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The identification of Mycosphaerella graminicola effectors that promote pathogenicity on wheat. Fungal diseases are one of the greatest challenges to sustainable wheat production in the 21st century. Septoria tritici blotch is one such disease as it inflicts millions of tonnes in yield losses per annum. This project will identify the molecular basis of Septoria tritici blotch and assess its potential as an Australian biosecurity threat.
Evolving with sexually transmitted infections. This project aims to understand how sexually transmitted infections (STIs) affect the evolution of host mating systems. STIs threaten the health of most sexually-reproducing organisms. In evolutionary terms, their mode of transmission imposes distinct selection patterns on hosts. This project will use an Australian beetle and its sexually transmitted mite to investigate how STIs lead to evolutionary changes in host mating behaviour and explore the g ....Evolving with sexually transmitted infections. This project aims to understand how sexually transmitted infections (STIs) affect the evolution of host mating systems. STIs threaten the health of most sexually-reproducing organisms. In evolutionary terms, their mode of transmission imposes distinct selection patterns on hosts. This project will use an Australian beetle and its sexually transmitted mite to investigate how STIs lead to evolutionary changes in host mating behaviour and explore the genetic basis for STI resistance. This project is expected to affect the evolution of host mating biology and lead to sex-specific optimal levels of disease resistance, which can influence disease dynamics and host-disease coevolution.Read moreRead less
What drives parasite spread through social networks: lessons from lizards. Australia's biodiversity is continually threatened by new epidemics of local and foreign diseases and parasites. This project will enhance our understanding of how these diseases spread, allowing more effective controls to be developed to protect wildlife species, animal populations and, ultimately, Australian ecosystems.
Parasite transmission through social networks in the pygmy bluetongue lizard. Australia's biodiversity is continually threatened by new epidemics of diseases and parasites, some local, others from overseas. This project will provide information on how they spread so that more effective management of these diseases can be developed to protect wildlife species, animal populations and, ultimately, Australian ecosystems.
Factors causing wheat stripe rust epidemics. This project aims to tackle wheat stripe rust, one of the most important fungal diseases of wheat in Australia, causing losses of up to $125 million a year. This project expects to gain insights into the fungal evolution and the molecular mechanism that causes hyper-virulent pathogen isolates. The expected outcome is to identify and characterise multiple genetic factors in the pathogen that contribute to wheat stripe rust epidemics in Australia. This ....Factors causing wheat stripe rust epidemics. This project aims to tackle wheat stripe rust, one of the most important fungal diseases of wheat in Australia, causing losses of up to $125 million a year. This project expects to gain insights into the fungal evolution and the molecular mechanism that causes hyper-virulent pathogen isolates. The expected outcome is to identify and characterise multiple genetic factors in the pathogen that contribute to wheat stripe rust epidemics in Australia. This project will contribute to improved disease management strategies to contain wheat stripe rust, resulting in higher wheat yields, reduced application of fungicides and increased revenue for Australian wheat farmers.Read moreRead less
White Spot Syndrome Virus (WSSV) Preparedness For Biosecurity Awareness And Adoption Of Best Practice By The NSW And QLD Wild Catch Commercial Fishers - Understanding What Extension Pathways Work Best
Funder
Fisheries Research and Development Corporation
Funding Amount
$84,000.00
Summary
Objectives: 1. Develop appropriate extension material to reduce the risk of spread of WSSV from the control zone to the non control zones in QLD and NSW. 2. To quantify best extension practice for biosecurity for the commercial wild catch fishers. 3. To, where possible, utilise existing extension material developed by Biosecurity Queensland for the commercial wild catch fishery.
Field Observations And Assessment Of The Response To An Outbreak Of White Spot Disease (WSD) In Black Tiger Prawns (Penaeus Monodon) Farmed On The Logan River In November 2016
Funder
Fisheries Research and Development Corporation
Funding Amount
$52,663.15
Summary
Objectives: 1. Undertake assessment on the causative factors for the outbreak of WSD in the prawn farms in the Logan River region 2. Provide technical advice to APFA, QSIA, ACPF, Sunfish, ARFF and FRDC on the technical information arising from the eradication program for WSD 3. Undertake research and sampling for later assessment on how to improve the management of WSD and its erradication
The Prevention Of Occupationally-related Infections In Western Rock Lobster Fishermen
Funder
Fisheries Research and Development Corporation
Funding Amount
$158,901.00
Summary
The incidence and severity of infection associated with WRL does not appear to have changed vastly since 1949, despite penicillin therapy and a heightened awareness of the infection by those in the industry. Infection may result in loss of working days. Severe cases may progess to more serious conditions such as septic arthritis and endocarditis, potentially life-threatening conditions. The inappropriate and unnecessary use of antibiotics is of great concern currently as antibiotic resistant ba ....The incidence and severity of infection associated with WRL does not appear to have changed vastly since 1949, despite penicillin therapy and a heightened awareness of the infection by those in the industry. Infection may result in loss of working days. Severe cases may progess to more serious conditions such as septic arthritis and endocarditis, potentially life-threatening conditions. The inappropriate and unnecessary use of antibiotics is of great concern currently as antibiotic resistant bacteria emerge world-wide. The emphasis is now on preventing infection rather than treating it with antibiotics when it does occur. More advanced techniques for the recovery and detection of E. rhusiopathiae have been developed, including the use of selective media and a molecular method. Further study of these infections, utilising more appropriate techniques, is warranted to determine the exact role that E. rhusiopathiae has in this infection. Also, the role of other organisms causing apparent infection in fishermen of all types needs to be evaluated. This will allow preventive strategies to be developed which will, in turn, result in less infection and reduced exposure to antibiotics. Objectives: 1. To determine the role that E.rhusiopathiae plays in "crayfish poisoning". 2. To determine the distribution of E.rhusiopathiae in the work environment 3. To develop interventions and strategies to reduce the incidence of "crayfish poisoning" Read moreRead less
Oyster Depuration: A Re-assessment Of Depuration Conditions And The Role Of Bacterial And Viral Indicators In Determining Depuration Effectiveness
Funder
Fisheries Research and Development Corporation
Funding Amount
$284,053.03
Summary
The NSW oyster industry has suffered severe economic losses during the past 20 years as the result of major outbreaks of gastroenteritis and other oyster-borne diseases. Further outbreaks will cripple the industry from immediate losses and resulting litigation.
There is an urgent need to re-examine the conditions for depuration of NSW oysters harvested in very different geographic and environmental conditions with particular reference to water temperature, salinity and turbidity during ....The NSW oyster industry has suffered severe economic losses during the past 20 years as the result of major outbreaks of gastroenteritis and other oyster-borne diseases. Further outbreaks will cripple the industry from immediate losses and resulting litigation.
There is an urgent need to re-examine the conditions for depuration of NSW oysters harvested in very different geographic and environmental conditions with particular reference to water temperature, salinity and turbidity during depuration. It is important to determine what limitations exist in the current technology and how they might affect purification efficiency and commercial acceptance by oyster farmers. In light of such information, there will be a need to modify the Code of Practice for Oyster Depuration. Equally important is the need to educate and train oyster farmers in proper quality assurance of oyster quality and safety, which will include optimal application of purification technology.
Current safety of oysters is assessed by the presence of E. coli as indicators of bacterial pathogens, yet the majority of oyster-borne disease is of viral origin, principally NV and more recently, HAV. Unfortunately, direct testing for human viruses in oysters is time consuming and very expensive, and will remain so for the foreseeable future. From the perspective of implementing a quality assurance program that will effectively protect public health, it is essential to have more accurate and more reliable indicator tests for the presence of human viruses in oysters. Consequently, there is a clear need to examine the relationship between the presence of bacterial indicators (E. coli), coliphages and human infectious viruses in oysters before, during and after purification. Such a study will not only clarify the behaviour of viruses during purification but could lead to a rapid coliphage assay as a more accurate indicator of human virus presence in oysters. Objectives: 1. To optimize the process of oyster depuration with respect to conditions of: initial load of contamination; water temperature, salinity, turbidity and oxygen content; oyster: water ratio; time of depuration; geographical location of oysters; and oyster eating quality. 2. Based on the findings from objective 1, and in consultation with the NSW Department of Health, NSW Fisheries and representatives of the oyster industry, develop and write modifications to the Code of Practice for the Depuration of Oysters in NSW. 3. In conjunction with the NSW Shellfish Quality Assurance Program, conduct a series of workshops aimed at education of farmers in management of the quality and safety of oysters. 4. Investigate the possibility of using bacteriophages as an additional indicator of oyster safety and the performance of oyster depuration, with specific reference to the elimination of human viruses such as Norwalk and Hepatitis A viruses. Correlate bacteriophage occurrence and behaviour in oysters during purification with traditional E. coli standards and human virus behaviour as measured by an inactivated strain of polio virus. Read moreRead less