Discovery Early Career Researcher Award - Grant ID: DE170100310
Funder
Australian Research Council
Funding Amount
$360,533.00
Summary
Atmospheric trace gases: Fuelling the dormant microbial majority. This project aims to determine the physiological roles and ecological significance of hydrogen, methane and carbon monoxide scavenging. Bacteria adapt to adverse environmental conditions such as energy-starvation by entering dormant states. The fuel sources that sustain this dormant majority have yet to be resolved. Aerobic soil bacteria survive by scavenging trace gases from the atmosphere; they literally live on thin air. These ....Atmospheric trace gases: Fuelling the dormant microbial majority. This project aims to determine the physiological roles and ecological significance of hydrogen, methane and carbon monoxide scavenging. Bacteria adapt to adverse environmental conditions such as energy-starvation by entering dormant states. The fuel sources that sustain this dormant majority have yet to be resolved. Aerobic soil bacteria survive by scavenging trace gases from the atmosphere; they literally live on thin air. These trace gas scavengers are the major biological sinks in the global methane and hydrogen cycles. This project aims to study entire ecosystems of trace gas scavengers, which could enhance understanding of soil microbial ecology and biogeochemical cycling. By studying the regulation and distribution of gas scavenging, we can better model how these sinks respond to global change.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE200100156
Funder
Australian Research Council
Funding Amount
$471,000.00
Summary
A facility for quantification and isotopic analysis of trace gases. This project aims to develop a new facility for the analysis of trace gases, including nitrous oxide, methane, hydrogen, carbon monoxide, and nitric oxide. This will provide two new capabilities for Australia: 1. It will further our ability to study how microbes cycle trace gases across the continuum from arid soils to the coastal ocean; 2. It will allow us to better understand microbial reactions that remove nitrogen pollution. ....A facility for quantification and isotopic analysis of trace gases. This project aims to develop a new facility for the analysis of trace gases, including nitrous oxide, methane, hydrogen, carbon monoxide, and nitric oxide. This will provide two new capabilities for Australia: 1. It will further our ability to study how microbes cycle trace gases across the continuum from arid soils to the coastal ocean; 2. It will allow us to better understand microbial reactions that remove nitrogen pollution. This will allow us to better understand, monitor and manage microbial processes within soils, sediments, and waters that undertake key ecosystem services, including removal of nitrogen and pollutant gases. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180100911
Funder
Australian Research Council
Funding Amount
$365,058.00
Summary
The mechanisms driving microbial navigation in marine systems. This project aims to apply advanced video-microscopy to characterise microbial motion at the single cell level, interrogating their navigational responses in precisely controlled physical and chemical conditions. Ocean carbon cycling is driven by the concerted action of marine microbes, but the fine-scale interactions between these microbes and their physical and chemical environments remains elusive. The project findings will unrave ....The mechanisms driving microbial navigation in marine systems. This project aims to apply advanced video-microscopy to characterise microbial motion at the single cell level, interrogating their navigational responses in precisely controlled physical and chemical conditions. Ocean carbon cycling is driven by the concerted action of marine microbes, but the fine-scale interactions between these microbes and their physical and chemical environments remains elusive. The project findings will unravel the fundamental processes governing microbial motion in real environments, and develop the mechanistic modelling tools required to make quantitative ecosystem-level predictions of how soil-atmosphere-water-marine systems respond in the face of environmental change.Read moreRead less
Genome-level insight into the dynamics of a model coral microbiome. The aim of the project is to examine structural and functional microbiome dynamics in an ecologically important coral on the Great Barrier Reef along a natural temperature gradient. Microorganisms form an intimate symbiotic relationship with corals and are critical to their health. However, the microbiome can be disrupted by environmental perturbations, including higher-than-normal ocean temperatures, leaving the coral susceptib ....Genome-level insight into the dynamics of a model coral microbiome. The aim of the project is to examine structural and functional microbiome dynamics in an ecologically important coral on the Great Barrier Reef along a natural temperature gradient. Microorganisms form an intimate symbiotic relationship with corals and are critical to their health. However, the microbiome can be disrupted by environmental perturbations, including higher-than-normal ocean temperatures, leaving the coral susceptible to disease and bleaching. Currently, our understanding of how the microbiome composition and metabolic function change in response to seasonal temperature variation and disease is limited. This project is designed to provide insight into the role the microbiome plays in maintaining coral health and may aid in the long-term preservation of the reefs.Read moreRead less
Revealing the microbial process of iron-driven anaerobic ammonium oxidation. This project aims to gain fundamental understanding of the recently discovered microbially-facilitated process of anaerobic ammonium oxidation that is coupled to iron reduction. This process (called Feammox) is suggested to be responsible for significant nitrogen loss from soil and sediment ecosystems, resulting in pollution of the atmosphere and our water systems. In the project, the Feammox microorganisms will be enri ....Revealing the microbial process of iron-driven anaerobic ammonium oxidation. This project aims to gain fundamental understanding of the recently discovered microbially-facilitated process of anaerobic ammonium oxidation that is coupled to iron reduction. This process (called Feammox) is suggested to be responsible for significant nitrogen loss from soil and sediment ecosystems, resulting in pollution of the atmosphere and our water systems. In the project, the Feammox microorganisms will be enriched and characterised to reveal the metabolic details of the iron reduction and ammonium oxidation pathways. This will improve understanding of ecosystem nitrogen flux and benefit the management of nitrogen fertilizers used to meet the food and energy requirements of the world’s growing populations.Read moreRead less
Stress, virulence and bacterial disease in temperate seaweeds: the rise of the microbes. Climate change is predicted to increase the spread and virulence of pathogens, and decrease the resistance to disease via temperature stress on the hosts. Combined with other human impacts (higher nutrients, pollution), we may be facing a major rise in the effect of disease on natural communities. However, these effects are largely unstudied. We will investigate the impact of marine pathogens on kelps and ....Stress, virulence and bacterial disease in temperate seaweeds: the rise of the microbes. Climate change is predicted to increase the spread and virulence of pathogens, and decrease the resistance to disease via temperature stress on the hosts. Combined with other human impacts (higher nutrients, pollution), we may be facing a major rise in the effect of disease on natural communities. However, these effects are largely unstudied. We will investigate the impact of marine pathogens on kelps and other seaweeds when they are stressed by temperature, elevated nutrients or other anthropogenic stressors. Kelp are the 'trees of the oceans', the organisms responsible for creating much of the habitat that fishes and other organisms live in. The loss of kelp forests due to disease would radically change these environments.Read moreRead less
In situ remediation in mine site rehabilitation. In situ remediation in mine site rehabilitation. By enhancing and guiding abiotic and biotic processes of soil development, this project aims to accelerate the in situ remediation of bauxite residue (alumina refining tailings). Over 7 gigatonnes of tailings are produced globally every year, comprising complex mineral assemblages at extremes of pH and salinity with minimal biological activity. This project will build detailed knowledge on the chemi ....In situ remediation in mine site rehabilitation. In situ remediation in mine site rehabilitation. By enhancing and guiding abiotic and biotic processes of soil development, this project aims to accelerate the in situ remediation of bauxite residue (alumina refining tailings). Over 7 gigatonnes of tailings are produced globally every year, comprising complex mineral assemblages at extremes of pH and salinity with minimal biological activity. This project will build detailed knowledge on the chemical, physical, and biological properties of bauxite residue and apply this to develop field-scale in situ remediation strategies. This research will also advance understanding of soil development and primary succession of microbial communities in extreme, anthropogenic environments such as those presented by tailings.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100248
Funder
Australian Research Council
Funding Amount
$368,600.00
Summary
Annotating unknown microbial gene functions with organic matter change. This project intends to develop a new method for determining the function of microbial genomes. Microbes are all pervasive on Earth. It is now possible to routinely sequence microbial genomes. However, the function of most genes encoded on these genomes remains elusive, severely limiting our understanding of most ecosystems. This project seeks to develop new methods to assign function to uncharacterised genes, by correlating ....Annotating unknown microbial gene functions with organic matter change. This project intends to develop a new method for determining the function of microbial genomes. Microbes are all pervasive on Earth. It is now possible to routinely sequence microbial genomes. However, the function of most genes encoded on these genomes remains elusive, severely limiting our understanding of most ecosystems. This project seeks to develop new methods to assign function to uncharacterised genes, by correlating changes in metabolite abundance with gene expression in a model permafrost thaw peatland. Determining the function of uncharacterised genes has widespread implications for microbial ecology and its numerous real-world applications, from determining soil greenhouse gas emissions to understanding human intestinal flora.Read moreRead less
Development and implementation of biodiversity information for sustainable management of South Australian groundwater. Clean potable water is one of the most important resources for human health and a successful economy. Increasingly, subterranean aquifers are used for storage and recovery of water. These aquifers contain dynamic ecosystems, but little is known about species composition or about the importance of the presence of various species for water quality. We will use the latest laborator ....Development and implementation of biodiversity information for sustainable management of South Australian groundwater. Clean potable water is one of the most important resources for human health and a successful economy. Increasingly, subterranean aquifers are used for storage and recovery of water. These aquifers contain dynamic ecosystems, but little is known about species composition or about the importance of the presence of various species for water quality. We will use the latest laboratory techniques and DNA identification methods to provide a template for determining ground water diversity and food web dynamics throughout Australia. This project will lead to a better understanding of how to manage ground water in a sustainable manner.Read moreRead less
Enhanced algal biofuel production: optimising photosynthesis in Australian strains of marine algae. Algal biofuel produces a sustainable liquid fuel to help meet our future energy needs. This project will pioneer a multifaceted approach in molecular biology and photophysiology to engineer the best biofuel producers from Australian marine algae and will advance innovation in Australia's biofuel biotechnology development.