Effects of global climate change on marine phytoplankton: interactions between UV radiation and elevated atmospheric carbon dioxide levels. Global climate change is one of the most significant ecological challenges for the 21st Century. Phytoplankton contribute over 45% of the planet's annual net primary production and form the basis of most aquatic food chains. Conversely, some phytoplankton are toxic and cause problems in marine and fresh waters. Climate change can potentially disrupt aquatic ....Effects of global climate change on marine phytoplankton: interactions between UV radiation and elevated atmospheric carbon dioxide levels. Global climate change is one of the most significant ecological challenges for the 21st Century. Phytoplankton contribute over 45% of the planet's annual net primary production and form the basis of most aquatic food chains. Conversely, some phytoplankton are toxic and cause problems in marine and fresh waters. Climate change can potentially disrupt aquatic foodchains by its impact on primary production by phytoplankton or stimulating growth of potentially toxic forms. Our project will investigate the combined impact of increasing carbon dioxide and ultraviolet light on phytoplankton and thereby help climate modellers assess the impact of climate change on aquatic ecosystems and particularly on the nation's and the world's fisheries.Read moreRead less
Functional analysis of alternative splicing in plants. Higher temperatures affect flowering and seed set in plants. How plants sense and respond to temperature is currently unclear. Here we study alternative splicing, one of the processes affected by temperature. These studies will advance our knowledge and help develop crops that can withstand negative effects of climate change.
Discovery Early Career Researcher Award - Grant ID: DE160100804
Funder
Australian Research Council
Funding Amount
$370,000.00
Summary
Controlling chloride in plants. This project aims to discover novel components that control how plants acquire and manage chloride. Chloride is one of the two ions that commonly cause salt stress, which is a major threat to Australia’s agriculture. Regions affected by salinity are increasing worldwide due to changing weather patterns and poor land management. Knowledge of plant chloride management is underdeveloped, despite the reduction in crop yield caused by high chloride accumulation. The an ....Controlling chloride in plants. This project aims to discover novel components that control how plants acquire and manage chloride. Chloride is one of the two ions that commonly cause salt stress, which is a major threat to Australia’s agriculture. Regions affected by salinity are increasing worldwide due to changing weather patterns and poor land management. Knowledge of plant chloride management is underdeveloped, despite the reduction in crop yield caused by high chloride accumulation. The anticipated outcome of this project will inform strategies aimed at selecting for optimised chloride management traits to generate crops with improved yield.Read moreRead less
What limits CO2 diffusion inside leaves? Dissecting the diffusion path with Arabidopsis mutants. Human induced increase in atmospheric carbon dioxide is now generally accepted as contributing to global warming. Forecasting our future impact relies on models of terrestrial photosynthesis which use a signature in the atmosphere created by plants when they discriminate against the heavy stable isotope of carbon during photosynthesis. Discrimination between isotopes is affected by carbon dioxide dif ....What limits CO2 diffusion inside leaves? Dissecting the diffusion path with Arabidopsis mutants. Human induced increase in atmospheric carbon dioxide is now generally accepted as contributing to global warming. Forecasting our future impact relies on models of terrestrial photosynthesis which use a signature in the atmosphere created by plants when they discriminate against the heavy stable isotope of carbon during photosynthesis. Discrimination between isotopes is affected by carbon dioxide diffusion within leaves and key steps in this process will be identified through the use of Arabidopsis mutants. Better representation of this process in models will improve estimates of terrestrial photosynthesis and climate change forecastsRead moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101536
Funder
Australian Research Council
Funding Amount
$369,000.00
Summary
How does mitochondrial biogenesis regulate seed germination in plants? This project aims to develop a better understanding of seed germination to enable the generation of cereal seeds with optimised rates of germination for agricultural production. Seed germination is a fundamental phase of the plant life cycle. Every year, alterations in the rate of germination cause significant crop loss in rice and other cereals. Mitochondria are emerging as essential signalling hubs in the regulation of seed ....How does mitochondrial biogenesis regulate seed germination in plants? This project aims to develop a better understanding of seed germination to enable the generation of cereal seeds with optimised rates of germination for agricultural production. Seed germination is a fundamental phase of the plant life cycle. Every year, alterations in the rate of germination cause significant crop loss in rice and other cereals. Mitochondria are emerging as essential signalling hubs in the regulation of seed germination. The project aims to combine the latest technologies and molecular approaches with genetics to understand how mitochondria regulate seed germination and the rate of germination progression in rice. The project also plans to investigate and confirm the interplay between oxygen signalling, phytohormones and mitochondrial biogenesis.Read moreRead less
Genomics of temperature response in plants. Climate change is predicted to have negative impacts on Australian agriculture. This project will use genomic tools to uncover biological mechanisms for plant response to temperature that will help design crop varieties that are more tolerant to higher temperatures.
Discovery Early Career Researcher Award - Grant ID: DE120101706
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Worth its salt: advancing knowledge of salinity tolerance with mangroves as a model system. This project aims to understand how salinity tolerance is achieved in mangroves, which are highly salt tolerant plants. Using a combination of physiological and gene expression technologies the project will measure the response of mangroves to elevated salinity and atmospheric carbon dioxide, contributing to the development of salt tolerant next generation crops.
Mitochondrial Retrograde Signalling in Plants – New Models and Analytical Approaches. Mitochondria are essential organelles involved in energy production and various metabolic and biosynthetic pathways in plant cells. Signals from mitochondria act to regulate nuclear gene expression to coordinate mitochondrial activity with cellular activity, which is called mitochondrial retrograde signalling (MRS). To date our knowledge of the pathways and components involved in MRS is limited to a single mode ....Mitochondrial Retrograde Signalling in Plants – New Models and Analytical Approaches. Mitochondria are essential organelles involved in energy production and various metabolic and biosynthetic pathways in plant cells. Signals from mitochondria act to regulate nuclear gene expression to coordinate mitochondrial activity with cellular activity, which is called mitochondrial retrograde signalling (MRS). To date our knowledge of the pathways and components involved in MRS is limited to a single model system. This proposal seeks to identify additional MRS pathways, characterise components of these pathways and the signals involved. This new knowledge can be used in translational research as a basis to breed plants with altered stress and growth properties.Read moreRead less
Resolving the steps in the evolution of C4 photosynthesis. This project aims to identify the molecular mechanisms responsible for the evolution of grasses using the C4 biochemical pathway that enables plants to survive in hot, dry, high-light environments. The endemic Australian subtribe Neurachninae is the only known grass group that contains C4 species, species using the ancestral C3 pathway, as well as species using pathways intermediate to C3 and C4. Through a comparative approach employing ....Resolving the steps in the evolution of C4 photosynthesis. This project aims to identify the molecular mechanisms responsible for the evolution of grasses using the C4 biochemical pathway that enables plants to survive in hot, dry, high-light environments. The endemic Australian subtribe Neurachninae is the only known grass group that contains C4 species, species using the ancestral C3 pathway, as well as species using pathways intermediate to C3 and C4. Through a comparative approach employing high-throughput sequencing technologies, it is expected that the molecular changes underlying the transition from C3 to C4 will be identified. These results should define what is required to engineer plant varieties with increased yield and the ability to withstand climate change effects.Read moreRead less
Heterotrophically grown microalgae as a feed source for the Australian aquaculture industry. The Australian aquaculture industry has rapidly grown in the past decade producing premium quality, high value species, e.g. tuna and oyster. In the new millennia it is predicted that the Australia aquaculture industry will be the most profitable area within the Australian seafood industry. An integral component for the long-term sustainability of the Australian aquaculture industry is the availability o ....Heterotrophically grown microalgae as a feed source for the Australian aquaculture industry. The Australian aquaculture industry has rapidly grown in the past decade producing premium quality, high value species, e.g. tuna and oyster. In the new millennia it is predicted that the Australia aquaculture industry will be the most profitable area within the Australian seafood industry. An integral component for the long-term sustainability of the Australian aquaculture industry is the availability of top-quality microalgal concentrates, shelf-stable pastes or live feeds, which provide the nutritional requirements of aquatic species in the hatcheries. This project will develop novel microalgal production strategies that would add value to the Australian aquaculture industry.Read moreRead less