Understanding the evolution of the alternation of generations in the land plant life cycle. This project will investigate the genetic basis and evolution of the land plant life cycle, in which both haploid and diploid phases consist of complex multicellular bodies. The project's findings, which will be made using two model laboratory plants, will be applicable to all plants and will help understand important processes such as pollen and seed production.
Role of alanine aminotransferase in improved nitrogen use efficiency (NUE) in cereals. The use of nitrogen-based fertilisers by crop plants is poor where efficiencies (nitrogen taken up to that applied) is often less than 40%. Nitrogen not used is often lost to the environment through leaching and or volatilisation. Improving nitrogen use efficiency (NUE) in agriculture will decrease overall nitrogen fertiliser use and minimise its environmental footprint. This project will characterise a nov ....Role of alanine aminotransferase in improved nitrogen use efficiency (NUE) in cereals. The use of nitrogen-based fertilisers by crop plants is poor where efficiencies (nitrogen taken up to that applied) is often less than 40%. Nitrogen not used is often lost to the environment through leaching and or volatilisation. Improving nitrogen use efficiency (NUE) in agriculture will decrease overall nitrogen fertiliser use and minimise its environmental footprint. This project will characterise a novel NUE technology that when transferred to plants significantly improves NUE. We will define the phenotype at the molecular, biochemical and physiological levels to maximise its adoption to other agricultural crops such as wheat, barley and maize.Read moreRead less
A Longitudinal Study Of Psychopathology In People With Intellectual Disability
Funder
National Health and Medical Research Council
Funding Amount
$999,803.00
Summary
This project will further develop the research opportunities of an internationally unique 15 year follow up study of the mental health of young Australians with ID. We have shown that this group has 2-3 times the risk of suffering serious emotional and behavioural problems that are an added heavy burden on the individual, their family and carers and the community. These problems often are not recognised but are as common as schizophrenia in the community. The study will continue to use a combina ....This project will further develop the research opportunities of an internationally unique 15 year follow up study of the mental health of young Australians with ID. We have shown that this group has 2-3 times the risk of suffering serious emotional and behavioural problems that are an added heavy burden on the individual, their family and carers and the community. These problems often are not recognised but are as common as schizophrenia in the community. The study will continue to use a combination of questionnaire survey and in depth interviews of the young adults and their families or carers to track the course of their mental health. The study commenced in 1990 with nearly 1000 young people with ID aged 4-18 years and their progress has been reviewed every 2-3 years in over 75% of the original group. During the next 5 years we plan to follow their mental health during the critical stage of young adult life. During this time there is the greatest risk of mental illnesses such as depression and schizophrenia and the stresses of adjusting to new daily occupations, independent living or residential care and social contact away from the family. We will be able to study the specific emotional and behavioural problems faced by young adults with the main known causes of ID such as Down, Fragile X, Prader Willi and William Syndromes, as well as those who have autism. The great benefit of a long term follow up study is that it allows us to study the links between earlier family environmental, psychological and biological factors and subsequent mental health problems. We can also demonstrate the impact that mental illness in a young person with ID has on the family and parental mental health. The findings have implications for better diagnosis, improved care and management, early intervention and prevention of these common severe and under recognized mental health problems in this disadvantaged group of young Australians and their families and carers.Read moreRead less
Solving the Mysteries of Monotreme Chromosomes. The peculiar chromosomes of Australia's platypus and echidna have been debated for more than 30 years. Classical cytology cannot resolve the puzzling sex chromosome system, or to sort out the bizarre translocation chain (unique in vertebrates) and deduce how it segregates to make viable zyotes. I will microdissect individual chromosomes, and use DNA ?paints? from them (and gene probes isolated by them) to detect homologies between unpaired chromoso ....Solving the Mysteries of Monotreme Chromosomes. The peculiar chromosomes of Australia's platypus and echidna have been debated for more than 30 years. Classical cytology cannot resolve the puzzling sex chromosome system, or to sort out the bizarre translocation chain (unique in vertebrates) and deduce how it segregates to make viable zyotes. I will microdissect individual chromosomes, and use DNA ?paints? from them (and gene probes isolated by them) to detect homologies between unpaired chromosomes at mitosis, meiosis and in sperm. I will use immunohistochemistry to clarify chromosome pairing and recombination at meiosis. This will answer some important general questions about chromosome behaviour and sex chromosome evolution.
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The role of online social networks in successful ageing: benefitting from 'who you know' at older ages. The project will increase understanding of how online social networking contributes to successful ageing through partnering, economic and voluntary activity, family and social connectedness. The findings will inform policy recommendations, social interventions and education programs designed to enhance 'ageing well, ageing productively'. These are expected to benefit the health and well-being ....The role of online social networks in successful ageing: benefitting from 'who you know' at older ages. The project will increase understanding of how online social networking contributes to successful ageing through partnering, economic and voluntary activity, family and social connectedness. The findings will inform policy recommendations, social interventions and education programs designed to enhance 'ageing well, ageing productively'. These are expected to benefit the health and well-being of older Australians, with economic benefits of increased contributions to society and fewer demands on services. Social and economic benefits are also expected from insights into reducing the technological and psychological barriers that prevent older people from benefiting from the Internet and online social networking.Read moreRead less
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
Normative study of a checklist of emotional and behavioural disturbance in adults with intellectual disability. People with intellectual disability (ID) are three times more likely to suffer mental illness than the general community, making this a bigger problem than schizophrenia. They are a great burden to their carers and cost to the community but their mental health problems remain largely untreated. This study aims to conduct the largest and most comprehensive survey of the mental health ....Normative study of a checklist of emotional and behavioural disturbance in adults with intellectual disability. People with intellectual disability (ID) are three times more likely to suffer mental illness than the general community, making this a bigger problem than schizophrenia. They are a great burden to their carers and cost to the community but their mental health problems remain largely untreated. This study aims to conduct the largest and most comprehensive survey of the mental health of adults with ID that has been undertaken internationally to date. The population will cover the age span of late adolescence (16 years) through the transition to adult life then through to the elderly. The research will establish the prevalence and nature of mental illness and potential risk factors in a large representative population of adults with ID.Read moreRead less
Social relations and social engagement in older adulthood: implications for health, well being and cognition. This project will examine the nature of changes in peoples social networks that occur with age and the effects of these changes on health and well being in later life. The project will use information collected as part of several ongoing Australian studies of ageing and will have implications for social policy.