A New Window into Transgene Silencing in Plants: mechanisms of copy-number independent, 5' sequence dependent, post-transcriptional silencing in a complex polyploid. Silencing of introduced genes is a major problem limiting plant molecular improvement. Sugarcane, a complex polyploid, shows the most efficient transgene silencing ever observed in plants. Silencing operates on the RNA, depends on the upstream sequence of the gene, and is independent of copy number. Other plant species develop endop ....A New Window into Transgene Silencing in Plants: mechanisms of copy-number independent, 5' sequence dependent, post-transcriptional silencing in a complex polyploid. Silencing of introduced genes is a major problem limiting plant molecular improvement. Sugarcane, a complex polyploid, shows the most efficient transgene silencing ever observed in plants. Silencing operates on the RNA, depends on the upstream sequence of the gene, and is independent of copy number. Other plant species develop endopolyploidy with age, and show unpredictable or patchy silencing. We speculate that differential silencing is a natural control mechanism in the exploitation of polyploidy in plants. The sugarcane system provides an exceptional opportunity to identify the sequences that trigger and protect from silencing, and to develop approaches to avoid the problem.Read moreRead less
Clean fuels for the future: Scale up and optimisation of microalgal oil production and biodiesel synthesis. The development of renewable carbon-neutral fuels is an urgent challenge facing our society. This project aims to develop an innovative system for biodiesel production from local Australian algae species. If cultivated under the right conditions, microalgae are very efficient near-continuous producers of biodiesel and are likely the only renewable source of fuel that could match our curren ....Clean fuels for the future: Scale up and optimisation of microalgal oil production and biodiesel synthesis. The development of renewable carbon-neutral fuels is an urgent challenge facing our society. This project aims to develop an innovative system for biodiesel production from local Australian algae species. If cultivated under the right conditions, microalgae are very efficient near-continuous producers of biodiesel and are likely the only renewable source of fuel that could match our current and future demand without competing for arable land and food production. Such systems couple the national/community benefits of energy generation, carbon-capture, biodiesel production and the clean-up of wastewater. Successful outcomes from this project will bring this innovative technology closer to commercial reality. Read moreRead less
Second generation biofuels: developing environmentally friendly high-efficiency microalgae for biofuel production. The development of CO2-neutral (biodiesel) and CO2-free (hydrogen) fuels is an urgent challenge facing our society to combat climate change and protect against oil price shocks. Successful outcomes from this project will bring this innovative technology closer to commercial reality. The solar-powered microalgal systems being developed, offer a number of national/community benefits ....Second generation biofuels: developing environmentally friendly high-efficiency microalgae for biofuel production. The development of CO2-neutral (biodiesel) and CO2-free (hydrogen) fuels is an urgent challenge facing our society to combat climate change and protect against oil price shocks. Successful outcomes from this project will bring this innovative technology closer to commercial reality. The solar-powered microalgal systems being developed, offer a number of national/community benefits including
1. A high-efficiency frontier-technology for clean fuel production for the Australian and international market
2. A new process to desalinate water
3. Frontier technology to sequester atmospheric CO2
4. Frontier technologies for wealth generation in drought- or salinity-affected and naturally arid regionsRead moreRead less
Targeted bioengineering and systems biology for solar powered hydrogen production in green algal cells. The development of clean fuels to combat climate change and protect against oil price shocks, is an urgent challenge facing our society. Fuels make up ~67% of the energy market, yet most low-CO2 emissions technologies (e.g. nuclear and clean-coal-technology) target the electricity market. In contrast the Solar Bio-H2 process uses algal photobioreactors to drive solar-powered H2 fuel production ....Targeted bioengineering and systems biology for solar powered hydrogen production in green algal cells. The development of clean fuels to combat climate change and protect against oil price shocks, is an urgent challenge facing our society. Fuels make up ~67% of the energy market, yet most low-CO2 emissions technologies (e.g. nuclear and clean-coal-technology) target the electricity market. In contrast the Solar Bio-H2 process uses algal photobioreactors to drive solar-powered H2 fuel production from water (ultimately sea water, facilitating desalination). This project aims to improve the efficiency of the process towards economical levels. The Solar Bio-H2 process reduces water requirements for biofuel production. Locating bioreactors on non-arable land also eliminates competition between biofuel and food production.Read moreRead less
Plant transformation: exploiting anti-apoptosis genes for very high efficiency transformation. Crop improvement through genetic modification depends on the ability to transform target species. The most desirable method is Agrobacterium mediated transformation. However, plant species and cultivars differ significantly in their ability to be efficiently transformed by Agrobacterium. This is particularly true for the economically important cereals. We have discovered that anti-apoptosis genes, whic ....Plant transformation: exploiting anti-apoptosis genes for very high efficiency transformation. Crop improvement through genetic modification depends on the ability to transform target species. The most desirable method is Agrobacterium mediated transformation. However, plant species and cultivars differ significantly in their ability to be efficiently transformed by Agrobacterium. This is particularly true for the economically important cereals. We have discovered that anti-apoptosis genes, which inhibit programmed cell death, dramatically increase the Agrobacterium transformation efficiency in bananas and sugarcane. We will utilise this information and develop the use of these genes to increase the efficiency of transformation in those crops and cultivars that are difficult to transform using Agrobacterium.Read moreRead less