Understanding the underlying causes and practical management solutions to marri (Corymbia calophylla) decline in the south west of Western Australia. Tree declines threaten forests across much of Australia and efficient methods to understand and manage the causes are urgently needed. We will test a step-wise multidisciplinary model to determine the causes of marri (Corymbia calophylla) decline, which is currently threatening important ecosystem functions and biodiversity.
Expression profiling of giant cells induced in host plant roots by root-knot nematodes. Root-knot nematodes cause crop losses of over $400 million per annum in Australia. Control by toxic chemical nematicodes is expensive and can pollute groundwater. Benefits from this research for the Australian community are: (i) it will ensure that Australian researchers stay at the forefront of research in plant nematology, (ii) it provides significant local and international linkages that will stimulate res ....Expression profiling of giant cells induced in host plant roots by root-knot nematodes. Root-knot nematodes cause crop losses of over $400 million per annum in Australia. Control by toxic chemical nematicodes is expensive and can pollute groundwater. Benefits from this research for the Australian community are: (i) it will ensure that Australian researchers stay at the forefront of research in plant nematology, (ii) it provides significant local and international linkages that will stimulate research outputs, and (iii) new knowledge will be generated on how plants respond to attack by nematodes - this will generate new intellectual property, leading to better control methods and reduced costs that will support rural communities, and reduce environmental pollution.Read moreRead less
Factors responsible for host resistance to the pathogen Sclerotinia sclerotiorum for developing effective disease management in vegetable brassicas. Through successful identification of host resistance in vegetable Brassicas to Sclerotinia sclerotiorum and determining the factors associated with this resistance, breeders, for the first time, will be able to develop varieties with resistance against this difficult-to-manage pathogen. Benefits include prevention of severe losses in vegetable Bras ....Factors responsible for host resistance to the pathogen Sclerotinia sclerotiorum for developing effective disease management in vegetable brassicas. Through successful identification of host resistance in vegetable Brassicas to Sclerotinia sclerotiorum and determining the factors associated with this resistance, breeders, for the first time, will be able to develop varieties with resistance against this difficult-to-manage pathogen. Benefits include prevention of severe losses in vegetable Brassicas from Sclerotinia, and more viable and sustainable production with less reliance upon fungicides and toxic or ineffective fumigants. This research addresses the National Research Priority, an environmentally sustainable Australia, and the priority goal transforming existing industries, and will particularly benefit Australian horticultural communities.Read moreRead less
Assessing plant virus threats to indigenous Western Australian flora: implications for biodiversity, conservation, ecosystem reclamation and the wildflower industry. Australia's unique flora is a valuable asset, not only in terms of aesthetic value, ecotourism, commercial floriculture, the environment and rural communities, but also in relation to water quality, a sink for carbon, and a source for novel medicinal chemicals. The threat posed by plant viruses to native flora has largely been igno ....Assessing plant virus threats to indigenous Western Australian flora: implications for biodiversity, conservation, ecosystem reclamation and the wildflower industry. Australia's unique flora is a valuable asset, not only in terms of aesthetic value, ecotourism, commercial floriculture, the environment and rural communities, but also in relation to water quality, a sink for carbon, and a source for novel medicinal chemicals. The threat posed by plant viruses to native flora has largely been ignored, but with global climate change, virus infection will become increasingly important. This study will document the role of plant viruses in the sustainability of Australia's floral heritage and industries, and develop strategies to limit virus spread through plant nurseries, rehabilitation of degraded ecosystems and conservation of threatened species.Read moreRead less
Is water deficit the predisposing factor associated with Agonis flexuosa (WA peppermint) decline in Western Australia? The incidence and severity of tree decline across species is now widespread in southern Western Australia. There is increasing concern about their management by agencies, landowners and the community, due to the loss of aesthetics, biodiversity and ecosystem services. This project will provide remote sensing tools to monitor peppermint health and relate declines to abiotic and b ....Is water deficit the predisposing factor associated with Agonis flexuosa (WA peppermint) decline in Western Australia? The incidence and severity of tree decline across species is now widespread in southern Western Australia. There is increasing concern about their management by agencies, landowners and the community, due to the loss of aesthetics, biodiversity and ecosystem services. This project will provide remote sensing tools to monitor peppermint health and relate declines to abiotic and biotic factors. An understanding of how water abstraction for urban development and declining rainfall predispose trees to decline, and the application of thinning regimes, fungicides and nutrient implants will provide potential tools to the wider community that can be used to manage tree health.Read moreRead less
In touch with the environment: dissecting early tactile responses in plants. This project aims to identify the regulatory mechanisms that control touch-responses in plants. Although plants cannot relocate in the face of danger, they are able to sense mechanical manipulations from the environment. These could be caused by pathogens, herbivores, rain or even wind. This touch-responsiveness of plants is essential for pathogen resistance and for triggering architectural changes to overcome obstacles ....In touch with the environment: dissecting early tactile responses in plants. This project aims to identify the regulatory mechanisms that control touch-responses in plants. Although plants cannot relocate in the face of danger, they are able to sense mechanical manipulations from the environment. These could be caused by pathogens, herbivores, rain or even wind. This touch-responsiveness of plants is essential for pathogen resistance and for triggering architectural changes to overcome obstacles and prevent mechanical damage. Using a comprehensive tool set of genetics, genomics and proteomics, this project aims to identify the upstream regulators that control touch responses. Furthermore, it is expected to expand our understanding of the physiological impacts of touch-responses on growth and stress tolerance.Read moreRead less
Building better Brassicas: Understanding disease resistance mechanisms across the Brassicaceae. Brassica species are important crops producing cooking oil, vegetables and biofuel, grown in diverse environments with a high economic and export value. Blackleg disease, caused by the fungus Leptospheria maculans, is the most important disease of brassica crops world-wide. The newly available brassica genome sequence provides the resources to study the co-evolution of this plant and pathogen. This pr ....Building better Brassicas: Understanding disease resistance mechanisms across the Brassicaceae. Brassica species are important crops producing cooking oil, vegetables and biofuel, grown in diverse environments with a high economic and export value. Blackleg disease, caused by the fungus Leptospheria maculans, is the most important disease of brassica crops world-wide. The newly available brassica genome sequence provides the resources to study the co-evolution of this plant and pathogen. This project will characterise the evolution and conservation of resistance genes in wild and cultivated brassicas, using next-generation sequencing technology, to assess their potential for crop improvement. An understanding of the evolution of genes responsible for resistance will lead to improved plant protection strategies for brassica crops.Read moreRead less