Rational design of genetic circuits that respond to transient signals. Engineered genetic circuits with predictable and robust behaviour promise unprecedented environmental and economic benefits. Yet much work remains to be done before living devices can routinely be built from a standarised set of biological parts - the goal of synthetic biologists. By studying how natural genetic switch circuits respond to transient signals, this project aims to uncover a set of design rules which could be use ....Rational design of genetic circuits that respond to transient signals. Engineered genetic circuits with predictable and robust behaviour promise unprecedented environmental and economic benefits. Yet much work remains to be done before living devices can routinely be built from a standarised set of biological parts - the goal of synthetic biologists. By studying how natural genetic switch circuits respond to transient signals, this project aims to uncover a set of design rules which could be used to construct and control purpose-built genetic networks and pathways. The results of this project are expected to add to the molecular tookit available to synthetic biologists.Read moreRead less
Geobiological gold cycling: Golden opportunities for the minerals industry. This project aims to develop new geobiological tools for gold exploration and processing that are rooted in a fundamental understanding of geobiological gold cycling. Given the high production costs, the sustainability of the Australian gold industry relies strongly on innovation. Yet, there are many gaps in our fundamental understanding of bio (geo)chemical gold dispersion and precipitation. This project aims to fill th ....Geobiological gold cycling: Golden opportunities for the minerals industry. This project aims to develop new geobiological tools for gold exploration and processing that are rooted in a fundamental understanding of geobiological gold cycling. Given the high production costs, the sustainability of the Australian gold industry relies strongly on innovation. Yet, there are many gaps in our fundamental understanding of bio (geo)chemical gold dispersion and precipitation. This project aims to fill these gaps by linking biochemical pathways of gold mobilisation and resistance in bacteria to its transport and biomineralisation. This would enable the development of protein-based biosensors, bioindicators and nanovectors. These would support the development of exploration and bioaccumulation technologies that allow more economically sustainable and environmentally viable mining practices, such as enhancing production from subeconomic ore.Read moreRead less
Defining New Building Blocks for the Construction of Artificial Genetic Circuits. By characterising the components of a natural genetic switch, we will make available a set of well defined genetic building blocks for construction of rationally designed biological circuits. The ability to build such circuits would have significant economic benefit in areas such as metabolic engineering, to improve the efficiency of production of natural compounds from micro-organisms, and in biomedicine, for the ....Defining New Building Blocks for the Construction of Artificial Genetic Circuits. By characterising the components of a natural genetic switch, we will make available a set of well defined genetic building blocks for construction of rationally designed biological circuits. The ability to build such circuits would have significant economic benefit in areas such as metabolic engineering, to improve the efficiency of production of natural compounds from micro-organisms, and in biomedicine, for the controlled release of therapeutic compounds. The involvement of Honours and Ph.D students in this project will expose the next generation of Australian scientists to this emerging discipline. International collaboration leading to publications in high impact scientific journals will enhance Australia's scientific reputation.Read moreRead less
Improved management of coastal plankton systems by ancient DNA technology. This project aims to assemble comprehensive long term Australian plankton records spanning 50 to 1000 years, by applying ancient DNA technology to dated sediment depth cores. Long-term data for Australian coastal and estuarine waters are sparse, so cannot be used for management of fisheries, tourism or urban development. Long-term records are essential to understand how disruptive algal and jellyfish blooms, introduced sp ....Improved management of coastal plankton systems by ancient DNA technology. This project aims to assemble comprehensive long term Australian plankton records spanning 50 to 1000 years, by applying ancient DNA technology to dated sediment depth cores. Long-term data for Australian coastal and estuarine waters are sparse, so cannot be used for management of fisheries, tourism or urban development. Long-term records are essential to understand how disruptive algal and jellyfish blooms, introduced species and increased human use of coastal resources affect dynamic plankton ecosystems. This project’s findings are expected to explore cyclical patterns, define range expansions and understand and manage how dynamic coastal ecosystems respond to multistressor anthropogenic change. Findings will improve understanding of how dynamic marine environments retain their biodiversity values and critical ecological functions.Read moreRead less
The rational design and construction of new genetic circuits for applications in synthetic biology. By designing, building and testing new gene control modules, this project will gain an understanding of the design principles required for the construction of biological circuits with predictable and controllable behaviour. The ability to build such circuits will have significant economic benefit in areas such as metabolic engineering and biomedicine.
Synthetic biology tools for integration into bacterial chromosomes. The aim of the project is to develop a set of versatile chromosomal integration tools for bacteria, enabling rapid development of novel biological outputs. A major goal in the emerging discipline of synthetic biology is to apply engineering principles to the design and construction of new biological entities such as proteins, genetic circuits and cells. Custom-designed genetic circuits, integrated in an appropriate host genome, ....Synthetic biology tools for integration into bacterial chromosomes. The aim of the project is to develop a set of versatile chromosomal integration tools for bacteria, enabling rapid development of novel biological outputs. A major goal in the emerging discipline of synthetic biology is to apply engineering principles to the design and construction of new biological entities such as proteins, genetic circuits and cells. Custom-designed genetic circuits, integrated in an appropriate host genome, hold enormous economic potential for applications ranging from biomedicine to biofuel production. This project aims to help synthetic biologists to embed made-to-order circuits in appropriate host cells to act as living factories, potentially replacing industrial processes which are currently environmentally and economically costly.Read moreRead less
Competition or cooperation between marine biofilm bacteria recycling POM? Biofilms develop on any wetted surface by adhesion and subsequent growth of microorganisms. Recycling the energy, carbon and nitrogen contained in oceanic particulate organic matter (POM) is a global process essential for life on Earth. Ocean POM is degraded by its biofilm consortia, particularly bacteria secreting digestive enzymes. It is not known whether biofilm bacteria compete or cooperate in recycling POM. This proj ....Competition or cooperation between marine biofilm bacteria recycling POM? Biofilms develop on any wetted surface by adhesion and subsequent growth of microorganisms. Recycling the energy, carbon and nitrogen contained in oceanic particulate organic matter (POM) is a global process essential for life on Earth. Ocean POM is degraded by its biofilm consortia, particularly bacteria secreting digestive enzymes. It is not known whether biofilm bacteria compete or cooperate in recycling POM. This project combines microscopy image analysis, flow cytometry and molecular genetics to determine bacterial interactions quantitatively in mixed-species biofilms on natural POM. Results will increase knowledge of bacterial community functioning and biofilm recycling of POM in marine environments.Read moreRead less