Investigating why malaria parasites have a unique translocon. This project aims to explore the mechanism that enables malaria parasites to thrive in their host cells. Parasites that cause the disease malaria reside inside erythrocytes, a very basic cell that lacks a vesicular trafficking pathway. To survive and thrive in this environment, the parasite has evolved a completely unique cell biological phenomenon termed PTEX to transport its proteins into the host cell. The aim of this project is to ....Investigating why malaria parasites have a unique translocon. This project aims to explore the mechanism that enables malaria parasites to thrive in their host cells. Parasites that cause the disease malaria reside inside erythrocytes, a very basic cell that lacks a vesicular trafficking pathway. To survive and thrive in this environment, the parasite has evolved a completely unique cell biological phenomenon termed PTEX to transport its proteins into the host cell. The aim of this project is to determine how this novel PTEX machinery exports proteins into erythrocytes and whether PTEX is also required for parasite survival during the initial stages of a host infection when malaria reside in hepatocytes.Read moreRead less
Targeted isolation of specific marine bacterial species associated with higher organsims for the purpose of discovering new antimicrobial compounds. Specific bacterial species that are commonly found in association with marine plants and animals often produce active secondary metabolites. The aim of this project is to apply our understanding of these bacterial-host associations to the targeted isolation of novel antimicrobials from the marine environment. While these new compounds will undoubted ....Targeted isolation of specific marine bacterial species associated with higher organsims for the purpose of discovering new antimicrobial compounds. Specific bacterial species that are commonly found in association with marine plants and animals often produce active secondary metabolites. The aim of this project is to apply our understanding of these bacterial-host associations to the targeted isolation of novel antimicrobials from the marine environment. While these new compounds will undoubtedly have a number of commercial applications this project focuses on the development of products for dental hygiene in animals. Generally, the urgent need for new antimicrobial compounds to combat the growing number of microbes that are resistant to current antibiotics highlights the importance of this project.Read moreRead less
Investigating pathways of lipoglycan formation in the bacterial cell wall. This project aims to investigate how the complex cell walls of Mycobacteria and Corynebacteria are assembled. The project will utilise a combination of genetic, biochemical and advanced analytical approaches to investigate individual steps in the synthesis of key cell wall components and understand how the assembly of these components is coordinated with bacterial growth. Important outcomes of this research will be detail ....Investigating pathways of lipoglycan formation in the bacterial cell wall. This project aims to investigate how the complex cell walls of Mycobacteria and Corynebacteria are assembled. The project will utilise a combination of genetic, biochemical and advanced analytical approaches to investigate individual steps in the synthesis of key cell wall components and understand how the assembly of these components is coordinated with bacterial growth. Important outcomes of this research will be detailed information on processes that regulate the growth of bacteria with important biotechnology, veterinary and medical significance, as well as information on mechanisms of cell wall synthesis that may be conserved in all bacteria.Read moreRead less
The host specificity of bacterial pathogens. The vast majority of microorganisms that cause diseases in animals are host specific. In other words, they cause disease exclusively in a particular animal species, but are harmless for others. Despite considerable recent advances in our understanding of the mechanisms used by microorganisms in general to cause disease, in most cases the underlying basis of host-specificity is not known. In this project, we will use two animal pathogens, rabbit-spe ....The host specificity of bacterial pathogens. The vast majority of microorganisms that cause diseases in animals are host specific. In other words, they cause disease exclusively in a particular animal species, but are harmless for others. Despite considerable recent advances in our understanding of the mechanisms used by microorganisms in general to cause disease, in most cases the underlying basis of host-specificity is not known. In this project, we will use two animal pathogens, rabbit-specific enteropathogenic E. coli and the closely related bacterium, Citrobacter rodentium, which specifically infect rabbits and mice respectively, to investigate the molecular basis of host specificity.Read moreRead less
An interdisciplinary approach to host-pathogen interactions in infection. This project aims to understand the molecular and cellular interactions between host and parasite, as well as providing a quantitative framework for analysing infection dynamics in other systems. Infection involves a complex interaction between the host and the parasite, which is very dynamic and therefore difficult to study by traditional sampling and analysis approaches. This project has combined mathematical modelling w ....An interdisciplinary approach to host-pathogen interactions in infection. This project aims to understand the molecular and cellular interactions between host and parasite, as well as providing a quantitative framework for analysing infection dynamics in other systems. Infection involves a complex interaction between the host and the parasite, which is very dynamic and therefore difficult to study by traditional sampling and analysis approaches. This project has combined mathematical modelling with a novel experimental protocol to allow the study of kinetics of parasite replication in vivo. Expected outcomes will provide significant benefits, such as new avenues for vaccination and immune intervention.Read moreRead less
Structural Characterisation of the Type IX Secretion System. The Type IX Secretion System present in diverse bacteria of veterinary, agricultural, environmental and industrial importance enables effector proteins to be secreted and attached to the cell surface where they contribute to disease pathogenesis or degrade biopolymers of commercial interest. This project aims to determine the structure and assembly mechanism of this complex secretion nanomachine comprising 15 different proteins using s ....Structural Characterisation of the Type IX Secretion System. The Type IX Secretion System present in diverse bacteria of veterinary, agricultural, environmental and industrial importance enables effector proteins to be secreted and attached to the cell surface where they contribute to disease pathogenesis or degrade biopolymers of commercial interest. This project aims to determine the structure and assembly mechanism of this complex secretion nanomachine comprising 15 different proteins using state of the art microscopy. Knowledge of the structure will greatly enhance our understanding of secretion mechanisms and our ability to both inhibit the system to treat disease in animals or manipulate the system for industrial applications providing future economic and environmental benefits to our nation.Read moreRead less
How does Clostridium perfringens carry multiple closely related plasmids? The project aims to determine how bacteria are able to replicate and maintain multiple copies of very closely related extrachromosomal elements or plasmids in the same cell. These plasmids are important as they encode toxin genes and antibiotic resistance genes. The project proposes to examine two fundamental hypotheses that are postulated to explain this novel phenomenon. The anticipated outcome of the project is the adva ....How does Clostridium perfringens carry multiple closely related plasmids? The project aims to determine how bacteria are able to replicate and maintain multiple copies of very closely related extrachromosomal elements or plasmids in the same cell. These plasmids are important as they encode toxin genes and antibiotic resistance genes. The project proposes to examine two fundamental hypotheses that are postulated to explain this novel phenomenon. The anticipated outcome of the project is the advancement of fundamental knowledge of how bacteria that cause disease in food-production animals can maintain the genetic elements that enable them to cause these diseases. This would contribute to our understanding of the epidemiology of these economically significant animal pathogens and may support the development of new methods of prevention or treatment.Read moreRead less
Novel Babesia proteins and their roles in the pathogenesis of tick fever. This project aims at gaining a deep understanding of the biology of Babesia parasites and how they cause tick fever in cattle. The project expects to discover novel parasite proteins involved in the development and persistence of tick fever and identify their functional role in infection. The main expected outcome is the discovery of parasite proteins that are critical for infection and pathogenesis of cattle tick fever. T ....Novel Babesia proteins and their roles in the pathogenesis of tick fever. This project aims at gaining a deep understanding of the biology of Babesia parasites and how they cause tick fever in cattle. The project expects to discover novel parasite proteins involved in the development and persistence of tick fever and identify their functional role in infection. The main expected outcome is the discovery of parasite proteins that are critical for infection and pathogenesis of cattle tick fever. The findings will contribute to the development of future novel vaccines to control tick fever, with significant economic benefits for the beef and dairy industries worldwide.Read moreRead less
Bacterial vesicles transport their bioactive cargo to the host nucleus. This project aims to investigate how bacterial membrane vesicles transport their cargo to the nucleus of cells and its impact on host cell functions. Bacteria use membrane vesicles as a means of communication with the host, but the full extent of their effects on host cells has yet to be fully elucidated. This project expects to generate new knowledge in the field using cutting-edge imaging and molecular biology approaches. ....Bacterial vesicles transport their bioactive cargo to the host nucleus. This project aims to investigate how bacterial membrane vesicles transport their cargo to the nucleus of cells and its impact on host cell functions. Bacteria use membrane vesicles as a means of communication with the host, but the full extent of their effects on host cells has yet to be fully elucidated. This project expects to generate new knowledge in the field using cutting-edge imaging and molecular biology approaches. The work should provide significant benefits, particularly towards the development of membrane vesicles in gene therapy, gene editing and other applications. Read moreRead less
Identifying Novel Biosynthetic Pathways in Mycobacteria using DNA Microarray Technology. DNA microarrays are a powerful new bioinformatics-based technology and an ideal tool for characterising complex biosynthetic pathways since the expression of all genes in the bacterial genome can be monitored in a single experiment. In this project we aim to construct and use a DNA microarray to identify novel biosynthetic pathways in mycobacteria. Of particular interest are pathways used to create compone ....Identifying Novel Biosynthetic Pathways in Mycobacteria using DNA Microarray Technology. DNA microarrays are a powerful new bioinformatics-based technology and an ideal tool for characterising complex biosynthetic pathways since the expression of all genes in the bacterial genome can be monitored in a single experiment. In this project we aim to construct and use a DNA microarray to identify novel biosynthetic pathways in mycobacteria. Of particular interest are pathways used to create components of the highly complex and poorly characterised cell wall. Since this structure is unique in the bacterial world, we expect to identify and characterise pathways that are unique to mycobacteria.Read moreRead less