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Living in a high carbon dioxide world: impacts on freshwater phytoplankton populations from elevated atmospheric carbon dioxide. This project will investigate likely changes in phytoplankton populations in reservoirs that will be caused by increases in atmospheric carbon dioxide over the next century. The project will provide water supply managers with the necessary information to plan future strategies for water treatment and operating procedures.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE120100054
Funder
Australian Research Council
Funding Amount
$420,000.00
Summary
Stable isotope analysis of environmental and physiological samples. Mass spectrometers capable of isotope analysis are essential tools for the earth and environmental sciences, physiology and palaeoecology. This project will provide mass spectrometers for both laboratory and field conditions which will ensure Australia remains at the forefront of international research, attract collaborations and lead to outcomes of global significance.
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
The divergence phenomenon in tree-ring-reconstructed temperatures: global problem or Northern Hemisphere anomaly? Concerns about recent global warming derive from comparisons of current temperatures and past temperatures reconstructed mainly from tree-rings. There is some evidence that tree-rings are becoming less sensitive to temperature at some high-latitude sites. The project will determine the scale and extent of this problem across the Southern Hemisphere.
Connecting soil nitrogen and plant uptake for greener agriculture. This project will use synthetic organic chemistry, biochemistry, root and rhizosphere biology and rhizosphere modelling to establish detailed mechanistic knowledge of the nitrogen (N) transport and uptake processes at the soil-root interface to develop new, efficient urease and nitrification inhibitors for reliable provision of N to the plant/root system. The reduction of excessive N fertilisation has significant environmental be ....Connecting soil nitrogen and plant uptake for greener agriculture. This project will use synthetic organic chemistry, biochemistry, root and rhizosphere biology and rhizosphere modelling to establish detailed mechanistic knowledge of the nitrogen (N) transport and uptake processes at the soil-root interface to develop new, efficient urease and nitrification inhibitors for reliable provision of N to the plant/root system. The reduction of excessive N fertilisation has significant environmental benefits by reducing greenhouse gas emissions and water pollution. This project will lead to a breakthrough for the triple challenge of food security, environmental degradation and climate change, while improving plant productivity and increasing the profitability of agriculture through lower fertiliser costs.Read 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
Species traits, substrates and stormwater grates: improving the health of urban trees by using polluted stormwater as a resource. This project uses plant traits to select existing and novel tree species for glasshouse studies to quantify the uptake of stormwater and polluting nutrients as well as drought tolerance in stormwater street tree systems. In collaboration with water industry and tree nursery industry partners and a syndicate of local councils, the project aims to install passive stormw ....Species traits, substrates and stormwater grates: improving the health of urban trees by using polluted stormwater as a resource. This project uses plant traits to select existing and novel tree species for glasshouse studies to quantify the uptake of stormwater and polluting nutrients as well as drought tolerance in stormwater street tree systems. In collaboration with water industry and tree nursery industry partners and a syndicate of local councils, the project aims to install passive stormwater street tree systems into existing suburbs and new greenfield developments in Melbourne. Models will be used to design and predict the performance of these stormwater street tree systems, and the glasshouse/field research outputs are expected to refine the leading industry and government relevant urban catchment model.Read moreRead less
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
Disorder as a novel determinant of photosynthetic structure and function: an experimental study. Australia enjoys a world reputation in photosynthesis research, typified by hosting the 2001 International Photosynthesis Congress. It also has a claim to fame for theoretical work in non-equilibrium thermodynamics concerning production of disorder or entropy, yielding new insights into planetary climates. This experimental project investigates the novel relation between entropy/entropy production ....Disorder as a novel determinant of photosynthetic structure and function: an experimental study. Australia enjoys a world reputation in photosynthesis research, typified by hosting the 2001 International Photosynthesis Congress. It also has a claim to fame for theoretical work in non-equilibrium thermodynamics concerning production of disorder or entropy, yielding new insights into planetary climates. This experimental project investigates the novel relation between entropy/entropy production and the structure/function of the solar powerhouse of plants (chloroplasts), and addresses fundamental questions at the interface of biology and physics. The research explores chloroplasts as a manifestation of the all-pervading Second Law of Thermodynamics, advancing Australia's contribution to basic science and helping to train researchers.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