Discovering mechanisms of primary embryonic tissue migration through live cell imaging and novel genetic approaches. The studies proposed here will provide concepts and knowledge about the molecular basis of cell migration that will impact on diverse aspects of human health, such as the causes and nature of tumour metastasis and our understanding of the developmental basis of birth defects. In addition, understanding cell migration mechanisms will allow us to better predict or control the behav ....Discovering mechanisms of primary embryonic tissue migration through live cell imaging and novel genetic approaches. The studies proposed here will provide concepts and knowledge about the molecular basis of cell migration that will impact on diverse aspects of human health, such as the causes and nature of tumour metastasis and our understanding of the developmental basis of birth defects. In addition, understanding cell migration mechanisms will allow us to better predict or control the behaviour of therapeutic stem cells introduced into the body.Read moreRead less
The role of gamma glutamyl cyclotransferase in glutathione homeostasis. The aim of this study is to understand the structure and function of gamma-glutamyl cyclotransferase (GGCT) and its role in glutathione synthesis and turnover. Glutathione is essential for life and serves multiple biological functions protecting against oxidative stress, and aiding in the detoxification and excretion of foreign chemicals. This study will explore a new approach to changing intracellular glutathione concentra ....The role of gamma glutamyl cyclotransferase in glutathione homeostasis. The aim of this study is to understand the structure and function of gamma-glutamyl cyclotransferase (GGCT) and its role in glutathione synthesis and turnover. Glutathione is essential for life and serves multiple biological functions protecting against oxidative stress, and aiding in the detoxification and excretion of foreign chemicals. This study will explore a new approach to changing intracellular glutathione concentrations that has wide applications in the treatment of inherited enzyme deficiencies, cancer and the development of herbicide resistant crop plants. The study will also contribute to the training of scientists for the future development of the Australian biotechnology industryRead moreRead less
What is safe about “safe migration”? Migration management in the Mekong. The project seeks to examine the claims that new policy models make about assuring the safety of labour migrants. What is safe about safe migration? Regulation of labour migrants is a central policy concern in Asia, Australia and elsewhere. In an attempt to address anti-trafficking, several donors, United Nations agencies, nongovernment organisations and Governments have launched ‘safe migration’ programs which, rather than ....What is safe about “safe migration”? Migration management in the Mekong. The project seeks to examine the claims that new policy models make about assuring the safety of labour migrants. What is safe about safe migration? Regulation of labour migrants is a central policy concern in Asia, Australia and elsewhere. In an attempt to address anti-trafficking, several donors, United Nations agencies, nongovernment organisations and Governments have launched ‘safe migration’ programs which, rather than focusing solely on the legal status of migrants, seek to develop mechanisms (eg hotline numbers) to assure their safety. This research examines the claims of safety that this shift from anti-trafficking to safe migration has engendered, and whether and in what terms labour migrants might be consequently safer’. Project results may inform aid programs and government policies.Read moreRead less
Cellular uptake of glutathione transferases and their development as cell transfection agents. The function and survival of all cells requires the importation of a vast array of biochemical agents. In order for this to occur, these agents must be transported across the cell membrane wall. We are investigating a novel delivery system involving the enzyme glutathione transferase (GST). By investigating how GSTs cross membranes, we will be able to develop a new technology for the delivery of bio ....Cellular uptake of glutathione transferases and their development as cell transfection agents. The function and survival of all cells requires the importation of a vast array of biochemical agents. In order for this to occur, these agents must be transported across the cell membrane wall. We are investigating a novel delivery system involving the enzyme glutathione transferase (GST). By investigating how GSTs cross membranes, we will be able to develop a new technology for the delivery of biologically active molecules into cells. This exciting new technique will have applications in research and in the delivery of therapeutic drugs for the treatment of a range of diseases. Read moreRead less
Taming the intruders: the domestication of Tigger transposable elements in mammals. It has become apparent that most of the DNA that makes us what we are is actually comprised of the remnants of invading parasitic DNA acquired over time. A continual battle exists between host which tries to silence or remove this DNA, and the parasite that tries to multiply and spread. We are currently investigating an intriguing aspect of this process that involves host genomes 'domesticating' parasitic DNA to ....Taming the intruders: the domestication of Tigger transposable elements in mammals. It has become apparent that most of the DNA that makes us what we are is actually comprised of the remnants of invading parasitic DNA acquired over time. A continual battle exists between host which tries to silence or remove this DNA, and the parasite that tries to multiply and spread. We are currently investigating an intriguing aspect of this process that involves host genomes 'domesticating' parasitic DNA to provide novel functions, thereby facilitating the evolution of specific characteristics within species.Read moreRead less
Proteome Analysis of Plant Response Pathways to Microbial Signals in the Model Legume, Medicago truncatula. This project will investigate plant responses to soil microbes in the model legume, Medicago truncatula, to provide fundamental information needed to design crops with improved abilities to interact beneficially with soil microbes. Plant development and performance are significantly influenced by soil microbes, but it is largely unknown how the information contained in microbial signalling ....Proteome Analysis of Plant Response Pathways to Microbial Signals in the Model Legume, Medicago truncatula. This project will investigate plant responses to soil microbes in the model legume, Medicago truncatula, to provide fundamental information needed to design crops with improved abilities to interact beneficially with soil microbes. Plant development and performance are significantly influenced by soil microbes, but it is largely unknown how the information contained in microbial signalling molecules is relayed to plants. Proteome analysis and immunocytochemistry will be combined to identify and localise differentially expressed proteins in roots treated with specific microbial signal molecules. Annotated Proteome databases will be generated to strengthen and complement an international project on M. truncatula genome analysis.Read moreRead less
Evolution in microsatellite DNA: testing models of mutation in an Australian marsupial. We aim to compare mutational events between microsatellite loci that vary in their exposure to recombination. We are able to do this because of a remarkable finding that Australian brushtail possums have multiple occurrences of a single microsatellite repeat element within the Y-chromosome and among autosomal loci. We will compare variation between the Y-linked and non Y-linked loci within and among individu ....Evolution in microsatellite DNA: testing models of mutation in an Australian marsupial. We aim to compare mutational events between microsatellite loci that vary in their exposure to recombination. We are able to do this because of a remarkable finding that Australian brushtail possums have multiple occurrences of a single microsatellite repeat element within the Y-chromosome and among autosomal loci. We will compare variation between the Y-linked and non Y-linked loci within and among individual possums and use those comparisons to distinguish between recombinant and non- recombinant mutational mechanisms. These data will provide new insights into the mutational mechanisms that drive variation in these most important molecular markers.Read moreRead less
Sex in Dragons: Evolution of sex determination in reptiles. Australia is a leader in sex determination research with major advances in our understanding attributable to Australian researchers and laboratories. This project will contribute to our prestige as a nation capable of contributing cutting edge research directions and stimulating ideas in human sex determination. Moreover, many reptiles have temperature-dependent sex determination, and so would appear appallingly vulnerable to climate ch ....Sex in Dragons: Evolution of sex determination in reptiles. Australia is a leader in sex determination research with major advances in our understanding attributable to Australian researchers and laboratories. This project will contribute to our prestige as a nation capable of contributing cutting edge research directions and stimulating ideas in human sex determination. Moreover, many reptiles have temperature-dependent sex determination, and so would appear appallingly vulnerable to climate change. Our project, will bring improved understanding of sex determination in reptiles, identify evolutionary responses of reptiles to climate change, and assist by informing society on how we might manage this issue into the future conservation of these unique Australian reptiles. Read moreRead less
Sex in Dragons: The molecular basis of genetic and environmental sex determination. How animals determine sex has been debated over decades. Particularly mysterious is that sex is determined by genes in some animals, and by temperature in others. We will study closely related dragon lizards which determine sex via genes (GSD) or temperature (TSD). We will use novel genetic, molecular and cytological aproaches to discover genes and chromosomes that control sex determination in the GSD species, an ....Sex in Dragons: The molecular basis of genetic and environmental sex determination. How animals determine sex has been debated over decades. Particularly mysterious is that sex is determined by genes in some animals, and by temperature in others. We will study closely related dragon lizards which determine sex via genes (GSD) or temperature (TSD). We will use novel genetic, molecular and cytological aproaches to discover genes and chromosomes that control sex determination in the GSD species, and explore their homologues in the TSD species. We expect this study will provide new insights to mechanisms of sex determination in all vertebrates, and demonstrate how genes and the environment interact to control the process.Read moreRead less
Public Policy and Immigrant Settlement in Australia. The proposed research will assess the relative importance of labour market conditions, income-support policy, and immigrant selection criteria in facilitating the settlement of recent immigrants in Australia. The project will be the first major academic study to make use of the complete data from the Longitudinal Survey of Immigrants to Australia to compare two cohorts of recent immigrants who arrived under different policy settings and econom ....Public Policy and Immigrant Settlement in Australia. The proposed research will assess the relative importance of labour market conditions, income-support policy, and immigrant selection criteria in facilitating the settlement of recent immigrants in Australia. The project will be the first major academic study to make use of the complete data from the Longitudinal Survey of Immigrants to Australia to compare two cohorts of recent immigrants who arrived under different policy settings and economic conditions and whose initial settlement outcomes varied dramatically. The results will advance our understanding of how immigrants adjust to Australia and will be useful for future policy development.
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