The routes of infection with sheep scrapie and agents that cause related prion diseases. We will define the routes by which the infective agents for scrapie, a debilitating disease of sheep, reach the nervous system after being consumed with food. Scrapie is from the same disease group (prion diseases) as mad cow disease. There would be a large economic cost were prion diseases to infect agricultural animals in Australia, through bioterrorism or accident. An outbreak in sheep could ruin the indu ....The routes of infection with sheep scrapie and agents that cause related prion diseases. We will define the routes by which the infective agents for scrapie, a debilitating disease of sheep, reach the nervous system after being consumed with food. Scrapie is from the same disease group (prion diseases) as mad cow disease. There would be a large economic cost were prion diseases to infect agricultural animals in Australia, through bioterrorism or accident. An outbreak in sheep could ruin the industry, as our export markets would be immediately blocked, and thousands of animals would be killed to stop disease spread. The benefit of clearly understanding how the infective agents reach the nervous system is that this may lead to strategies to intervene, and thus limit the spread and seriousness of infection.Read moreRead less
New antiparasitics to protect Australian livestock. There is an urgent need for new antiparasitics to treat multi-drug resistant livestock infections. This project aims to explore the bacteria and fungi present in the microbiomes of heavily infected sheep faeces and pastures, challenging them with environmental cues, including those from associated parasites, to stimulate production of defensive chemicals hidden deep within their genomes. Enabled by an integrated pipeline of high throughput anal ....New antiparasitics to protect Australian livestock. There is an urgent need for new antiparasitics to treat multi-drug resistant livestock infections. This project aims to explore the bacteria and fungi present in the microbiomes of heavily infected sheep faeces and pastures, challenging them with environmental cues, including those from associated parasites, to stimulate production of defensive chemicals hidden deep within their genomes. Enabled by an integrated pipeline of high throughput analytical cultivation, molecular networking, and chemical and biological analyses, expected outcomes include an enhanced ability to explore and exploit valuable chemistry hidden within microbial genomes, leading to the discovery of new classes of natural antiparasitic to safeguard livestock.
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Flea Control by Immunological Intervention. Fleas are bloodsucking parasites that are the major cause of skin disease in pets. Currently, all available flea products rely upon chemical control and many have active components that have real or perceived health problems. Given that insect growth regulators do not kill adult fleas and pet owners are interested in using alternatives to insecticides, there is a clear need for a complementary form of flea control. We describe the novel use of Prote ....Flea Control by Immunological Intervention. Fleas are bloodsucking parasites that are the major cause of skin disease in pets. Currently, all available flea products rely upon chemical control and many have active components that have real or perceived health problems. Given that insect growth regulators do not kill adult fleas and pet owners are interested in using alternatives to insecticides, there is a clear need for a complementary form of flea control. We describe the novel use of Proteomic technology to identify flea proteins that are "switched on" during feeding and are specifically located in the gut. This project will enable the development of a vaccine that is systemic, kills adult fleas, is long-lasting and residue-free.Read moreRead less
Harnessing innate immunity to mitigate bovine respiratory disease. Bovine Respiratory Disease (BRD) is the most significant health problem faced by the beef industry worldwide, causing economic losses of up to $40 million annually in Australia alone. This Project aims to assess an immunostimulant for its ability to induce resistance to infection with bovine respiratory viruses associated with BRD. The Project is expected to generate fundamental new knowledge in veterinary virology. Expected outc ....Harnessing innate immunity to mitigate bovine respiratory disease. Bovine Respiratory Disease (BRD) is the most significant health problem faced by the beef industry worldwide, causing economic losses of up to $40 million annually in Australia alone. This Project aims to assess an immunostimulant for its ability to induce resistance to infection with bovine respiratory viruses associated with BRD. The Project is expected to generate fundamental new knowledge in veterinary virology. Expected outcomes include scholarly publications. The Project will provide significant benefits, such as advances to fundamental knowledge, training of higher research degree students and proof-of-concept data to promote collaborations with commercial partners to develop novel treatment strategies to limit BRD.Read moreRead less
Development of Novel Pesticidal Agents. We have discovered a family of naturally occurring plant proteins called the cyclotides that have potent insecticidal activity against Helicoverpa species, one of the major pests on cotton and corn in Australia and world wide. Preliminary evidence has shown that they also have activity against major pests to livestock in Australia, including sheep blowflies. To develop these proteins as potential pesticidal agents it is necessary to understand the struct ....Development of Novel Pesticidal Agents. We have discovered a family of naturally occurring plant proteins called the cyclotides that have potent insecticidal activity against Helicoverpa species, one of the major pests on cotton and corn in Australia and world wide. Preliminary evidence has shown that they also have activity against major pests to livestock in Australia, including sheep blowflies. To develop these proteins as potential pesticidal agents it is necessary to understand the structural basis for their activity. We will do this by chemically synthesising peptides with selected residues mutated to determine their effects on activity.Read moreRead less
Insecticide targets in the nervous system: Discovery and design for sustainable insect pest control. Insect pests impose massive costs in food production, in human health and in the wellbeing of our companion animals. Chemical insecticides remain a major weapon in the control of these pests, but the use of insecticides has some downsides. The way in which insecticides kill insects is poorly understood and insecticide usage has negative impacts in the environment – the persistence of chemical r ....Insecticide targets in the nervous system: Discovery and design for sustainable insect pest control. Insect pests impose massive costs in food production, in human health and in the wellbeing of our companion animals. Chemical insecticides remain a major weapon in the control of these pests, but the use of insecticides has some downsides. The way in which insecticides kill insects is poorly understood and insecticide usage has negative impacts in the environment – the persistence of chemical residues and the killing of beneficial insects along with the pests. Further, insects become resistant to insecticides, so pest control is lost. This proposed research seeks to identify the ‘achilles heal’ in insect pests and to target them with new generation insecticides to gain safe, effective and sustainable control.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101470
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Improving poultry health and performance through microbiota manipulations. The project aims to develop methods to modulate microbiota to improve poultry health and productivity and reduce the need for antibiotics. Probiotic administration is currently the only way in agriculture to restore imbalanced intestinal microbiota. Recent research shows that intestinal microbiota resist all new-coming bacteria and remove them from the intestinal environment. The initial inoculum at the time of birth shap ....Improving poultry health and performance through microbiota manipulations. The project aims to develop methods to modulate microbiota to improve poultry health and productivity and reduce the need for antibiotics. Probiotic administration is currently the only way in agriculture to restore imbalanced intestinal microbiota. Recent research shows that intestinal microbiota resist all new-coming bacteria and remove them from the intestinal environment. The initial inoculum at the time of birth shapes the gut microbiota for life and has the strongest influence on development of the immune system. Accordingly, at-hatch administration of proven beneficial strains to poultry is likely to ensure permanent colonisation with beneficial bacteria. This process would improve both the productivity and health of poultry and other agricultural animals.Read moreRead less
Development of environmentally-friendly insecticides for the Australian livestock industry. Many insects and other arthropods are serious pests of Australian livestock. Australian farmers spend about $300 million per annum on insecticides and acaricides, while Australian consumers spend more than $100 million annually on insecticides for use on pets and around the home and garden. Unfortunately, many of these arthropod pests have developed resistance to chemical insecticides. This aim of this re ....Development of environmentally-friendly insecticides for the Australian livestock industry. Many insects and other arthropods are serious pests of Australian livestock. Australian farmers spend about $300 million per annum on insecticides and acaricides, while Australian consumers spend more than $100 million annually on insecticides for use on pets and around the home and garden. Unfortunately, many of these arthropod pests have developed resistance to chemical insecticides. This aim of this research program is to develop a new generation of environmentally-friendly natural products that can be used to control arthropod pests on farms and around the home and garden.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200101832
Funder
Australian Research Council
Funding Amount
$425,941.00
Summary
Mechanisms of immune protection for infectious laryngotracheitis virus. This project aims to investigate the mechanisms of immune protection against infectious laryngotracheitis virus. This will be achieved by investigating the role of local and systemic immunity and the immune cells associated with long-term protection against disease. The mechanisms of protection against this virus remain unknown which impairs the development of efficacious vaccines. Expected outcomes of this project are a mor ....Mechanisms of immune protection for infectious laryngotracheitis virus. This project aims to investigate the mechanisms of immune protection against infectious laryngotracheitis virus. This will be achieved by investigating the role of local and systemic immunity and the immune cells associated with long-term protection against disease. The mechanisms of protection against this virus remain unknown which impairs the development of efficacious vaccines. Expected outcomes of this project are a more rational approach to vaccination resulting in the generation of more effective and safer vaccination strategies that should benefit our important poultry industry. Additionally, the new methodologies and knowledge on mucosal immune markers could be utilised for the study of other pathogens.Read moreRead less
Defining domains within Mycoplasma hyopneumoniae surface proteins that interact with host extracellular matrix: efficacy testing of candidate vaccines in swine. Over 90% of Australian commercial pig production facilities are affected by Mycoplasma hyopneumoniae, the causative agent of swine enzootic pneumonia. This disease causes economic losses in Australia of over $20 million per annum and up to $1 billion per annum in major swine rearing countries worldwide. This project will determine the p ....Defining domains within Mycoplasma hyopneumoniae surface proteins that interact with host extracellular matrix: efficacy testing of candidate vaccines in swine. Over 90% of Australian commercial pig production facilities are affected by Mycoplasma hyopneumoniae, the causative agent of swine enzootic pneumonia. This disease causes economic losses in Australia of over $20 million per annum and up to $1 billion per annum in major swine rearing countries worldwide. This project will determine the protective efficacy of new generation vaccines against M. hyopneumoniae, which aim to block the colonisation process and prevent disease .Read moreRead less