Sodium homeostasis and the molecular basis for neurotoxin production by bacteria and algae. An understanding of the physiology of saxitoxin-producing microorgansims in response to salt stress is critical for the prevention of toxic blooms and for risk assessment of contaminated water bodies. This is nowhere more relevant than in the depleted and increasingly saline water resources of inland Australia. This project will develop genetic tests to assay for saxitoxin-producers and to monitor toxin p ....Sodium homeostasis and the molecular basis for neurotoxin production by bacteria and algae. An understanding of the physiology of saxitoxin-producing microorgansims in response to salt stress is critical for the prevention of toxic blooms and for risk assessment of contaminated water bodies. This is nowhere more relevant than in the depleted and increasingly saline water resources of inland Australia. This project will develop genetic tests to assay for saxitoxin-producers and to monitor toxin production in response to the environment, representing an easier, more economic and ethical alternative to current tests. The market for this type of predictive test includes environmental, anti-bioterrorism and fishery organisations. These genes will also allow the bioengineering of novel therapeutic drugs based on neuroactive alkaloids.Read moreRead less
Recovery and characterization of monooxygenases for biocatalysis and bioremediation through development of novel DNA- and protein-based technology. Australia contains hundreds of sites contaminated with toxic waste and judged to pose significant risk of harm to the public. This project will identify enzymes and organisms capable of remediating such contaminated sites by natural processes. It will also result in training of persons and development of techniques that will contribute to making bi ....Recovery and characterization of monooxygenases for biocatalysis and bioremediation through development of novel DNA- and protein-based technology. Australia contains hundreds of sites contaminated with toxic waste and judged to pose significant risk of harm to the public. This project will identify enzymes and organisms capable of remediating such contaminated sites by natural processes. It will also result in training of persons and development of techniques that will contribute to making bioremediation an environmentally sustainable and cost-effective technology. The environmental proteomics strategy is a frontier technology, expected to have broad applications in health, food science and the environment. Our development of this technology will create a wide range of opportunities for Australian scientists and companies.Read moreRead less
In vitro evolution of more thermostable dextranases for the Australian sugar industry. Dextrans are polysaccharides that adversely affect the productivity of sugarcane mills. The Australian sugar industry currently imports dextranases to deal with this problem but they are not heat stable so the mills have run at lower temperatures than optimal. We have isolated dextranases from thermophilic microorganisms and aim to improve their performance by generating superior heat-stable dextranases using ....In vitro evolution of more thermostable dextranases for the Australian sugar industry. Dextrans are polysaccharides that adversely affect the productivity of sugarcane mills. The Australian sugar industry currently imports dextranases to deal with this problem but they are not heat stable so the mills have run at lower temperatures than optimal. We have isolated dextranases from thermophilic microorganisms and aim to improve their performance by generating superior heat-stable dextranases using in vitro evolution, creating new activity levels by random mutation and recombination. The research will be significant in providing novel enzymes for domestic use, allowing import substitution and an outcome will be the development of a product with export potential.
Read moreRead less