triggered inside the cell as it tries to recover. It will give a much greater understanding of mitochondrial damage at the microscopic level, and has the potential to unlock new avenues of investigation into the causes of inflammatory and immune disorders.Read moreRead less