Extreme expression: building a platform for industrial plant biotechnology. Plants have remarkable potential as bioreactors for the production of usually non-plant compounds such as medical proteins, industrial proteins including enzymes and polymers. However, to realise this potential, there needs to be very significant advances in the amount of target compounds produced in the bioreactor plants and to develop other plant species as bioreactors. The aim of this project is to develop technologie ....Extreme expression: building a platform for industrial plant biotechnology. Plants have remarkable potential as bioreactors for the production of usually non-plant compounds such as medical proteins, industrial proteins including enzymes and polymers. However, to realise this potential, there needs to be very significant advances in the amount of target compounds produced in the bioreactor plants and to develop other plant species as bioreactors. The aim of this project is to develop technologies that provide the platform to produce large quantities of target novel compounds in plants and extend the range of plant species that can be used as bioreactors. These technologies will provide the basis of a dynamic biofarming industry in Australia.Read moreRead less
Measuring protein turnover in vivo in plant mitochondria and chloroplasts to identify protease targets. This project plans to measure the rate at which proteins degrade inside plants by using stable isotopes of nitrogen and mass spectrometry analysis of isolated protein samples from different plant mutant lines. This will allow new insights into the in vivo role of specific proteases which are involved in regulating energy generating pathways in plant organelles and that are needed for light tol ....Measuring protein turnover in vivo in plant mitochondria and chloroplasts to identify protease targets. This project plans to measure the rate at which proteins degrade inside plants by using stable isotopes of nitrogen and mass spectrometry analysis of isolated protein samples from different plant mutant lines. This will allow new insights into the in vivo role of specific proteases which are involved in regulating energy generating pathways in plant organelles and that are needed for light tolerance, adaptation to day length, growth and normal leaf development. The new information will aid us to develop approaches to alter quality control of the plant proteome as a tool for engineering energy processes in plants.Read moreRead less
Glutaredoxins (GRXs) as agents of redox homeostasis in mitochondria and respiratory-associated cell functions in plants. This project will test the importance of GRXs for the reduction/oxidation mediated network in plant mitochondria and moreover, uncover details of their dynamic features. This knowledge builds the basis for manipulation of mitochondrial GRXs in order to enhance the capability of the plant to cope with naturally occurring stresses.
Defence gene expression in Arabidopsis linked to metabolic perturbation and oxidative signalling via dsr1. Through analysis of a novel pathway of how plants perceive pathogens in the environment, this project aims to link metabolic energy generation pathways with pathogen defence. This could provide novel approaches for protect plants from pathogens by altering the sensitivity of this signalling pathway.
Dissecting novel roles of succinate dehydrogenase in stomatal aperture and root elongation in plants. Succinate dehydrogenase (complex II) is part of the respiration processes in plants and new evidence shows that reactive oxygen species generated by it can influence plant development and stress tolerance. However, there are still many unanswered questions about the composition and function of this enzyme and its dual roles in plants. This project will study this protein complex in the model p ....Dissecting novel roles of succinate dehydrogenase in stomatal aperture and root elongation in plants. Succinate dehydrogenase (complex II) is part of the respiration processes in plants and new evidence shows that reactive oxygen species generated by it can influence plant development and stress tolerance. However, there are still many unanswered questions about the composition and function of this enzyme and its dual roles in plants. This project will study this protein complex in the model plant Arabidopsis and the crop plant rice, identify its role in signalling in depth to provide knowledge adding development of strategies for improving tolerance of crops to stresses.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120100307
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Determining organellar gene expression in distinct cell types: a missing piece of the puzzle for the transfer of C4 photosynthesis into C3 plants. Enhancing photosynthesis in plants will boost yields in essential food crops, such as rice, and thus offers significant implications for satisfying an increasing global demand for food. This project will investigate the photosynthetic mechanisms that exist in known high performing crops, for application in plants used in adverse climates.
How plants produce their biomass. This project aims to investigate mechanisms that underpin the formation of secondary walls, the bulk of biomass in plant cells. Plant cell walls are essential for plant growth and provide great raw materials for many industrial products. Understanding how cell walls are made would enable tailored plant biomass production, but understanding remains poor. The project will induce secondary walls at will and outline a framework for how secondary walls are made. The ....How plants produce their biomass. This project aims to investigate mechanisms that underpin the formation of secondary walls, the bulk of biomass in plant cells. Plant cell walls are essential for plant growth and provide great raw materials for many industrial products. Understanding how cell walls are made would enable tailored plant biomass production, but understanding remains poor. The project will induce secondary walls at will and outline a framework for how secondary walls are made. The outcomes are expected to be relevant for the fuel, feed, food and construction sectors, and thus to Australia's future.Read moreRead less
The role of plant hormones in legume symbioses. Soil microbes can give plants access to previously unavailable but essential nutrients through symbioses. Legumes are unique as they form symbioses with both nitrogen-fixing bacteria and with mycorrhizal fungi that supply nutrients such as phosphate. This proposal will investigate the role of the plant hormones (small, mobile, potent growth regulators) in the formation of these symbiotic relationships across legume genera. An insight into the commo ....The role of plant hormones in legume symbioses. Soil microbes can give plants access to previously unavailable but essential nutrients through symbioses. Legumes are unique as they form symbioses with both nitrogen-fixing bacteria and with mycorrhizal fungi that supply nutrients such as phosphate. This proposal will investigate the role of the plant hormones (small, mobile, potent growth regulators) in the formation of these symbiotic relationships across legume genera. An insight into the common and divergent roles of hormones in these symbioses is essential to provide researchers and breeders with new tools to maximise nutrient acquisition by legumes, important crops contributing an estimated one billion Australian dollars per year to the Australian economy.Read moreRead less
Australia's native sorghums: a model for testing plant adaptation theories. This proposal tests an emerging theory that allocation of resources by plants to growth or defence are interrelated, not alternatives as currently assumed. Like many crops, sorghum produces toxic cyanide, especially during droughts but its wild relatives make much less. This project aims to discover why cyanide is so common in domesticated plants and why levels increase with stress. This has important implications for de ....Australia's native sorghums: a model for testing plant adaptation theories. This proposal tests an emerging theory that allocation of resources by plants to growth or defence are interrelated, not alternatives as currently assumed. Like many crops, sorghum produces toxic cyanide, especially during droughts but its wild relatives make much less. This project aims to discover why cyanide is so common in domesticated plants and why levels increase with stress. This has important implications for developing crops that are high yielding and also climate resilient. Expected outcomes include full genome sequences for all of Australia’s unique native sorghums, confirmation of new theories on the interrelationships between defence and growth and identification of new traits vital for developing the crops of the future. Read moreRead less
Deciphering organelle transport mechanisms in plants. Plant growth, productivity and seed yield all depend on organelle function which requires metabolites and proteins
to be transported across membranes. This mechanism of transport is carried out by specific transporters that have
the ability to transport macromolecules, and regulate organelle function. We have identified new transporters that
are involved in amino acid and protein transport in the mitochondria, chloroplast and peroxisomes. We ....Deciphering organelle transport mechanisms in plants. Plant growth, productivity and seed yield all depend on organelle function which requires metabolites and proteins
to be transported across membranes. This mechanism of transport is carried out by specific transporters that have
the ability to transport macromolecules, and regulate organelle function. We have identified new transporters that
are involved in amino acid and protein transport in the mitochondria, chloroplast and peroxisomes. We will assign
function to each protein and investigate the importance in regulating organelle biogenesis. This will allow us to
modulate plant energy production for optimal growth and to withstand abiotic stress, all of which have
agriculturally beneficial consequences. Read moreRead less