The Shape of Plants; Discovering factors that control morphology by organizing the cytoskeleton. Understanding how plants generate the huge diversity of shapes seen in nature is both a scientific challenge and a biotechnological opportunity. Microtubules dominate cell architecture, providing dynamic, yet rigid, frameworks for defining or changing growth polarity. We recently discovered and cloned MOR1, a gene that is essential for organizing microtubules and controlling morphogenesis. This place ....The Shape of Plants; Discovering factors that control morphology by organizing the cytoskeleton. Understanding how plants generate the huge diversity of shapes seen in nature is both a scientific challenge and a biotechnological opportunity. Microtubules dominate cell architecture, providing dynamic, yet rigid, frameworks for defining or changing growth polarity. We recently discovered and cloned MOR1, a gene that is essential for organizing microtubules and controlling morphogenesis. This places us in a strong position to resolve a long-standing mystery: how are microtubules organized? We intend to define MOR1's structural attributes, identify its interacting proteins and innovate an ambitious screen for additional genes that have related functions. This project should stimulate new ideas and applications.Read moreRead less
CesA (cellulose synthase) genes of Arabidopsis; all doing the same job or specialists cooperating to make the most abundant biopolymer. The biosphere makes more cellulose than any other polymer with fibre industries depending on its physical properties and atmospheric carbon dioxide levels depending on its stability as a carbon sink. Demonstrations that cellulose production needs CesA genes drove recent progress in elucidating the mechanism of synthesis. CesA proteins all look very similar but i ....CesA (cellulose synthase) genes of Arabidopsis; all doing the same job or specialists cooperating to make the most abundant biopolymer. The biosphere makes more cellulose than any other polymer with fibre industries depending on its physical properties and atmospheric carbon dioxide levels depending on its stability as a carbon sink. Demonstrations that cellulose production needs CesA genes drove recent progress in elucidating the mechanism of synthesis. CesA proteins all look very similar but if all do the same job, why do plants need so many and why do none seem redundant? We will make gene interchanges in transgenic plants, build chimeric genes and identify where each CesA protein operates. This will identify their individual and cooperative contributions to cellulose production.Read moreRead less
Predicting cell wall mechanics from structure in a materials engineering approach to plant growth. The project fosters a novel, interdisciplinary approach to understanding how the structure of plant cell walls determines their mechanical properties. Such understanding requires combining biological and engineering approaches and will illuminate how plants grow and produce cells and organs with particular shapes. This is scientifically important but is also important for industries depending on sp ....Predicting cell wall mechanics from structure in a materials engineering approach to plant growth. The project fosters a novel, interdisciplinary approach to understanding how the structure of plant cell walls determines their mechanical properties. Such understanding requires combining biological and engineering approaches and will illuminate how plants grow and produce cells and organs with particular shapes. This is scientifically important but is also important for industries depending on specialised cell shapes such as those of cotton and wood fibres. Our work will improve our understanding of how wall structure determines fibre and other cell shapes and give us tools which can be used to understand how final wall structure determines the fibre mechanics on which industrial users depend. Read moreRead less
Improving neuronal cell function with cell permeable copper complexes. Metal-based drugs offer an exciting new approach to treatment of neurodegeneration. However, little is known about how cells metabolise these drugs and this information is critical for further drug development. This project will determine how metal-based drugs are metabolised by neuronal cells and how this may result in therapeutic benefit.
Electrical properties of human dendrites. This project aims to determine the electrical properties of dendrites in human neurons. Dendrites are the primary site of synaptic input to neurons and their electrical properties play a key role in information processing in the brain. While we know much about the electrical properties of dendrites in other species, primarily rodents, little is known about the electrical properties of human dendrites. This project aims to address this gap in knowledge fo ....Electrical properties of human dendrites. This project aims to determine the electrical properties of dendrites in human neurons. Dendrites are the primary site of synaptic input to neurons and their electrical properties play a key role in information processing in the brain. While we know much about the electrical properties of dendrites in other species, primarily rodents, little is known about the electrical properties of human dendrites. This project aims to address this gap in knowledge for the first time. The results obtained will shed light on the mechanisms the brain uses to process information, and therefore will bring us a step closer to truly understanding ourselves.Read moreRead less
Novel cell wall genes ripe for the picking. This project aims to investigate the role of recently discovered plant cellulose synthase-like CslM genes and to define the polysaccharide product associated with them. Successful identification of the polysaccharide is highly likely to increase our fundamental understanding of how cell walls are made, how cells stick together or fall apart as well as facilitating the training of the next generation of cell wall biologists in challenging molecular and ....Novel cell wall genes ripe for the picking. This project aims to investigate the role of recently discovered plant cellulose synthase-like CslM genes and to define the polysaccharide product associated with them. Successful identification of the polysaccharide is highly likely to increase our fundamental understanding of how cell walls are made, how cells stick together or fall apart as well as facilitating the training of the next generation of cell wall biologists in challenging molecular and biochemical techniques. This new knowledge could increase our understanding of fruit ripening, and how it might be manipulated. This could have significant downstream commercial benefits if applied to breeding programs of economically important fruit such as grapes, tomatoes and strawberries.Read moreRead less
Role of the superior colliculus in sensory processing. The ability of an organism to attend to, and orient towards, stimuli in the environment is critical for survival. In the mammalian brain, the principal brain region performing this function is the superior colliculus. Despite its importance, little is known about the role the superior colliculus plays in sensory perception. This project addresses this issue by leveraging revolutionary new recording techniques to determine how the superior co ....Role of the superior colliculus in sensory processing. The ability of an organism to attend to, and orient towards, stimuli in the environment is critical for survival. In the mammalian brain, the principal brain region performing this function is the superior colliculus. Despite its importance, little is known about the role the superior colliculus plays in sensory perception. This project addresses this issue by leveraging revolutionary new recording techniques to determine how the superior colliculus codes sensory information and ultimately drives behaviour. The outcomes will be of immediate benefit to scientists studying sensory processing and perceptual decision making, and will help keep Australia at the forefront of brain-inspired engineering and the neuroscience-based knowledge economy.Read moreRead less
Coding of olfactory information in the piriform cortex. This project aims to understand how electrical activity in the primary olfactory (piriform) cortex enables mice to recognise and remember odours. By using optical recording techniques together with genetic tools, the project expects to generate new knowledge about how the mammalian brain builds internal representations of the external world. Specific outcomes of the project include new insights into the functional architecture of the pirifo ....Coding of olfactory information in the piriform cortex. This project aims to understand how electrical activity in the primary olfactory (piriform) cortex enables mice to recognise and remember odours. By using optical recording techniques together with genetic tools, the project expects to generate new knowledge about how the mammalian brain builds internal representations of the external world. Specific outcomes of the project include new insights into the functional architecture of the piriform cortex and fresh understanding of how olfactory information is encoded and stored in neural circuits. More broadly, the project aims to advance our understanding of how the brain works, with benefits for future improvements in artificial intelligence and brain-machine interfaces.Read moreRead less
Probing the four photosynthetic membrane protein complexes at work in situ in leaves. This proposal aims at sustainable improvements in plant productivity and photosynthetic adaptation in drastic Australian climates. In photosynthesis, membranes with the four multiprotein complexes use sunlight to make compounds that drive carbon assimilation. Instead of the usual dissection of photosynthetic membranes, this project will develop and refine the applicant's rapid, reliable, non-intrusive technique ....Probing the four photosynthetic membrane protein complexes at work in situ in leaves. This proposal aims at sustainable improvements in plant productivity and photosynthetic adaptation in drastic Australian climates. In photosynthesis, membranes with the four multiprotein complexes use sunlight to make compounds that drive carbon assimilation. Instead of the usual dissection of photosynthetic membranes, this project will develop and refine the applicant's rapid, reliable, non-intrusive techniques to probe the four membrane complexes at work in their native state in leaves. Two portable commercial instruments will potentially emerge from the techniques. This novel non-reductionist approach will identify key limitations to photosynthetic performance under stress, and insights into improvements for primary plant productivity.Read 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