Bioplastics in the environment: lifetimes and toxicology. Globally, governments are implementing policies to drive a move to a circular economy. In the process, new materials are being introduced whose potential impacts need to be understood before they are widely used. This project pioneers investigations into the rate and extent of biodegradation of biodegradable plastics in aquatic and soil environments and the associated ecotoxicology of this process. In particular, it aims to quantify the e ....Bioplastics in the environment: lifetimes and toxicology. Globally, governments are implementing policies to drive a move to a circular economy. In the process, new materials are being introduced whose potential impacts need to be understood before they are widely used. This project pioneers investigations into the rate and extent of biodegradation of biodegradable plastics in aquatic and soil environments and the associated ecotoxicology of this process. In particular, it aims to quantify the extent to which the surfaces of these materials accumulate environmental pollutants via adsorption and other mechanisms. The outcomes will include conceptual models of biodegradation across environments, including lifetimes and likely impacts, critical information for framing a sustainable plastics industry.Read moreRead less
Fine-scale resolution of genomes in natural microbial communities. This project aims to develop advanced molecular and statistical techniques to precisely resolve the genomes of microbes in the environment. Microbes inhabit every niche on the planet and are fundamental to human and animal health, agriculture, and the environment. The proposed technology will advance our understanding of environmental microbes, leading to advances in areas like climate science and biosecurity where microbes play ....Fine-scale resolution of genomes in natural microbial communities. This project aims to develop advanced molecular and statistical techniques to precisely resolve the genomes of microbes in the environment. Microbes inhabit every niche on the planet and are fundamental to human and animal health, agriculture, and the environment. The proposed technology will advance our understanding of environmental microbes, leading to advances in areas like climate science and biosecurity where microbes play a key role. It will also support the development of billion dollar industries focused on the use of beneficial microbes in agriculture, plant, animal, and human health.Read moreRead less
Do binding proteins allow cyanobacteria to scavenge diverse nutrients? Marine cyanobacteria are abundant primary producers that underlie the entire marine food web. They encode a diverse range of predicted nutrient uptake systems that are highly conserved, suggesting these transporters play critical roles in their success in diverse marine ecosystems. However, there is very limited data regarding their function, specificity and ecological importance. Using our pioneering combinatorial approach, ....Do binding proteins allow cyanobacteria to scavenge diverse nutrients? Marine cyanobacteria are abundant primary producers that underlie the entire marine food web. They encode a diverse range of predicted nutrient uptake systems that are highly conserved, suggesting these transporters play critical roles in their success in diverse marine ecosystems. However, there is very limited data regarding their function, specificity and ecological importance. Using our pioneering combinatorial approach, we will undertake systematic functional characterisation of these nutrient uptake systems and determine their physiological and ecological importance. Our integrative science will provide a molecules-to-ecosystems understanding of cyanobacterial nutrient acquisition.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220101310
Funder
Australian Research Council
Funding Amount
$434,582.00
Summary
A unique and overlooked microbial process scavenging two greenhouse gases. This project aims to perform the first-ever systematic investigation of a novel microbial process, in which two potent gases (methane and nitric oxide) responsible for the climate change are metabolized simultaneously. This process is suggested to be universal in early and modern Earth's aquatic systems, which is a potential but overlooked microbial sink for methane and nitric oxide. By identifying the responsible organis ....A unique and overlooked microbial process scavenging two greenhouse gases. This project aims to perform the first-ever systematic investigation of a novel microbial process, in which two potent gases (methane and nitric oxide) responsible for the climate change are metabolized simultaneously. This process is suggested to be universal in early and modern Earth's aquatic systems, which is a potential but overlooked microbial sink for methane and nitric oxide. By identifying the responsible organisms and their metabolic pathway, this project represents a critical step towards a full understanding of their roles in affecting the greenhouse gas emission. This understanding will also enable us to more reliably predict the global climate change, which is one of the most significant challenges in the 21st Century.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210101029
Funder
Australian Research Council
Funding Amount
$462,763.00
Summary
A global exploration of microbial carbon breakdown in wetland ecosystems. This project aims to investigate how plant litter breakdown in wetlands controls soil carbon preservation by identifying the climatic, environmental and microbial drivers of decomposition on a global scale. This project will generate new knowledge in the area of freshwater and coastal wetland ecology using interdisciplinary approaches in biogeochemistry and microbial ecology. Outcomes of this project include novel global d ....A global exploration of microbial carbon breakdown in wetland ecosystems. This project aims to investigate how plant litter breakdown in wetlands controls soil carbon preservation by identifying the climatic, environmental and microbial drivers of decomposition on a global scale. This project will generate new knowledge in the area of freshwater and coastal wetland ecology using interdisciplinary approaches in biogeochemistry and microbial ecology. Outcomes of this project include novel global datasets that will identify why some wetlands preserve carbon better than others and what management practices can enhance sequestration capacity. This should provide significant benefits, including advancing carbon-cycling models and predictions, and improving capacity to manage and restore wetland function.Read moreRead less
Formation and stabilisation of coastal blue carbon. Blue carbon is organic carbon stored within coastal vegetated ecosystems. This project will examine the composition, formation and dynamics of blue carbon in a range of coastal ecosystems. Combining advanced analytical chemistry with environmental microbiology, we will discover how blue carbon is stabilised and destabilised, a critical factor in nature-based climate change mitigation strategies. Further, we will gain a quantitative understandin ....Formation and stabilisation of coastal blue carbon. Blue carbon is organic carbon stored within coastal vegetated ecosystems. This project will examine the composition, formation and dynamics of blue carbon in a range of coastal ecosystems. Combining advanced analytical chemistry with environmental microbiology, we will discover how blue carbon is stabilised and destabilised, a critical factor in nature-based climate change mitigation strategies. Further, we will gain a quantitative understanding of blue carbon contributions to carbon cycling, providing enhanced modeling and prediction of climate-cycle feedbacks in response to biotic and environmental change. This research will significantly benefit Australia’s effective management of coastal vegetated ecosystems for maximum carbon offsets.Read moreRead less