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Understanding the biological functions of the karrikin-responsive signaling system of plants in growth, development and responses to the environment. A new signalling system in plants, related to that of strigolactone hormones but evolutionarily more ancient and functionally distinct, has been discovered. It is defined by the Karrkin-Insensitive-2 (KAI2) protein discovered by its ability to confer responsiveness to karrikins from bushfires. The KAI2 system influences seed germination, and develo ....Understanding the biological functions of the karrikin-responsive signaling system of plants in growth, development and responses to the environment. A new signalling system in plants, related to that of strigolactone hormones but evolutionarily more ancient and functionally distinct, has been discovered. It is defined by the Karrkin-Insensitive-2 (KAI2) protein discovered by its ability to confer responsiveness to karrikins from bushfires. The KAI2 system influences seed germination, and development of seedlings, leaves and potentially roots. This project will use KAI2 mutants and transgenic plants to define the biological functions of KAI2 signalling, and its interactions with other signalling systems. New genes central to KAI2 signalling and responses will be identified for functional analysis. The research will reveal the significance of this new signalling system in plant biology. Read moreRead less
Genetic and Hormonal Regulation of Plant Growth. Leguminous plants make a substantial contribution to the Australian economy. To ensure future growth, we need to know more about how legume development is regulated. Genetic mutants, typically affecting the growth-promoting gibberellin plant hormones, played a key role in the green revolution, which transformed agriculture world-wide. Recent results show that gibberellin acts in concert with another hormone, auxin. We will generate new auxin-relat ....Genetic and Hormonal Regulation of Plant Growth. Leguminous plants make a substantial contribution to the Australian economy. To ensure future growth, we need to know more about how legume development is regulated. Genetic mutants, typically affecting the growth-promoting gibberellin plant hormones, played a key role in the green revolution, which transformed agriculture world-wide. Recent results show that gibberellin acts in concert with another hormone, auxin. We will generate new auxin-related mutants that will help us to understand how auxin and auxin-mediated interactions affect crop architecture and performance. Further benefit will accrue from training of students in state-of-the-art techniques, and the generation of new germplasm for use by other researchers and plant breeders. Read moreRead less
Special Research Initiatives - Grant ID: SR0354740
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
CaGaWaLo: regulation of carbon gain and water loss by woody vegetation. Trees and shrubs are widely perceived as central to solving problems of national and international significance. Seed funding is sought to facilitate establishment of a research network focused on their ability to sequester carbon and transmit water to the atmosphere. The proposed network is broadly based in plant physiology and ecology and contains a strong cross-section of leading international expertise in relevant sub- ....CaGaWaLo: regulation of carbon gain and water loss by woody vegetation. Trees and shrubs are widely perceived as central to solving problems of national and international significance. Seed funding is sought to facilitate establishment of a research network focused on their ability to sequester carbon and transmit water to the atmosphere. The proposed network is broadly based in plant physiology and ecology and contains a strong cross-section of leading international expertise in relevant sub-disciplines. By leveraging the huge pool of international expertise and focusing on a range of scales (from molecular to biosphere scales), this network will yield new ideas and approaches that will produce outputs and outcomes of national significance.Read moreRead less
Predictive ichthyotoxicity, diagnostics and risk assessment of harmful algal blooms impacting on the Tasmanian salmonid aquaculture industry. We aim to define through a combination of laboratory culture exposure and live cage bioassay experiments the minimum cell concentrations of harmful microalgae (Karenia, Heterosigma, Noctiluca, Chaetoceros) that can cause salmonid mortalities or are a factor in compromising fish health or reducing fish farm productivity. The diagnostic pathology and fish be ....Predictive ichthyotoxicity, diagnostics and risk assessment of harmful algal blooms impacting on the Tasmanian salmonid aquaculture industry. We aim to define through a combination of laboratory culture exposure and live cage bioassay experiments the minimum cell concentrations of harmful microalgae (Karenia, Heterosigma, Noctiluca, Chaetoceros) that can cause salmonid mortalities or are a factor in compromising fish health or reducing fish farm productivity. The diagnostic pathology and fish behaviour caused by different harmful algal taxa will be carefully documented to assist fish health inspectors in the routine diagnosis of algal toxicosis ot compromised fish health. Ultimately, this information will be integrated into a risk assessment strategy for the Tasmanian salmonid industry to manage fish stocks during times of harmful algal bloom events.Read moreRead less
Unique plant hormone responses: the key to nitrogen-fixing nodules. This project aims to build a model of the signals that regulate root nodule formation, unique root organs formed by some plants that host nitrogen-fixing bacteria. Nitrogen is often limited in the soil and agriculture relies on nitrogen fertiliser. Sustainable sources of plant nutrients are required to ensure food security and minimise the environmental impact of intensive farming. This project will provide fundamental informati ....Unique plant hormone responses: the key to nitrogen-fixing nodules. This project aims to build a model of the signals that regulate root nodule formation, unique root organs formed by some plants that host nitrogen-fixing bacteria. Nitrogen is often limited in the soil and agriculture relies on nitrogen fertiliser. Sustainable sources of plant nutrients are required to ensure food security and minimise the environmental impact of intensive farming. This project will provide fundamental information on why some species can form nitrogen-fixing nodules by examining the role of plant hormones. This will build the knowledge base required to potentially expand this symbiosis into non-legumes, harnessing the huge advantage nodule forming species have in staple crops.Read moreRead less
Genetic control of flowering in legumes. Flowering in plants is strongly regulated by environmental factors, with important consequences for their natural distribution and use in agriculture. This project will isolate genes, characterize genetic diversity and dissect molecular mechanisms that regulate flowering, contributing to fundamental biology, crop improvement and research training.
Genetic regulation of photomorphogenesis in legume crops to meet changing agronomic needs. Legumes are widely grown as forage and grain crops and make a substantial contribution to the Australian economy. Light is an important determinant of plant architecture and productivity and we need to know more about how development is regulated by light in this important plant group. The natural light environment faced by plants is complex and varies with crop density, season and time of day. Understandi ....Genetic regulation of photomorphogenesis in legume crops to meet changing agronomic needs. Legumes are widely grown as forage and grain crops and make a substantial contribution to the Australian economy. Light is an important determinant of plant architecture and productivity and we need to know more about how development is regulated by light in this important plant group. The natural light environment faced by plants is complex and varies with crop density, season and time of day. Understanding the interaction of photoreceptors and plant hormones in the control of growth is vital for manipulating crops to meet changing agronomic requirements. Training of students in state-of-the art techniques and the generation of new germplasm for use by other researchers and plant breeders will be other significant outcomes of the project.Read moreRead less
Genetic control of flowering and photoperiodism in pea. The timing of flowering in many plant species is strongly influenced by photoperiod. The mechanisms by which photoperiod controls flowering will be investigated using the garden pea as a model system. New pea mutants impairing photoperiod responses will be identified and characterized, and photoperiod response genes from Arabidopsis will be mapped and used for expression studies in pea. This work will provide important new information about ....Genetic control of flowering and photoperiodism in pea. The timing of flowering in many plant species is strongly influenced by photoperiod. The mechanisms by which photoperiod controls flowering will be investigated using the garden pea as a model system. New pea mutants impairing photoperiod responses will be identified and characterized, and photoperiod response genes from Arabidopsis will be mapped and used for expression studies in pea. This work will provide important new information about the physiological roles of the Arabidopsis genes and the molecular identity of the pea genes. It will add to our knowledge of how flowering is regulated, and this will have important agronomic applications.Read moreRead less
Special Research Initiatives - Grant ID: SR0354787
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Research Network for Biotechnological and Environmental Applications of Microalgae (BEAM). The network will facilitate inderdisciplinary and collaborative research into the limitations on microalgal growth leading to the development of new, commercial-scale microalgae culture systems, the production of fine chemicals, bioactive compounds and renewable fuels (hydrogen), as well as environmental applications such as monitoring the physiological state of phytoplankton in the environment, CO2 biorem ....Research Network for Biotechnological and Environmental Applications of Microalgae (BEAM). The network will facilitate inderdisciplinary and collaborative research into the limitations on microalgal growth leading to the development of new, commercial-scale microalgae culture systems, the production of fine chemicals, bioactive compounds and renewable fuels (hydrogen), as well as environmental applications such as monitoring the physiological state of phytoplankton in the environment, CO2 bioremediation and algal/bacterial systems for the bioremediation of contaminated soils. This will be achieved by applying research on photosynthetic light utilisation efficiency and carbon fixation, chlorophyll fluorescence, biochemistry of secondary metabolites, molecular biology and photobioreactor design and engineering, informed by an understanding of the ecology of these algae.Read moreRead less
New genetic mechanisms linking flowering, growth habit and yield in legumes. This project aims to investigate the genetic control of flowering and flowering-related traits in legumes, an important group of crop plants. The regulation of flowering by environmental factors has a major influence on plant yield and is important for adaptation in natural and agricultural settings. However, it is poorly understood at the molecular level. This project aims to use induced genetic variation and transcrip ....New genetic mechanisms linking flowering, growth habit and yield in legumes. This project aims to investigate the genetic control of flowering and flowering-related traits in legumes, an important group of crop plants. The regulation of flowering by environmental factors has a major influence on plant yield and is important for adaptation in natural and agricultural settings. However, it is poorly understood at the molecular level. This project aims to use induced genetic variation and transcriptome analysis to define new genes and genetic mechanisms through which flowering is regulated by day length and temperature, and to explore the molecular links between flowering and other developmental processes including seed development. This should extend our understanding of how plant architecture, reproduction and yield are regulated by the environment, and address several agronomic issues.Read moreRead less