Striving for the path of least herbicide resistance. This project aims to investigate novel strategies to mitigate the rise in herbicide resistance threatening Australian agricultural production and exports. The project expects to pioneer long-term strategies for the development of herbicides that “resist” resistance generation in weeds to prolong their effectiveness. Expected outcomes include advances in the development of single- and multi-target herbicidal compounds with new modes of action, ....Striving for the path of least herbicide resistance. This project aims to investigate novel strategies to mitigate the rise in herbicide resistance threatening Australian agricultural production and exports. The project expects to pioneer long-term strategies for the development of herbicides that “resist” resistance generation in weeds to prolong their effectiveness. Expected outcomes include advances in the development of single- and multi-target herbicidal compounds with new modes of action, and validation of their potential to yield synergistic combinations and delay the evolution of resistance. This should lay the foundations for significant long-term benefits to farmers and consumers, both in Australia and globally, including increased crop yields and improved food security.Read moreRead less
Boosting C4 photosynthesis to climate proof crop yields. Building next generation C4 crops, such as maize, sugarcane and sorghum, to cope with drought and heat stress is requisite to ensure the supply of food and fodder. Here we will increase the content and / or catalytic efficiency of the primary carboxylase of C4 photosynthesis (PEPC) that supplies CO2 to the carbon concentrating mechanism and ensures high photosynthetic rates. We will develop new SynBio tools to create and test novel PEPC is ....Boosting C4 photosynthesis to climate proof crop yields. Building next generation C4 crops, such as maize, sugarcane and sorghum, to cope with drought and heat stress is requisite to ensure the supply of food and fodder. Here we will increase the content and / or catalytic efficiency of the primary carboxylase of C4 photosynthesis (PEPC) that supplies CO2 to the carbon concentrating mechanism and ensures high photosynthetic rates. We will develop new SynBio tools to create and test novel PEPC isoforms with desirable properties. Ultimately, the project aims to identify isoforms that improve plant fitness under stress conditions. Optimising PEPC activity will provide next generation solutions to improve water balance and carbon assimilation to keep C4 crops productive under future climates.Read moreRead less
Remodelling encapsulin nanocages to help enhance plant carbon fixation. Nature has evolved mechanisms in microbial systems to improve photosynthetic efficiency by saturating the enzyme Rubisco with carbon dioxide. These carbon concentrating mechanisms are genetically complex, precluding successful introduction into crops. Our simpler approach is to use encapsulins, a new source of robust bacterial pore-containing nanocages made from a single gene. This project will optimise the development of sy ....Remodelling encapsulin nanocages to help enhance plant carbon fixation. Nature has evolved mechanisms in microbial systems to improve photosynthetic efficiency by saturating the enzyme Rubisco with carbon dioxide. These carbon concentrating mechanisms are genetically complex, precluding successful introduction into crops. Our simpler approach is to use encapsulins, a new source of robust bacterial pore-containing nanocages made from a single gene. This project will optimise the development of synthetic encapsulin-Rubisco carbon-fixing nanoreactors and transform them into leaf chloroplasts to test their impact on plant photosynthesis and growth. Our genetically simpler solution will aid ongoing global efforts to deliver overdue step change improvements in agricultural productivity.Read moreRead less
Pyruvate provision for mitochondrial respiration in plants. This project aims to generate new knowledge about pyruvate provision for respiration in plants as it is a major pathway of carbon loss from plants. It will address specific gaps in knowledge about how pyruvate is provided to mitochondria for respiration, how channelling of pyruvate is achieved between components in this pathway and it will seek to engineering a new pyruvate supply pathway to change respiratory processes in plants. It wi ....Pyruvate provision for mitochondrial respiration in plants. This project aims to generate new knowledge about pyruvate provision for respiration in plants as it is a major pathway of carbon loss from plants. It will address specific gaps in knowledge about how pyruvate is provided to mitochondria for respiration, how channelling of pyruvate is achieved between components in this pathway and it will seek to engineering a new pyruvate supply pathway to change respiratory processes in plants. It will develop techniques for analysis of metabolic processes in plants and genetic proof for assumptions of how plant respiration works. Benefits will be training of early career researchers, enhanced international reputation of Australian plant science and new approaches to engineer respiratory rate in plants.Read moreRead less
Improving grain legume seeds for future climates. Grain legumes are essential for sustainable agriculture and human dietary protein, but seed quality is predicted to decline under future scenarios of high CO2 and warmer temperatures. This project aims to improve legume seed quality under future climates by comparing metabolites and physiological traits of chickpea and other legumes to establish mechanisms by which legumes maximise seed nutrient allocation. The anticipated outcomes include new me ....Improving grain legume seeds for future climates. Grain legumes are essential for sustainable agriculture and human dietary protein, but seed quality is predicted to decline under future scenarios of high CO2 and warmer temperatures. This project aims to improve legume seed quality under future climates by comparing metabolites and physiological traits of chickpea and other legumes to establish mechanisms by which legumes maximise seed nutrient allocation. The anticipated outcomes include new metabolite-based breeding markers for the improvement of crops with higher seed proteins, micronutrients and bioactive compounds that are adapted to future climates. Seed nutrient improvement will also include increased biological nitrogen fixation to reduce the need for chemical nitrogen fertilisers.Read moreRead less