Enhancing plant photosynthesis by engineering the carbon dioxide (CO2)-fixing enzyme Rubisco. Improving the ability of crops to use water, sunlight and fertiliser more efficiently would have economic benefits for Australia and ease the environmental impacts associated with agricultural practices. Photosynthesis research has confirmed that such improvements are theoretically possible by enhancing the efficiency of the protein, Rubisco, which initiates the conversion of carbon dioxide into carbon ....Enhancing plant photosynthesis by engineering the carbon dioxide (CO2)-fixing enzyme Rubisco. Improving the ability of crops to use water, sunlight and fertiliser more efficiently would have economic benefits for Australia and ease the environmental impacts associated with agricultural practices. Photosynthesis research has confirmed that such improvements are theoretically possible by enhancing the efficiency of the protein, Rubisco, which initiates the conversion of carbon dioxide into carbon compounds required for growth. The biotechnological research proposed here uses unique capabilities to improve our understanding of structural features in Rubisco that influence its assembly and functional efficiency in plants. This knowledge will pave the way for transplanting more efficient Rubisco into crops to improve their growth.Read moreRead less
IMPROVING NITROGEN USE EFFICIENCY IN CROP PLANTS: ROLE OF THE AMMONIUM TRANSPORT FAMILY AMT. Improving nitrogen use efficiency in crop plants will reduce the use of environmentally damaging nitrogen fertilisers that threaten through leaching the sustainability of Australia's agricultural sector and local water ecosystems. Plants contain genes that encode transport proteins required for the uptake of nitrogen (ammonium and nitrate) from the soil. We will identify the in planta activity of the A ....IMPROVING NITROGEN USE EFFICIENCY IN CROP PLANTS: ROLE OF THE AMMONIUM TRANSPORT FAMILY AMT. Improving nitrogen use efficiency in crop plants will reduce the use of environmentally damaging nitrogen fertilisers that threaten through leaching the sustainability of Australia's agricultural sector and local water ecosystems. Plants contain genes that encode transport proteins required for the uptake of nitrogen (ammonium and nitrate) from the soil. We will identify the in planta activity of the AMT family of ammonium transporters and associated signalling pathways which control the uptake and assimilation of ammonium in plants. This project will confirm the mechanisms involved in ammonium uptake from the soil and lead to the development of ammonium-nitrogen efficient crop plants.Read moreRead less
Identifying potential barriers to transplanting modified forms of the CO2-fixing enzyme, Rubisco, into plants. Improving the ability of crops to use water, light and fertiliser more efficiently would have economic benefits and ease the environmental impacts associated with agricultural practices. It is thought that such improvements can be made by enhancing the efficiency of the photosynthetic protein, Rubisco, which fixes most of the CO2 in the biosphere. The research proposed here uses unique ....Identifying potential barriers to transplanting modified forms of the CO2-fixing enzyme, Rubisco, into plants. Improving the ability of crops to use water, light and fertiliser more efficiently would have economic benefits and ease the environmental impacts associated with agricultural practices. It is thought that such improvements can be made by enhancing the efficiency of the photosynthetic protein, Rubisco, which fixes most of the CO2 in the biosphere. The research proposed here uses unique Rubisco transplantation capabilities that I have developed to improve our fundamental understanding of how Rubisco is processed and its activity regulated in plants. This will pave the way for our ongoing efforts to engineer and transplant more efficient Rubisco into crops.Read moreRead less
Co-evolution of the host pathogen interaction between Leptosphaeria maculans and Brassica species. Brassica canola is Australia's third largest export crop, producing 13% of the world's canola oil. However, blackleg disease, caused by the fungus Leptospheria maculans leads to annual yield losses of 15%, with 100% loss associated with breakdown of resistance. International investment has provided novel genome resources for Brassica and L. maculans. Applying these resources to understand the co-ev ....Co-evolution of the host pathogen interaction between Leptosphaeria maculans and Brassica species. Brassica canola is Australia's third largest export crop, producing 13% of the world's canola oil. However, blackleg disease, caused by the fungus Leptospheria maculans leads to annual yield losses of 15%, with 100% loss associated with breakdown of resistance. International investment has provided novel genome resources for Brassica and L. maculans. Applying these resources to understand the co-evolution of this plant-fungal interaction could prevent the current boom-bust cycle of canola production in Australia. This study will also provide a model and knowledge base for applications in other species, leading to enhanced crops with increased plant protection and robust, reliable productivity.Read moreRead less
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
Active bicarbonate transporters from cyanobacteria: physiological properties, genetic regulation, and introduction into plants for crop improvement. An intriguing set of membrane transport proteins that accumulate bicarbonate into marine cyanobacterial cells will be investigated. These proteins support the crucial process of photosynthetic carbon dioxide fixation in marine cyanobacteria (blue-green algae), which are major contributors to global carbon dioxide sequestration and form one of the f ....Active bicarbonate transporters from cyanobacteria: physiological properties, genetic regulation, and introduction into plants for crop improvement. An intriguing set of membrane transport proteins that accumulate bicarbonate into marine cyanobacterial cells will be investigated. These proteins support the crucial process of photosynthetic carbon dioxide fixation in marine cyanobacteria (blue-green algae), which are major contributors to global carbon dioxide sequestration and form one of the foundations of the marine food web. These bicarbonate "transporters" will also be transferred into a model plant system to test whether the efficiency of photosynthesis can be improved, with corresponding gains in the water-use efficiency of these plants. If successful this technology will have profound global implications for improving crop production in semi-arid areas.Read moreRead less
Regulation of Plant Development by Small RNAs. Understanding the roles of small RNAs and their pathways is a new field of research that is giving, and will continue to give profound insights into how multicellular organisms regulate gene expression at a genomic level. Research in this area has already led to RNA interference technology, by which almost any gene can be switched off, and there is considerable potential for other gene silencing and trait modification technologies to emerge. The pro ....Regulation of Plant Development by Small RNAs. Understanding the roles of small RNAs and their pathways is a new field of research that is giving, and will continue to give profound insights into how multicellular organisms regulate gene expression at a genomic level. Research in this area has already led to RNA interference technology, by which almost any gene can be switched off, and there is considerable potential for other gene silencing and trait modification technologies to emerge. The project will yield insights into fundamental biological processes which are expected to engender applications in agriculture and biotechnology. It will maintain and enhance Australia's position in this area.Read moreRead less
Small RNAs: what makes a plant, a plant. Understanding the roles of small RNAs and their pathways is a young field of research that is giving, and will continue to give, profound insights into how multicellular organisms regulate gene expression at a genomic level. Research in this area has already led to RNA interference technology, by which almost any gene can be switched off, and there is considerable potential for other gene silencing and trait modification technologies to emerge. The projec ....Small RNAs: what makes a plant, a plant. Understanding the roles of small RNAs and their pathways is a young field of research that is giving, and will continue to give, profound insights into how multicellular organisms regulate gene expression at a genomic level. Research in this area has already led to RNA interference technology, by which almost any gene can be switched off, and there is considerable potential for other gene silencing and trait modification technologies to emerge. The project will yield insights into fundamental biological processes which are expected to engender applications in agriculture and biotechnology. It will maintain and enhance Australia's position in this area.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989147
Funder
Australian Research Council
Funding Amount
$950,000.00
Summary
Advanced high throughput genomics facility for biological, medical, agricultural, environmental and evolutionary research. Infrastructure requested will expand the capacity of researchers in NSW/NT to undertake environmental, medical and evolutionary studies using state-of-the-art technologies based on the recent advances in DNA sequencing analyses. It will ensure the retention of leading researchers in the exciting areas of genomics and Systems Biology and make a significant contribution to bi ....Advanced high throughput genomics facility for biological, medical, agricultural, environmental and evolutionary research. Infrastructure requested will expand the capacity of researchers in NSW/NT to undertake environmental, medical and evolutionary studies using state-of-the-art technologies based on the recent advances in DNA sequencing analyses. It will ensure the retention of leading researchers in the exciting areas of genomics and Systems Biology and make a significant contribution to biomolecular research in medicine, agriculture and environmental biology, thereby providing major benefits to the wider community. The application will enhance existing genomic technologies by substantially increasing the scope of experiments that can be performed leading to important advances in gene discovery.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100130
Funder
Australian Research Council
Funding Amount
$850,000.00
Summary
Systems biology: New generation DNA sequencing to functional analysis. The technique of DNA sequencing (or 'reading' the lines of the four repeating letters that make up the genetic code) illustrates how technological developments have become the main drivers in exploring the roles of genetic factors across a spectrum of research activities. Funding provided through this ARC grant will allow the purchase of the latest DNA sequencing platform, the Illumina Solexa, as well as equipment that will b ....Systems biology: New generation DNA sequencing to functional analysis. The technique of DNA sequencing (or 'reading' the lines of the four repeating letters that make up the genetic code) illustrates how technological developments have become the main drivers in exploring the roles of genetic factors across a spectrum of research activities. Funding provided through this ARC grant will allow the purchase of the latest DNA sequencing platform, the Illumina Solexa, as well as equipment that will be used to understand the biological function of the DNA sequencing results that are obtained. The equipment will allow Australian researchers to compete on an equal footing with the international leaders in understanding the roles played by genes in plants, microorganisms, animals and humans.Read moreRead less