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Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial ana ....Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial analysis and modelling methods. Expected outcomes are a mechanistic understanding of tree-mediated methane fluxes, helping to constrain regional, national and global methane budgets. The results of this study will help inform publicly funded greenhouse gas abatement strategies, ensuring a maximal return on investment.Read moreRead less
The future of forests under climatic stress. This project aims to measure the vulnerability of forest trees to more extreme drought as global temperatures inevitably rise. Australian forests face the immediate threat of increased mortality associated with intensifying drought stress in the future. Understanding the magnitude of this threat is of the utmost urgency. This project aims to predict future mortality of forest communities in Australia and worldwide using recent breakthroughs enabling t ....The future of forests under climatic stress. This project aims to measure the vulnerability of forest trees to more extreme drought as global temperatures inevitably rise. Australian forests face the immediate threat of increased mortality associated with intensifying drought stress in the future. Understanding the magnitude of this threat is of the utmost urgency. This project aims to predict future mortality of forest communities in Australia and worldwide using recent breakthroughs enabling the rapid quantification of lethal stress in trees. This new understanding will provide a basis upon which to make far-reaching decisions about land management, conservation and restoration.Read moreRead less
Predicting seed lifespan for improved curation of conservation seed banks. This project aims to improve the practice of seed banking for the conservation of the Australian flora. Recent evidence points to diverse and complex storage behaviour for wild seeds and to seeds of many species being shorter-lived than anticipated. Predicting seed storage behaviour and viability decline is central to effective seedbanking. This project expects to develop new high throughput technologies and data interrog ....Predicting seed lifespan for improved curation of conservation seed banks. This project aims to improve the practice of seed banking for the conservation of the Australian flora. Recent evidence points to diverse and complex storage behaviour for wild seeds and to seeds of many species being shorter-lived than anticipated. Predicting seed storage behaviour and viability decline is central to effective seedbanking. This project expects to develop new high throughput technologies and data interrogation techniques for predicting seed lifespan in storage, and alternative storage protocols for problematic seeds. Results will allow seed bank managers to more efficiently triage and curate their seed collections and will benefit seed banks globally.Read moreRead less
A step change in modeling leaf respiration-photosynthesis relationships . This project aims to use innovative, high-throughput technologies to develop a novel framework that links daytime photosynthesis and starch/amino acid mobilisation to variations in night-time leaf respiration. Variations in leaf respiration can have large impacts on ecosystem functioning and the Earth’s climate. Although advances have been made in respiration modelling, current models are unable to predict dynamic, day-to- ....A step change in modeling leaf respiration-photosynthesis relationships . This project aims to use innovative, high-throughput technologies to develop a novel framework that links daytime photosynthesis and starch/amino acid mobilisation to variations in night-time leaf respiration. Variations in leaf respiration can have large impacts on ecosystem functioning and the Earth’s climate. Although advances have been made in respiration modelling, current models are unable to predict dynamic, day-to-day variations in respiratory rates. Expected outcomes include equations that predict daily variations in night-time leaf respiration for environments across Australia and overseas. Benefits to planners include the ability to more accurately model vegetation-atmosphere carbon exchange and future changes in climate. Read moreRead less
Resilient and adaptable urban landscapes: low input woody meadows. Cities around the world are investing hundreds of millions of dollars in urban green spaces. This project aims to improve the quality of low input public landscapes and make our cities more liveable. Typical low maintenance plantings have low diversity, visual appeal and function. This project expects to develop a novel low-cost and resilient approach to urban greening by utilising Australian shrublands as templates for woody mea ....Resilient and adaptable urban landscapes: low input woody meadows. Cities around the world are investing hundreds of millions of dollars in urban green spaces. This project aims to improve the quality of low input public landscapes and make our cities more liveable. Typical low maintenance plantings have low diversity, visual appeal and function. This project expects to develop a novel low-cost and resilient approach to urban greening by utilising Australian shrublands as templates for woody meadows. Through interdisciplinary research and collaborations with eight Partner Organisations, the expected outcomes include knowledge and skill sharing for widespread adoption of resilient, management-friendly woody meadows to enhance and expand urban green spaces in Australia and around the world. Read moreRead less
On the physiology of plant transpiration. This project aims to better understand plant transpiration. It is significant from both a basic and a practical perspective. It intends to solve a conundrum of the biophysics of the evaporative sites within leaves. That is, in dry air, the relative humidity of intercellular air spaces suggests much lower liquid water potentials than those typically measured. At a practical level, the failure to sustain transpiration in dry conditions leads to desiccation ....On the physiology of plant transpiration. This project aims to better understand plant transpiration. It is significant from both a basic and a practical perspective. It intends to solve a conundrum of the biophysics of the evaporative sites within leaves. That is, in dry air, the relative humidity of intercellular air spaces suggests much lower liquid water potentials than those typically measured. At a practical level, the failure to sustain transpiration in dry conditions leads to desiccation and tissue death, and plants differ in this vulnerability. The aim is to apply a novel nanoparticle technique to measure the water potential distribution within the leaf, identify hydraulic resilience attributes, and develop a modern theory of optimal transpiration under varying conditions.Read moreRead less
The role of drought-stress and insect attack on rainforest plant health. This project aims to examine the vulnerability of tropical plants to drought and insect attack in a large-scale field experiment. We will pioneer a new research approach that focuses on the causes and stages of decline in plant health prior to death, in order to identify the characteristics of plant species that make them more susceptible to drought and insect attack. Expected outcomes of this project include an improved ca ....The role of drought-stress and insect attack on rainforest plant health. This project aims to examine the vulnerability of tropical plants to drought and insect attack in a large-scale field experiment. We will pioneer a new research approach that focuses on the causes and stages of decline in plant health prior to death, in order to identify the characteristics of plant species that make them more susceptible to drought and insect attack. Expected outcomes of this project include an improved capacity to predict the function and composition of future forests. This project will provide significant benefits to communities concerned with the direct and indirect effects of droughts in protected areas, forestry reserves and agriculture. Read moreRead less
Australian Laureate Fellowships - Grant ID: FL190100056
Funder
Australian Research Council
Funding Amount
$2,795,000.00
Summary
Smart Plants and Solutions for Enhancing Crop Resilience and Yield. The Fellowship aims to produce transformative solutions targeting crop resilience and food security. The chloroplast, the site of photosynthesis, regulates a suite of cellular processes that control photosynthesis, growth and drought resilience. It is expected that a first ever blueprint of the suite of communication networks used by the chloroplast will be discovered. I will use synthetic biology to rewire the network in order ....Smart Plants and Solutions for Enhancing Crop Resilience and Yield. The Fellowship aims to produce transformative solutions targeting crop resilience and food security. The chloroplast, the site of photosynthesis, regulates a suite of cellular processes that control photosynthesis, growth and drought resilience. It is expected that a first ever blueprint of the suite of communication networks used by the chloroplast will be discovered. I will use synthetic biology to rewire the network in order to generate 'smart plants' that are higher-yielding and more resilient in both good and bad seasons by precisely switching on and off resilience. Such re-imaginings of crop systems, inclusive of societal implications, will help chart the future of Australian agriculture.Read moreRead less
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
Does plasma membrane perception of 2,4-D influence auxin resistance? This project aims to investigate the role of the cell membrane in synthetic auxin herbicide resistance by analysing the functions and interaction partners of candidate resistance proteins. It is expected that this project will generate new knowledge about the very early response of plants to auxin and the difference between susceptible and resistant weeds in perceiving auxin herbicides. Expected outcomes of this project include ....Does plasma membrane perception of 2,4-D influence auxin resistance? This project aims to investigate the role of the cell membrane in synthetic auxin herbicide resistance by analysing the functions and interaction partners of candidate resistance proteins. It is expected that this project will generate new knowledge about the very early response of plants to auxin and the difference between susceptible and resistant weeds in perceiving auxin herbicides. Expected outcomes of this project include the identification of potential herbicide synergists and a greater understanding of how weeds develop resistance to auxin herbicides. This should benefit Australian grain growers by providing more effective weed control options and lessening the amount of unnecessarily-applied herbicide in the environment.Read moreRead less