Genetic control of floral architecture. Different flowers have different designs, and so the design must ultimately be controlled by genes. We have identified a gene that keeps sepals separate, and promotes the initiation of petals. We think it does this by a novel growth suppression mechanism, and will now deduce its molecular and cellular basis. This will help maintain Australia's strength in fundamental plant biology. Also, by understanding how sepals and petals arise in a model laboratory sp ....Genetic control of floral architecture. Different flowers have different designs, and so the design must ultimately be controlled by genes. We have identified a gene that keeps sepals separate, and promotes the initiation of petals. We think it does this by a novel growth suppression mechanism, and will now deduce its molecular and cellular basis. This will help maintain Australia's strength in fundamental plant biology. Also, by understanding how sepals and petals arise in a model laboratory species, we can generalise for many species, including economic plants. Thus it may be possible to make designer crops through targeted genetic changes to their floral structure.Read moreRead less
Control of plant organ development by the PETAL LOSS gene of Arabidopsis. We have discovered a new gene in the model laboratory plant Arabidopsis thaliana that is involved in sepal and petal development. It encodes a transcription factor that apparently acts by repressing growth in the inter-sepal zone of flowers where petals arise. We now aim to determine how this growth suppression occurs, and whether it extends to leaves where the gene is also expressed. Control of the initiation and sculptur ....Control of plant organ development by the PETAL LOSS gene of Arabidopsis. We have discovered a new gene in the model laboratory plant Arabidopsis thaliana that is involved in sepal and petal development. It encodes a transcription factor that apparently acts by repressing growth in the inter-sepal zone of flowers where petals arise. We now aim to determine how this growth suppression occurs, and whether it extends to leaves where the gene is also expressed. Control of the initiation and sculpturing of plant organs by site-specific inhibition of growth is a newly discovered mechanism that may be useful in manipulating plant architecture.Read moreRead less
Understanding how auxin and dorsoventral patterning are coordinated in plants. This study will help reveal for the first time how the outgrowth of leaves, flowers and floral organs is coordinated by tissue patterning genes and the plant growth hormone auxin. All plants grow in this way, and our findings, made using a model laboratory plant, will be applicable to crop species as well. Thus we will both expand our core knowledge of how multicellular organisms are constructed, and also generate pos ....Understanding how auxin and dorsoventral patterning are coordinated in plants. This study will help reveal for the first time how the outgrowth of leaves, flowers and floral organs is coordinated by tissue patterning genes and the plant growth hormone auxin. All plants grow in this way, and our findings, made using a model laboratory plant, will be applicable to crop species as well. Thus we will both expand our core knowledge of how multicellular organisms are constructed, and also generate possibilities for modifying the patterns of leaf and flower development in agricultural and horticultural species. Crops with larger leaves, or flowers of different structure, may result.Read moreRead less
Adaptive Evolution of BRCA1 in Ancestral Mammals. This project investigates adaptive evolution of BRCA1 in the early radiation of mammals. We will test the hypothesis that the evolution of mammary glands and X chromosome inactivation has resulted in modification of the BRCA1 protein sequence as it aquired new roles in these processes. We will also investigate the importance of these changes inducing compensatory changes in other parts of the protein.
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.
Role of mRNA polyadenylation control in gene expression. Several benefits would come from a more complete understanding of the function of the messenger RNA poly(A) tail. It is frequently targeted by mechanisms that control cellular protein synthesis. This is most evident in developmental biology, where tail length control regulates maternal mRNA expression. Our previous work suggests that it has much wider importance for cellular function than previously thought and thus its study will produce ....Role of mRNA polyadenylation control in gene expression. Several benefits would come from a more complete understanding of the function of the messenger RNA poly(A) tail. It is frequently targeted by mechanisms that control cellular protein synthesis. This is most evident in developmental biology, where tail length control regulates maternal mRNA expression. Our previous work suggests that it has much wider importance for cellular function than previously thought and thus its study will produce knowledge of broad relevance to modern life sciences and its applications in medicine and biotechnology. Finally, a better understanding of yeast cellular biology is of benefit to the food and biotechnology sector of industry.Read moreRead less
New Polymers for Cellulose-based Bioplastics. We will design new cellulose derivatives by combining carefully engineered synthetic polymers to cellulose. We will explore the fundamental science underpinning the manufacture of these bioplastics, and apply the concept to the design of two new materials, with (super)hydrophobic and antibacterial properties. These materials have the potential to replace synthetic plastics, which comprise one of the major outputs of the chemical industry worldwide. P ....New Polymers for Cellulose-based Bioplastics. We will design new cellulose derivatives by combining carefully engineered synthetic polymers to cellulose. We will explore the fundamental science underpinning the manufacture of these bioplastics, and apply the concept to the design of two new materials, with (super)hydrophobic and antibacterial properties. These materials have the potential to replace synthetic plastics, which comprise one of the major outputs of the chemical industry worldwide. Plastic is present everywhere in human life, but its manufacture and disposal have a strong negative impact on the environment; the new materials manufactured in this project are viable alternatives to plastics, and are sustainable from a production and disposal point of view.Read moreRead less
Tibet's rivers in the Anthropocene: history and present trajectories. This project aims to produce a multifaceted history of the eastern Tibetan Plateau's rivers, focusing on the increasing human impacts during the Anthropocene. It will combine data from archival, cultural and oral sources in multiple languages with the results of scientific studies of river flow, water quality, and sediment, ice, and tree-rings analysis. The project will produce both historical narratives and graphic representa ....Tibet's rivers in the Anthropocene: history and present trajectories. This project aims to produce a multifaceted history of the eastern Tibetan Plateau's rivers, focusing on the increasing human impacts during the Anthropocene. It will combine data from archival, cultural and oral sources in multiple languages with the results of scientific studies of river flow, water quality, and sediment, ice, and tree-rings analysis. The project will produce both historical narratives and graphic representations that model past land and water usage. The results of the project will underpin environmental policy for this hydrologically and ecologically crucial region, including the development of a paradigm of care based on the region's indigenous cultural resources.Read moreRead less
How ribosomal protein loss affects cell fate. This project aims to challenge the dogma that the ribosome behaves only as a ‘‘house-keeper’’. Ribosomal protein (RP) mutations should, and often do, result in reduced cell growth and stunted animal development. Depletion of RPs in Drosophila blood cells impair stem cells and cause massive tissue overgrowth. This suggests RPs are involved in cell fate determination, which this project will research using genetic models. As ribosomal function is funda ....How ribosomal protein loss affects cell fate. This project aims to challenge the dogma that the ribosome behaves only as a ‘‘house-keeper’’. Ribosomal protein (RP) mutations should, and often do, result in reduced cell growth and stunted animal development. Depletion of RPs in Drosophila blood cells impair stem cells and cause massive tissue overgrowth. This suggests RPs are involved in cell fate determination, which this project will research using genetic models. As ribosomal function is fundamental to the development of all living organisms, this work could have wide implications for understanding all biology – from microbes, insects and plants to humans.Read moreRead less
Understanding the role of trauma in alcohol and other drug-related problems. This project aims to investigate the relationship between trauma and alcohol and other drug (AOD)-related problems. Using a robust set of qualitative and ethnographic methods, the project expects to advance international knowledge on how experiences of trauma influence AOD consumption, and the diverse factors that shape variation in experience and outcomes for individuals. Expected outcomes include targeted recommendati ....Understanding the role of trauma in alcohol and other drug-related problems. This project aims to investigate the relationship between trauma and alcohol and other drug (AOD)-related problems. Using a robust set of qualitative and ethnographic methods, the project expects to advance international knowledge on how experiences of trauma influence AOD consumption, and the diverse factors that shape variation in experience and outcomes for individuals. Expected outcomes include targeted recommendations to improve AOD responses, policy and trauma-informed AOD care, and increased capacity of the Australian health workforce to respond to trauma and AOD-related problems. This should provide significant benefit by reducing the harms, and economic and social costs associated with AOD consumption.Read moreRead less