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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
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
Genetic and Hormonal Interactions Controlling Shoot Growth. This project will determine how plant growth is regulated at the genetic, biochemical, and physiological levels, and how plant hormones provide key links between the genotype and overall phenotype (phenome). The work uses peas as a model because of the wealth of mutants available and the suitability of the species for physiological and biochemical studies. Our results will allow comparison of development in the caulescent pea plant wi ....Genetic and Hormonal Interactions Controlling Shoot Growth. This project will determine how plant growth is regulated at the genetic, biochemical, and physiological levels, and how plant hormones provide key links between the genotype and overall phenotype (phenome). The work uses peas as a model because of the wealth of mutants available and the suitability of the species for physiological and biochemical studies. Our results will allow comparison of development in the caulescent pea plant with other model species with different growth habits, such as Arabidopsis. The project is significant because it will enable shoot growth to be modified either genetically or chemically to meet particular agronomic objectives.Read moreRead less
Comparative genetics of flowering and photoperiod responsiveness in legumes. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticulturalists seeking ....Comparative genetics of flowering and photoperiod responsiveness in legumes. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticulturalists seeking to modify flowering responses to suit particular production strategies, and will help to maintain the strong position of Australia as a world leader in applied aspects of plant/environment interactions. It will also strengthen the international reputation of Australia for high-quality basic research in plant development.Read moreRead less
Discovery Indigenous Researchers Development - Grant ID: DI0667638
Funder
Australian Research Council
Funding Amount
$166,080.00
Summary
Brassinosteroids and Water Stresses. Water use has become a major factor affecting agricultural development in Australia. Therefore, it is important to develop new techniques to sustain crop production in today's climate. Developing a clearer understanding of brassinosteroids, their underlying role in water stresses and their interaction with known stress-related hormones, such as abscisic acid and ethylene, will eventually enable more effective and efficient manipulation of plant growth in wate ....Brassinosteroids and Water Stresses. Water use has become a major factor affecting agricultural development in Australia. Therefore, it is important to develop new techniques to sustain crop production in today's climate. Developing a clearer understanding of brassinosteroids, their underlying role in water stresses and their interaction with known stress-related hormones, such as abscisic acid and ethylene, will eventually enable more effective and efficient manipulation of plant growth in water stressed areas. This project has the added advantage of working with a legume, a group of plants that make a substantial contribution to the Australian economy. Our increased knowledge of legume development will help underpin future growth of this sector. Read moreRead less
The role of plant hormones in arbuscular mycorrhizal symbiosis. The vast majority of plant species can form a beneficial symbiosis with specialised soil fungi, an association that can enhance the uptake of nutrients from the soil, improve tolerance to drought and disease and minimise soil erosion. An understanding of how plants establish and regulate this important symbiosis has the potential to contribute to the development of productive and sustainable farming systems by making efficient use o ....The role of plant hormones in arbuscular mycorrhizal symbiosis. The vast majority of plant species can form a beneficial symbiosis with specialised soil fungi, an association that can enhance the uptake of nutrients from the soil, improve tolerance to drought and disease and minimise soil erosion. An understanding of how plants establish and regulate this important symbiosis has the potential to contribute to the development of productive and sustainable farming systems by making efficient use of the limited water resources, reducing soil erosion, reducing reliance on pesticides and fertilisers and producing more nutritious fruits, vegetables and grains.Read moreRead less
Integrated genetic regulation of photomorphogenesis in Pisum. This project will use a molecular genetic approach in garden pea to investigate the roles of photoreceptors that mediate developmental responses to light. It will define gene families encoding phytochrome, cryptochrome and phototropin photoreceptors, characterise photoreceptor gene expression, and identify mutants with impaired response to light. The mutants will be used in molecular, physiological and biochemical studies to examine h ....Integrated genetic regulation of photomorphogenesis in Pisum. This project will use a molecular genetic approach in garden pea to investigate the roles of photoreceptors that mediate developmental responses to light. It will define gene families encoding phytochrome, cryptochrome and phototropin photoreceptors, characterise photoreceptor gene expression, and identify mutants with impaired response to light. The mutants will be used in molecular, physiological and biochemical studies to examine how photoreceptors control and co-ordinate development throughout the plant via effects on plant hormone synthesis and response. Results from the project will be of practical importance in manipulating key aspects of plant growth to better suit particular environmental and agronomic objectives.Read moreRead less
Molecular pathways controlling light-regulated development in legumes. 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 o ....Molecular pathways controlling light-regulated development in legumes. 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
Mobile signals and the environmental control of flowering - a comparative genetic analysis. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticultu ....Mobile signals and the environmental control of flowering - a comparative genetic analysis. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticulturalists seeking to modify flowering responses to suit particular production strategies, and will help to maintain the strong position of Australia as a world leader in applied aspects of plant/environment interactions. It will also strengthen the international reputation of Australia for high-quality basic research in plant development .Read moreRead less