Microscale insights into ocean-scale processes: microbial behaviour as a driver of ocean biogeochemistry. Microscopic plankton regulate the ocean's chemical cycles, which ultimately support life on earth. However, the ecological interactions driving these processes are poorly understood. This project will use novel approaches to decipher the behaviours of marine microbes, providing a more complete perception of how ocean ecosystems operate and influence climate.
Function and application of novel proteins from sponge symbionts. This project aims to determine the function of eukaryotic-like proteins (ELPs) from bacterial symbionts of sponges and apply this knowledge to develop new tools for biotechnology. This project will use innovative microscopy techniques and gene expression studies to define the molecular and cellular interactions of ELPs with sponges and how this is influenced by changing environmental conditions. ELPs will be further used to create ....Function and application of novel proteins from sponge symbionts. This project aims to determine the function of eukaryotic-like proteins (ELPs) from bacterial symbionts of sponges and apply this knowledge to develop new tools for biotechnology. This project will use innovative microscopy techniques and gene expression studies to define the molecular and cellular interactions of ELPs with sponges and how this is influenced by changing environmental conditions. ELPs will be further used to create new, artificial interactions between bacteria and eukaryotes. This project will provide fundamental knowledge on the evolution and function of newly discovered ELPs found in both beneficial and pathogenic bacteria and paves the way to control symbiosis for biotechnological applications.Read moreRead less
Chemical warfare at small scales: does eukaryotic chemical defense theory fit biofilms? The ecology of bacteria has long been treated separately from the ecology of higher organisms. Thus we do not know whether the ecology of bacteria operates by the same general rules as those of plants and animals. This significantly diminishes our understanding of the natural world, and our capacity to manage our environment. In this project we will systematically test ecological defense theories in bacterial ....Chemical warfare at small scales: does eukaryotic chemical defense theory fit biofilms? The ecology of bacteria has long been treated separately from the ecology of higher organisms. Thus we do not know whether the ecology of bacteria operates by the same general rules as those of plants and animals. This significantly diminishes our understanding of the natural world, and our capacity to manage our environment. In this project we will systematically test ecological defense theories in bacterial systems. Our aim is to merge our understanding of the ecology of these very different organisms. This integration of plant and animal ecology and environmental microbiology is new for both fields, and thus studies such as this one have the potential to put Australia at the forefront of this exciting new approach to our environment.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120101213
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Microbial buffering: protecting the Great Barrier Reef against anthropogenic impacts. Coral reefs are hotspots of diversity, but are susceptible to human activities such as agriculture and tourism. Novel molecular approaches will be used to characterise what microorganisms are found at polluted and non-polluted sites of the Great Barrier Reef lagoon and what metabolic pathways they use to protect it against human impacts.
Australia's ocean microbiome: how the diversity and functionality of microbes influence key oceanographic provinces. Every millilitre of seawater contains millions of microbes that maintain the health of our planet, but their identity and function in Australian waters is undefined. This project will identify the microbes inhabiting Australian marine systems, elucidate the services they provide, and predict how they will be affected by future environmental changes
The effect of microbial diversity vs function on marine holobionts. This project aims to integrate a central theme of modern ecology - the relationship between biodiversity and functioning of communities - with the new biological paradigm of holobionts, where organisms are the entirety of the host plus its associated microbiome. This project blends marine and microbial ecology, aiming to experimentally decouple effects of microbial diversity versus function on the performance of dominant marine ....The effect of microbial diversity vs function on marine holobionts. This project aims to integrate a central theme of modern ecology - the relationship between biodiversity and functioning of communities - with the new biological paradigm of holobionts, where organisms are the entirety of the host plus its associated microbiome. This project blends marine and microbial ecology, aiming to experimentally decouple effects of microbial diversity versus function on the performance of dominant marine holobionts, habitat-forming seaweeds. Expected outcomes are to characterise key microbial taxa and functions and their effects on seaweed performance, and how this is affected by environmental stress. This will provide significant benefits, such as providing critical information and new tools for understanding and managing a major Australian ecosystem.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
Australian Laureate Fellowships - Grant ID: FL140100021
Funder
Australian Research Council
Funding Amount
$2,700,000.00
Summary
Building virtual cyanobacteria: moving beyond the genomics era. Building virtual cyanobacteria: moving beyond the genomics era. This project aims to establish a new understanding of complex biological systems through the development of computational models of single cells and global ecosystems. The project will focus on globally important photosynthetic bacteria that underlie the entire marine food web. This project aims to characterise the diversity and abundance of photosynthetic bacteria acro ....Building virtual cyanobacteria: moving beyond the genomics era. Building virtual cyanobacteria: moving beyond the genomics era. This project aims to establish a new understanding of complex biological systems through the development of computational models of single cells and global ecosystems. The project will focus on globally important photosynthetic bacteria that underlie the entire marine food web. This project aims to characterise the diversity and abundance of photosynthetic bacteria across Australia's marine habitats and unravel the genetic basis for their adaptation to different environments. This data will be integrated with biochemical and physiological studies to create quantitative models at the cellular and global ecosystem scales. This project aims to develop new biomonitoring technologies, which combined with these models, will enable assessment of the health of Australia's marine ecosystems.Read moreRead less
The dynamics of evolution: How horizontal gene transfer drives the diversification and adaptation of complex, bacterial communities. The genetic exchange between populations is a prerequisite for the long-term evolution of bacteria, however its short-term dynamics are largely unexplored. This project aims to define the temporal dynamics of gene transfer and how it shapes the genetic composition of entire bacterial communities. Using innovative DNA sequencing technologies and bioinformatics, This ....The dynamics of evolution: How horizontal gene transfer drives the diversification and adaptation of complex, bacterial communities. The genetic exchange between populations is a prerequisite for the long-term evolution of bacteria, however its short-term dynamics are largely unexplored. This project aims to define the temporal dynamics of gene transfer and how it shapes the genetic composition of entire bacterial communities. Using innovative DNA sequencing technologies and bioinformatics, This project aims to offer a significant new understanding of the short-term diversification of communities and how different evolutionary forces shape bacterial function. It will show how bacterial systems can adapt to new environmental conditions and the effect on essential ecosystem functions.Read moreRead less
Chemical warfare in the marine environment: the role of surface-associated bacteria and their antibiotics. Antibiotics from natural sources are an essential part of modern medicine, however their function in the environment is poorly understood. This project aims to define how antibiotic-producing bacteria from marine macroalgae determine ecological interactions on the micro- and macro-biological level. This work will combine innovative approaches in microbial and chemical analysis to provide in ....Chemical warfare in the marine environment: the role of surface-associated bacteria and their antibiotics. Antibiotics from natural sources are an essential part of modern medicine, however their function in the environment is poorly understood. This project aims to define how antibiotic-producing bacteria from marine macroalgae determine ecological interactions on the micro- and macro-biological level. This work will combine innovative approaches in microbial and chemical analysis to provide insights into how antibiotics influence microbial communities and how this impacts on macroalgal health. The outcomes of this project will answer the fundamental question of the impact of antibiotics in natural systems and the role of antibiotic-producing bacteria in safeguarding important habitat-forming macroalgae against environmental stress.Read moreRead less