Regulation and expression of disease resistance responses in the Rhynchosporium secalis/barley interaction. The barley leaf scald fungus, Rhynchosporium secalis, causes annual losses of up to 10% in Australia's major export crop, barley. The primary aim of this project is to isolate and understand the interplay of genes specifically involved in the regulation of resistance to scald. Several resistance-specific genes will be functionally analysed to identify regulatory signalling pathways that li ....Regulation and expression of disease resistance responses in the Rhynchosporium secalis/barley interaction. The barley leaf scald fungus, Rhynchosporium secalis, causes annual losses of up to 10% in Australia's major export crop, barley. The primary aim of this project is to isolate and understand the interplay of genes specifically involved in the regulation of resistance to scald. Several resistance-specific genes will be functionally analysed to identify regulatory signalling pathways that link genetic expression with the specific gene-for-gene disease resistance phenotype. Knowledge of the genes controlling signalling processes within the disease-challenged plant will allow for the development of more effective and durable resistances by traditional breeding and transgenic approaches.Read moreRead less
Protecting cereal grain development at high temperatures. This project aims to investigate new temperature-responsive factors that regulate cereal grain development to protect grain production under heat stress. The new research will leverage international collaborations with access to cutting-edge genetic and technological resources, and refine novel X-ray imaging techniques in Australia, to observe how temperature affects flower structure and function in barley and rice. Favourable mutations t ....Protecting cereal grain development at high temperatures. This project aims to investigate new temperature-responsive factors that regulate cereal grain development to protect grain production under heat stress. The new research will leverage international collaborations with access to cutting-edge genetic and technological resources, and refine novel X-ray imaging techniques in Australia, to observe how temperature affects flower structure and function in barley and rice. Favourable mutations that optimise plant yield and fitness will be defined and explored in other, more complex, cereals such as wheat. Expected outcomes will be fundamental breakthroughs in understanding how plants respond to, and buffer, the effects of heat to lead to translational breeding strategies that bolster grain yield.Read moreRead less
Identifying novel salinity tolerance mechanisms by spatial and temporal analysis of lipids in barley. Agrifood production faces the dual challenges of an increasing world population and the threats of abiotic stresses arising from climate change and the erosion of arable land. Cereals, the major food crops, are poorly adapted to tolerate most abiotic stresses, including salinity. This project applies new technologies investigating spatial and temporal biochemical mechanisms a model cereal, Horde ....Identifying novel salinity tolerance mechanisms by spatial and temporal analysis of lipids in barley. Agrifood production faces the dual challenges of an increasing world population and the threats of abiotic stresses arising from climate change and the erosion of arable land. Cereals, the major food crops, are poorly adapted to tolerate most abiotic stresses, including salinity. This project applies new technologies investigating spatial and temporal biochemical mechanisms a model cereal, Hordeum vulgare (barley), utilises to adapt and tolerate salinity. The aims are to investigate the role of specifically plasma membrane lipids modulating either signalling pathways or membrane fluidity that impacts on adaptation during salinity. The results will provide new leads for the development of cereal germplasm with increased salt tolerance.Read moreRead less
Isolation and functional characterisation of a pathogen meta effector able to inhibit detection of multiple disease effectors by resistant plants. The rust fungi are a major economic threat to crop production in Australia. This project will investigate the molecular mechanism used by a rust fungus to prevent detection of multiple disease-inducing proteins by resistant plants and generate knowledge that will lead to the development of new and more effective disease control strategies.
Molecular basis of rust infection and host plant resistance. Plant diseases threaten agricultural productivity in Australia, with rust fungi being a major problem for cereal grain production. This project will investigate molecular processes underlying the infection of plants by rust fungi and will provide basic knowledge for development of novel and durable disease resistance strategies.
Finding the missing links in salt and water transport in plants. Grain crops and horticultural plants use proteins called aquaporins to move water across cell membranes, but a group of these proteins can also transport some important nutrient ions as well as toxic sodium ions. This project aims to reveal the molecular pathways that regulate water and ion transport via aquaporins using advanced techniques in biophysics and molecular biology. These results will provide novel insights into how plan ....Finding the missing links in salt and water transport in plants. Grain crops and horticultural plants use proteins called aquaporins to move water across cell membranes, but a group of these proteins can also transport some important nutrient ions as well as toxic sodium ions. This project aims to reveal the molecular pathways that regulate water and ion transport via aquaporins using advanced techniques in biophysics and molecular biology. These results will provide novel insights into how plants coordinate and adapt to changing water and salt conditions, addressing a missing link in how ions and water move in and out of plant vacuoles. Benefits include an expanded, innovative range of targets for plant breeding programs to improve plant productivity in our changing climate.Read moreRead less
How SEP-like genes determine cereal inflorescence architecture. This project aims to understand the morphological diversity of inflorescence architecture between cereal crop species. To do so, this project will identify functions and analyse the regulatory networks of conserved SEPALLATA genes (SEPs). This will enable them to determine cereal inflorescence morphogenesis of rice (branching) and barley (non-branching), representing the most important cereals. Identifying and understanding rice and ....How SEP-like genes determine cereal inflorescence architecture. This project aims to understand the morphological diversity of inflorescence architecture between cereal crop species. To do so, this project will identify functions and analyse the regulatory networks of conserved SEPALLATA genes (SEPs). This will enable them to determine cereal inflorescence morphogenesis of rice (branching) and barley (non-branching), representing the most important cereals. Identifying and understanding rice and barley SEPs, their direct targets and interactors, and how they regulate inflorescence branches and spikelets in both species is expected to provide evolutionary and developmental insights and targets to improve for crop yield. A molecular understanding of the regulatory network that underpins inflorescence shape and grain number will advance fundamental biology, and could form the basis for significant yield improvements by manipulating key points in the developmental pathway.Read moreRead less
Decoding tissue-specific components of cereal grain development. This project aims to investigate how barley flowers produce cells that deliver nutrients into developing seeds. This project expects to generate new knowledge through international collaboration and technical improvements in cell biology and genetics, overcoming current methodological limitations to precisely influence seed size, shape and quality, which are traits of agricultural relevance to the Australian cereal industry. Expect ....Decoding tissue-specific components of cereal grain development. This project aims to investigate how barley flowers produce cells that deliver nutrients into developing seeds. This project expects to generate new knowledge through international collaboration and technical improvements in cell biology and genetics, overcoming current methodological limitations to precisely influence seed size, shape and quality, which are traits of agricultural relevance to the Australian cereal industry. Expected outcomes include strengthened international partnerships, leveraged funding and increased knowledge of plant reproduction. This should provide significant benefits, including upskilled researchers, improved research capacity and genetic targets to optimise seed production in challenging climatic conditions. Read moreRead less
Control of crop-microbe symbiosis by new plant hormones. This project aims to discover how plants use hormone-like chemicals, called butenolides, to control symbiotic relationships with soil fungi. It will use multidisciplinary and collaborative techniques to establish how butenolide metabolism affects the diversity of fungal colonisation. Expected outcomes of this project include a deeper understanding of how plants regulate the competency of roots to host symbiotic fungi, and how this affects ....Control of crop-microbe symbiosis by new plant hormones. This project aims to discover how plants use hormone-like chemicals, called butenolides, to control symbiotic relationships with soil fungi. It will use multidisciplinary and collaborative techniques to establish how butenolide metabolism affects the diversity of fungal colonisation. Expected outcomes of this project include a deeper understanding of how plants regulate the competency of roots to host symbiotic fungi, and how this affects plant growth. As such, it will generate knowledge of how cereals such as barley could be modified to improve their nutrient use efficiency. Benefits of this project include the potential to reduce fertiliser inputs, thereby improving the competitiveness and environmental impact of Australian agriculture.Read moreRead less
Novel laser isotopic techniques to assess the potential for water-use efficiency improvement of Australian crops. This project aims to develop new methods to reduce the water used by grain crops while maintaining productivity by advancing knowledge of the regulation plant carbon gain and water loss. Novel laser-lased measurement systems developed and applied in this project will provide new mechanistic understanding of plant carbon-water dynamics for individual leaves and at the whole crop scal ....Novel laser isotopic techniques to assess the potential for water-use efficiency improvement of Australian crops. This project aims to develop new methods to reduce the water used by grain crops while maintaining productivity by advancing knowledge of the regulation plant carbon gain and water loss. Novel laser-lased measurement systems developed and applied in this project will provide new mechanistic understanding of plant carbon-water dynamics for individual leaves and at the whole crop scale. Water availability is the most pressing environmental issue facing the Australian grain industry, so improvements in the efficiency with which water is used will have profound economic and environmental effects.Read moreRead less