Molecular tools for understanding, predicting and managing flowering and reproductive development in Brassica oleracea. This project integrates basic research with application to a significant horticultural industry, building on Australia's position as a leader in world research on molecular and genetic regulation of flowering. The project will strengthen Australia's research reputation in this field, provide new tools for cultivar screening in and management of B. oleracea seed crops. The proj ....Molecular tools for understanding, predicting and managing flowering and reproductive development in Brassica oleracea. This project integrates basic research with application to a significant horticultural industry, building on Australia's position as a leader in world research on molecular and genetic regulation of flowering. The project will strengthen Australia's research reputation in this field, provide new tools for cultivar screening in and management of B. oleracea seed crops. The project will deliver training for 3 PhD students at the interface between basic and applied research. A shortage of skilled scientists with ability to link understanding of plant development at the molecular/genetic level with improved crop management practices has been identified by the horticultural sector as a major challenge. Read moreRead less
The role of phytotoxins in ray blight disease of pyrethrum and significance of toxin tolerance to disease resistance. Ray blight disease, caused by Phoma ligulicola, is the greatest threat to the Australian pyrethrum industry causing $2.0M in annual losses. We aim to clarify the pathology of P.ligulicola in pyrethrum, focussing on the role of fungal toxins during infection. Toxin importance in disease will be determined through histology and induction of toxin- pathogen mutants. Toxins will be ....The role of phytotoxins in ray blight disease of pyrethrum and significance of toxin tolerance to disease resistance. Ray blight disease, caused by Phoma ligulicola, is the greatest threat to the Australian pyrethrum industry causing $2.0M in annual losses. We aim to clarify the pathology of P.ligulicola in pyrethrum, focussing on the role of fungal toxins during infection. Toxin importance in disease will be determined through histology and induction of toxin- pathogen mutants. Toxins will be characterised and used in tissue culture to select obtain toxin tolerant pyrethrum clones that will be evaluated for agronomic performance and disease resistance. Successful development of resistant clones will decrease production costs, minimise risk of fungicide resistance development and reduce environmental pollution.Read moreRead less
Reducing environmental footprint by improving phosphorous use efficiency. While modern agriculture relies heavily on the use of phosphorous fertilizers, most of them are not used by plants and lost in runoff, resulting in a massive environmental damage through contamination of waterways (termed eutrophication). This project takes advantage of an untapped resource - a unique collection of Tibetan wild barley genotypes, to reveal key traits that confer superior phosphorus use efficiency in wild ba ....Reducing environmental footprint by improving phosphorous use efficiency. While modern agriculture relies heavily on the use of phosphorous fertilizers, most of them are not used by plants and lost in runoff, resulting in a massive environmental damage through contamination of waterways (termed eutrophication). This project takes advantage of an untapped resource - a unique collection of Tibetan wild barley genotypes, to reveal key traits that confer superior phosphorus use efficiency in wild barley and identify appropriate candidate genes and their position on chromosomes for further incorporating these traits into commercial barley cultivars. This will reduce the environmental footprint of modern agricultural practices on terrestrial and aquatic ecosystems without compromising food security.Read moreRead less
Understanding the evolution of fungicide resistance for durable control of fungal pathogens in pyrethrum. The pyrethrum plant is grown for the extraction of natural insecticidal pyrethrins used in a variety of pest control products. Australia supplies 60 per cent of the global market for natural pyrethrins. Fungal pathogens of pyrethrum can cause severe losses. This project will investigate fungicide resistance in these pathogens at the molecular level.
Epidemiology of Phoma spp. complex and other foliar pathogens affecting pyrethrum. We will quantify the spectrum of fungal plant pathogens found on pyrethrum (Tanacetum cineariifolium L.) foliage and their relative impact on yield and pyrethrin assay. For those fungi having a significant impact on production (such as Phoma ligulicola) we will conduct detailed epidemiological studies to determine how disease levels change with environmental parameters and geographical factors. This study will a ....Epidemiology of Phoma spp. complex and other foliar pathogens affecting pyrethrum. We will quantify the spectrum of fungal plant pathogens found on pyrethrum (Tanacetum cineariifolium L.) foliage and their relative impact on yield and pyrethrin assay. For those fungi having a significant impact on production (such as Phoma ligulicola) we will conduct detailed epidemiological studies to determine how disease levels change with environmental parameters and geographical factors. This study will adapt radiometric technology for disease assessment in pyrethrum, and develop predictive models for disease development based on environmental conditions and furthermore, assess the effect of simulated climate change events on disease severity in the future.Read moreRead less
Towards a durable management strategy for ray blight in Tasmanian pyrethrum crops. This project will take a multi-factorial approach to the identification of edaphic factors and their collinearity for the prediction of foliar disease caused by the fungus, Phoma ligulicola in Tasmanian pyrethrum crops. This will allow implementation of a decision support system whereby disease management options may be weighed against site specific risk. Alternative management strategies to the current fungicid ....Towards a durable management strategy for ray blight in Tasmanian pyrethrum crops. This project will take a multi-factorial approach to the identification of edaphic factors and their collinearity for the prediction of foliar disease caused by the fungus, Phoma ligulicola in Tasmanian pyrethrum crops. This will allow implementation of a decision support system whereby disease management options may be weighed against site specific risk. Alternative management strategies to the current fungicide based system for control will also be assessed for their efficacy and role in mitigating site risk. The effect of cultural control methods such as cultivar mixtures and host resistance will be modelled on the spatio-temporal characteristics of the epidemic and compared to these in naturally occurring epidemics at specific sites.Read moreRead less
Integrated biological control of Sclerotinia minor root rot of pyrethrum crops. Tasmania is a major global supplier of natural pyrethrum, producing 25% of the world's requirements. However the industry has a major problem with Sclerotinia minor, current chemical treatment being expensive and providing limited effectiveness. The aim of this project is to develop long term integrated control measures for this disease, particularly by the application of biological control agents targeting S. minor ....Integrated biological control of Sclerotinia minor root rot of pyrethrum crops. Tasmania is a major global supplier of natural pyrethrum, producing 25% of the world's requirements. However the industry has a major problem with Sclerotinia minor, current chemical treatment being expensive and providing limited effectiveness. The aim of this project is to develop long term integrated control measures for this disease, particularly by the application of biological control agents targeting S. minor at planting. It will also examine possible break-crops biocidal to the fungus, and other integrated control measures. The significance/outcomes will be improved crop productivity to the industry, improved competitiveness with overseas producers and reduced dependence on chemical pesticides.Read moreRead less
Investigation of the impact of malt haze active proteins to improve brewing efficiency and beer quality. Australia is a major world exporter of malting barley (~2 millon t/pa) and malt (600,000 t/pa), primarily to the rapidly expanding Asian economic development region. An additional 200,000 t/pa of malt is provided to the Australian domestic brewing industry. By improving the quality of Australian malting barley and optimising the cost of brewery colloidal stabilisation measures, we expect hi ....Investigation of the impact of malt haze active proteins to improve brewing efficiency and beer quality. Australia is a major world exporter of malting barley (~2 millon t/pa) and malt (600,000 t/pa), primarily to the rapidly expanding Asian economic development region. An additional 200,000 t/pa of malt is provided to the Australian domestic brewing industry. By improving the quality of Australian malting barley and optimising the cost of brewery colloidal stabilisation measures, we expect higher demand and prices for Australian malting barley and malt. This will help support the viability of rural communities and the value adding involved in the malting and brewing of their produce in Australia.Read moreRead less
Barley malt modification, its control by understanding the biochemistry and genetics of proteases and thioredoxin. Australia is a major world exporter of malting barley (~2 millon t/pa) and malt (800,000 t/pa), primarily to the rapidly expanding Asian economic development region. An additional 200,000 t/pa of malt is provided to the Australian domestic brewing industry. By improving the quality of Australian malting barley and optimising its production, we expect higher demand and prices for A ....Barley malt modification, its control by understanding the biochemistry and genetics of proteases and thioredoxin. Australia is a major world exporter of malting barley (~2 millon t/pa) and malt (800,000 t/pa), primarily to the rapidly expanding Asian economic development region. An additional 200,000 t/pa of malt is provided to the Australian domestic brewing industry. By improving the quality of Australian malting barley and optimising its production, we expect higher demand and prices for Australian malting barley and malt. This will help support the viability of rural communities and the value adding involved in the malting and brewing of their produce in Australia.Read moreRead less
Phytochemistry Of Thrips Resistance In Potato And Its Influence On Acquisition And Transmission Of Tomato Spotted Wilt Virus. TSWV causes multi-million dollar losses to the Australian potato industry, which is the countries largest and most valuable vegetable commodity and an important source of income and employment for rural communities. Development of TSWV epidemics relies on the activity of vector thrips acquiring virus from infected plants and transmitting it to healthy potatoes. Deployment ....Phytochemistry Of Thrips Resistance In Potato And Its Influence On Acquisition And Transmission Of Tomato Spotted Wilt Virus. TSWV causes multi-million dollar losses to the Australian potato industry, which is the countries largest and most valuable vegetable commodity and an important source of income and employment for rural communities. Development of TSWV epidemics relies on the activity of vector thrips acquiring virus from infected plants and transmitting it to healthy potatoes. Deployment of thrips resistant potato would greatly assist disease control. This project will determine the efficacy of thrips resistance in reducing TSWV epidemics and identify the chemical basis of resistance, which could be used as a screening tool for potato breeding, and could form the basis of a synthetic chemical tool for thrips prevention in potato and other crops.Read moreRead less