Discovery Early Career Researcher Award - Grant ID: DE120102166
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Identification and characterisation of anti-viral immune response genes in mosquitoes. Emerging viral diseases, transmitted by mosquito bite, present an increasing public health risk globally. Most research to date has neglected the infection dynamic in the insect vector. This project aims to characterise the defensive response of mosquitoes to viral infection, a potentially crucial factor in the epidemiology of vector-borne disease.
Bio-engineering Insect-Specific Flaviviruses for control of arboviruses. This project aims to study a family of commensal viruses of mosquitoes called insect-specific flaviviruses that are naturally found in mosquitoes and do not infect or cause disease in vertebrate hosts. Using an innovative approach, this project employs cutting-edge molecular virology approaches to modify these insect-specific flaviviruses to enhance their ability to block the replication of other pathogenic viruses in the m ....Bio-engineering Insect-Specific Flaviviruses for control of arboviruses. This project aims to study a family of commensal viruses of mosquitoes called insect-specific flaviviruses that are naturally found in mosquitoes and do not infect or cause disease in vertebrate hosts. Using an innovative approach, this project employs cutting-edge molecular virology approaches to modify these insect-specific flaviviruses to enhance their ability to block the replication of other pathogenic viruses in the mosquito vector. Expected outcome of this project is a bio-control strategy that is complementary to the Wolbachia approach. The anticipated benefits include the advancement of knowledge of insect-specific flaviviruses, and promotion of interdisciplinary research across the fields of Entomology and Virology.Read moreRead less
Predictive Models & Decision Support Systems for Virus Diseases and Aphid Vectors of Lupin and Canola. Aphids and the viruses they transmit cause major economic losses in legume and canola crops in Australia. This project will develop innovative predictive models and decision support systems (DSS's) for Beet western yellows virus and direct aphid feeding damage in canola and two types of Bean yellow mosaic virus in lupin, and a DSS for direct aphid feeding damage in lupin. These models will gr ....Predictive Models & Decision Support Systems for Virus Diseases and Aphid Vectors of Lupin and Canola. Aphids and the viruses they transmit cause major economic losses in legume and canola crops in Australia. This project will develop innovative predictive models and decision support systems (DSS's) for Beet western yellows virus and direct aphid feeding damage in canola and two types of Bean yellow mosaic virus in lupin, and a DSS for direct aphid feeding damage in lupin. These models will greatly improve understanding of factors driving virus epidemics and aphid outbreaks. Following extensive validation with data previously collected in the WA grainbelt, the predictive models and DSS's will be extended to end-users, resulting in considerable productivity gains, reduced costs and environmental benefits.Read moreRead less
Antimicrobial defences in the evolution of sociality. Disease microorganisms were probably important selective agents during the evolution of most species. Social insects, the ants, bees, wasps and termites, may have been especially vulnerable because their colonies contain large numbers of closely related individuals living in close proximity; ideal conditions for contagious diseases. We will explore the evolution of antimicrobial defences in social insects and related groups. Social insects ....Antimicrobial defences in the evolution of sociality. Disease microorganisms were probably important selective agents during the evolution of most species. Social insects, the ants, bees, wasps and termites, may have been especially vulnerable because their colonies contain large numbers of closely related individuals living in close proximity; ideal conditions for contagious diseases. We will explore the evolution of antimicrobial defences in social insects and related groups. Social insects are important ecologically and economically and understanding their relationships with microbial diseases will facilitate their conservation and control. Knowledge of these interactions may also prove useful to human societies becoming increasingly vulnerable to disease.Read moreRead less
Understanding the mechanism of Wolbachia-mediated antiviral protection. Insects are involved in the transmission of many viral diseases of both plants and animals. A considerable number of these diseases have adverse effects for public health or cause large economic losses in agriculture. We were the first to discover that a common bacteria protects insects from virus infection. Knowledge of the mechanisms used by the bacteria to interfere with virus accumulation will facilitate novel strategies ....Understanding the mechanism of Wolbachia-mediated antiviral protection. Insects are involved in the transmission of many viral diseases of both plants and animals. A considerable number of these diseases have adverse effects for public health or cause large economic losses in agriculture. We were the first to discover that a common bacteria protects insects from virus infection. Knowledge of the mechanisms used by the bacteria to interfere with virus accumulation will facilitate novel strategies for control of virus disease. The findings of this project will enable Australian researchers and industry to design innovative approaches to control diseases that are transmitted by insects.Read moreRead less
Antimicrobial Defences and Evolution of Sociality. Microbial diseases threaten all societies, human or otherwise. Insect societies present ideal conditions for contagious disease, specifically crowding of closely related individuals. We propose a gradient in the strength and breadth of antimicrobial defences from the solitary to the social condition and this is correlated with increasing crowding and decreasing genetic diversity. To test this hypothesis, we compare the microbial environments o ....Antimicrobial Defences and Evolution of Sociality. Microbial diseases threaten all societies, human or otherwise. Insect societies present ideal conditions for contagious disease, specifically crowding of closely related individuals. We propose a gradient in the strength and breadth of antimicrobial defences from the solitary to the social condition and this is correlated with increasing crowding and decreasing genetic diversity. To test this hypothesis, we compare the microbial environments of nests and colonies, and the antimicrobial mechanisms, of solitary, semi-social and social insects. Outcomes from this research on disease regulation will inform the use, management and conservation of these economically and ecologically important animals.Read moreRead less
Development of symbiont based approaches to pest and disease control in sugarcane. This project aims to develop a new approach to the control of insect damage to sugarcane in Australia. It focuses on the manipulation of bacteria that are intimately associated with insects that feed on sugarcane, so as to decrease their ability to cause crop damage both directly through feeding and indirectly through the transmission of disease