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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
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
How do plant roots align nitrogen uptake to soil opportunities? Improved nitrogen use efficiency (NUE) in crop plants is required to achieve sustainable plant agriculture practices that maximise productivity while minimising nitrogen fertiliser-dependent pollution. Current high-input monoculture plant production systems suffer from poor NUE and can contribute to local and global nitrogen pollution outcomes. Improving how plants manage their nitrogen uptake will improve NUE and help support Aust ....How do plant roots align nitrogen uptake to soil opportunities? Improved nitrogen use efficiency (NUE) in crop plants is required to achieve sustainable plant agriculture practices that maximise productivity while minimising nitrogen fertiliser-dependent pollution. Current high-input monoculture plant production systems suffer from poor NUE and can contribute to local and global nitrogen pollution outcomes. Improving how plants manage their nitrogen uptake will improve NUE and help support Australian plant agriculture. This project will investigate novel technologies that re-engineer nitrate transport activity. The project will also investigate the biochemical and molecular links between nitrogen uptake on root development required for improved plant growth.Read moreRead less
Unique parental epitranscriptome states regulate seed development. This project aims to investigate how developing central cell epitranscriptomes are linked to seed growth, how the cell regulates the unique epigenetic states, and the role of the system in driving phenotypic diversity. Maternal and paternal effects determine growth and development of multicellular angiosperm plants. Previous work has discovered unique ribonucleic acid (RNA) epitranscriptome states dependent on the parent-of-origi ....Unique parental epitranscriptome states regulate seed development. This project aims to investigate how developing central cell epitranscriptomes are linked to seed growth, how the cell regulates the unique epigenetic states, and the role of the system in driving phenotypic diversity. Maternal and paternal effects determine growth and development of multicellular angiosperm plants. Previous work has discovered unique ribonucleic acid (RNA) epitranscriptome states dependent on the parent-of-origin in developing central cell that gives rise to the endosperm tissue of the seed that impacts on growth of the seed. This project expects to provide economic benefits by increasing yield of agricultural crops during increasingly challenging conditions.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
Harnessing genetic diversity for complex traits. Genetic diversity underpins crop improvement but has become increasingly narrow in our major crops. Strategies exist for mobilising simple traits (e.g. disease resistance) from wild accessions or landraces into cultivars, but there are no effective approaches for introducing complex traits, including stress tolerance or components of yield. Using barley as an important crop and a genetic model, the project aims to address this problem by applying ....Harnessing genetic diversity for complex traits. Genetic diversity underpins crop improvement but has become increasingly narrow in our major crops. Strategies exist for mobilising simple traits (e.g. disease resistance) from wild accessions or landraces into cultivars, but there are no effective approaches for introducing complex traits, including stress tolerance or components of yield. Using barley as an important crop and a genetic model, the project aims to address this problem by applying a novel approach; partial redomestication of wild accessions by introgressing genes required for modern farming, then evaluating the resulting partially adapted germplasm in hybrids with elite cultivars. The project expects to generate new and diverse germplasm pools for breeding.Read moreRead less
Investigating a novel signalling pathway for crop improvement. This project will dissect a newly identified signalling pathway in plants that regulates plant water use and carbon gain. It will deploy multiple techniques, including novel biosensors, to understand the links between the metabolism of plants and their environmental responses. The project will build partnerships with scientists at leading international institutions for enhanced outcomes, including access to specialised equipment and ....Investigating a novel signalling pathway for crop improvement. This project will dissect a newly identified signalling pathway in plants that regulates plant water use and carbon gain. It will deploy multiple techniques, including novel biosensors, to understand the links between the metabolism of plants and their environmental responses. The project will build partnerships with scientists at leading international institutions for enhanced outcomes, including access to specialised equipment and upskilling of our scientists. The generation of barley with the latest gene editing techniques aims to produce a non-GM crop with the potential for enhanced root C sequestration, lower water use and improved yield, three key goals for agricultural sustainability in the face of a drying Australian climate.Read moreRead less
Molecular switches and genetic consequences of grain retention in cereals. Grain retention at maturity was key for crop domestication and laid the basis for farming. Wheat and barley have evolved a novel mechanism for ensuring grain retention and, although the genes are known, the mechanisms for action are not. Grain dispersal in the wild relatives involves highly targeted changes in the walls of a small number of cells. This project will explore how the two identified genes control this proces ....Molecular switches and genetic consequences of grain retention in cereals. Grain retention at maturity was key for crop domestication and laid the basis for farming. Wheat and barley have evolved a novel mechanism for ensuring grain retention and, although the genes are known, the mechanisms for action are not. Grain dispersal in the wild relatives involves highly targeted changes in the walls of a small number of cells. This project will explore how the two identified genes control this process and clarify their mode of action. The genes ensuring grain retention have been so critical for domestication that the region surrounding them has become genetically fixed. The project will assess the implication of fixation on genetic diversity and develop options to bring novel variation into breeding programs.Read moreRead less