Preparation of Photo-Affinity Molecular Probes for the Identification of Gibberellin Receptors. Bioactive gibberellins affect numerous processes during plant growth and development, including seed germination, leaf expansion, stem elongation, flowering and fruit development. However, only very limited information is available regarding their mode of action at the molecular level. The central aim of the project is to prepare a family of photo-affinity molecular probes based on the gibberellin m ....Preparation of Photo-Affinity Molecular Probes for the Identification of Gibberellin Receptors. Bioactive gibberellins affect numerous processes during plant growth and development, including seed germination, leaf expansion, stem elongation, flowering and fruit development. However, only very limited information is available regarding their mode of action at the molecular level. The central aim of the project is to prepare a family of photo-affinity molecular probes based on the gibberellin molecule that will be designed to provide critical information on the location and structure of gibberellin receptors. Screening of the probes for potential effectiveness will be determined initially by the measurement of alpha-amylase produced in a standard barley aleurone assay.Read moreRead less
Effects of global climate change on marine phytoplankton: interactions between UV radiation and elevated atmospheric carbon dioxide levels. Global climate change is one of the most significant ecological challenges for the 21st Century. Phytoplankton contribute over 45% of the planet's annual net primary production and form the basis of most aquatic food chains. Conversely, some phytoplankton are toxic and cause problems in marine and fresh waters. Climate change can potentially disrupt aquatic ....Effects of global climate change on marine phytoplankton: interactions between UV radiation and elevated atmospheric carbon dioxide levels. Global climate change is one of the most significant ecological challenges for the 21st Century. Phytoplankton contribute over 45% of the planet's annual net primary production and form the basis of most aquatic food chains. Conversely, some phytoplankton are toxic and cause problems in marine and fresh waters. Climate change can potentially disrupt aquatic foodchains by its impact on primary production by phytoplankton or stimulating growth of potentially toxic forms. Our project will investigate the combined impact of increasing carbon dioxide and ultraviolet light on phytoplankton and thereby help climate modellers assess the impact of climate change on aquatic ecosystems and particularly on the nation's and the world's fisheries.Read moreRead less
The role of chlorophyll f in photosynthesis. The knowledge of energetic limits of oxygenic photosynthesis will provide opportunities for improving the efficiency of photosynthesis by using a wider range of the solar spectrum. This project aims to understand the roles of newly discovered chlorophyll f in central photoreactions and its biosynthesis.
Comparative Biophysical Studies on Photosystem II of Higher Plants and Cyanobacteria. Photosystem II (PS-II) is one of two light trapping protein assemblies involved in the conversion of light into metabolic energy in all plants and algae. The manganese containing active site of PS-II is responsible for oxygen formation from water. The organisation and functioning of this centre and the detailed mechanism of photochemical energy conversion are not understood. This project will employ a combinati ....Comparative Biophysical Studies on Photosystem II of Higher Plants and Cyanobacteria. Photosystem II (PS-II) is one of two light trapping protein assemblies involved in the conversion of light into metabolic energy in all plants and algae. The manganese containing active site of PS-II is responsible for oxygen formation from water. The organisation and functioning of this centre and the detailed mechanism of photochemical energy conversion are not understood. This project will employ a combination of powerful biophysical techniques to probe the structure and mechanism of PS-II as a knowledge base for eventual genetic manipulation of plants and stategies for artificial photosynthesis.Read moreRead less
What limits CO2 diffusion inside leaves? Dissecting the diffusion path with Arabidopsis mutants. Human induced increase in atmospheric carbon dioxide is now generally accepted as contributing to global warming. Forecasting our future impact relies on models of terrestrial photosynthesis which use a signature in the atmosphere created by plants when they discriminate against the heavy stable isotope of carbon during photosynthesis. Discrimination between isotopes is affected by carbon dioxide dif ....What limits CO2 diffusion inside leaves? Dissecting the diffusion path with Arabidopsis mutants. Human induced increase in atmospheric carbon dioxide is now generally accepted as contributing to global warming. Forecasting our future impact relies on models of terrestrial photosynthesis which use a signature in the atmosphere created by plants when they discriminate against the heavy stable isotope of carbon during photosynthesis. Discrimination between isotopes is affected by carbon dioxide diffusion within leaves and key steps in this process will be identified through the use of Arabidopsis mutants. Better representation of this process in models will improve estimates of terrestrial photosynthesis and climate change forecastsRead moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0347746
Funder
Australian Research Council
Funding Amount
$199,000.00
Summary
Circular-dichroism stopped-flow spectrometer for rapid molecular interactions and membrane transport. A stopped-flow spectroscope is requested that can capture the rapid kinetics of changes in conformation of biopolymers, macromolecules and chiral catalysts as they interact with other molecules. This includes measurement of rapid transport of solutes through membrane proteins in lipid membranes. The versatile instrument can also determine circular dichroism spectra of peptides, proteins, tannins ....Circular-dichroism stopped-flow spectrometer for rapid molecular interactions and membrane transport. A stopped-flow spectroscope is requested that can capture the rapid kinetics of changes in conformation of biopolymers, macromolecules and chiral catalysts as they interact with other molecules. This includes measurement of rapid transport of solutes through membrane proteins in lipid membranes. The versatile instrument can also determine circular dichroism spectra of peptides, proteins, tannins, pigment complexes and chiral catalysts that is required within several existing collaborations to understand the tertiary structures, stability and interactions between the complex molecules. The instrument will significantly strengthen research on macromolecules and polymers that have applications in the wine industry, nanotechnology, and biotechnology.Read moreRead less
Development of cryopreservation for high value provenance collections of recalcitrant plant species used in post-mining restoration. This project will develop new and innovative ways to store highly valued native plant germplasm at ultra cold temperatures (-196 °C, in liquid nitrogen) as a means to ensure that elite genotypes used in minesite restoration and critically endangered species are not lost forever to extinction. This project will be the first of its type in Australia utilising a multi ....Development of cryopreservation for high value provenance collections of recalcitrant plant species used in post-mining restoration. This project will develop new and innovative ways to store highly valued native plant germplasm at ultra cold temperatures (-196 °C, in liquid nitrogen) as a means to ensure that elite genotypes used in minesite restoration and critically endangered species are not lost forever to extinction. This project will be the first of its type in Australia utilising a multidisciplinary approach to answer key storage questions and will provide significant national benefits to conservation programs and landcare groups, providing these with additional resources to ensure the long-term survival of native plant germplasm collections. Read moreRead less
Elevated carbon dioxide (CO2) effects on vegetation: repairing the disconnect between experiments and models. Ecosystem models are important tools used in a variety of applications, including predicting how vegetation uptake of carbon affects global climate, estimating carbon sequestration by natural and planted forests and determining water yield of catchments. Although there has been a massive investment in experiments to determine plant response to elevated carbon dioxide [CO2], ecosystem mod ....Elevated carbon dioxide (CO2) effects on vegetation: repairing the disconnect between experiments and models. Ecosystem models are important tools used in a variety of applications, including predicting how vegetation uptake of carbon affects global climate, estimating carbon sequestration by natural and planted forests and determining water yield of catchments. Although there has been a massive investment in experiments to determine plant response to elevated carbon dioxide [CO2], ecosystem models do not incorporate this body of data as well as they could. This project will use innovative methods to bridge the gap between experimental data and ecosystem models, resulting in significantly improved information for managers of Australia's natural resources into the future.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100015
Funder
Australian Research Council
Funding Amount
$200,000.00
Summary
Purchase of an ultra-performance liquid chromatograph - triple quadrupole mass spectrometer. The diverse research supported by the proposed instrument group addresses several national research priorities. It will lead to a better fundamental understanding of the hormonal control of plant growth, improved catalysts for organic synthesis including pharmaceuticals and improved food safety. In forestry it will help to increase forest productivity through mitigating losses from insect and mamm ....Purchase of an ultra-performance liquid chromatograph - triple quadrupole mass spectrometer. The diverse research supported by the proposed instrument group addresses several national research priorities. It will lead to a better fundamental understanding of the hormonal control of plant growth, improved catalysts for organic synthesis including pharmaceuticals and improved food safety. In forestry it will help to increase forest productivity through mitigating losses from insect and mammalian pests and enhancing wood quality. In pharmaceutics, improved treatments for asthma are expected. This facility will provide the infrastructure essential for many researchers to maintain internationally competitive profiles in their areas and continue to offer postgraduate training and postdoctoral opportunities.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100059
Funder
Australian Research Council
Funding Amount
$350,790.00
Summary
Advanced high resolution biomolecular analysis facility for Tasmania. This project aims to establish an advanced, multi-purpose mass spectrometry platform for high-throughput and targeted biomolecular analysis, including proteomics and metabolomics. The purpose of the project is to provide a centralised state-of-the-art facility that supports research programs in plant science, agricultural research, food safety, animal and human health research and separation science. Potential benefits from th ....Advanced high resolution biomolecular analysis facility for Tasmania. This project aims to establish an advanced, multi-purpose mass spectrometry platform for high-throughput and targeted biomolecular analysis, including proteomics and metabolomics. The purpose of the project is to provide a centralised state-of-the-art facility that supports research programs in plant science, agricultural research, food safety, animal and human health research and separation science. Potential benefits from the project include increased agricultural productivity and food security, improved knowledge of age and injury-related changes in neurophysiology, helping to prevent the extinction of iconic Tasmanian wildlife and the development of advanced micro-electroseparation technologies.Read moreRead less