Marine Natural Products as Sources of Agrochemicals - The Variolins. The aim of this project is the identification of new classes of agrochemicals with better pest resistance and environmental profiles. The proposed partnership with a major international chemical manufacturing organization will allow access to state-of-the-art techniques for the screening and development of novel compounds as agents for the control of pests that affect many major agricultural crops relevant to Australia's econo ....Marine Natural Products as Sources of Agrochemicals - The Variolins. The aim of this project is the identification of new classes of agrochemicals with better pest resistance and environmental profiles. The proposed partnership with a major international chemical manufacturing organization will allow access to state-of-the-art techniques for the screening and development of novel compounds as agents for the control of pests that affect many major agricultural crops relevant to Australia's economy. Australian graduate students will experience the operations of one of the world's biggest chemical manufacturers. The derivation of agrochemicals from marine sources will promote further recognition of the value of marine ecosystems around Australia.Read moreRead less
REGULATION OF RYANODINE RECEPTOR CALCIUM CHANNELS BY THE CALCIUM BINDING PROTEIN CALSEQUESTRIN. The project is to examine the functional interaction between two proteins in skeletal muscle that are essential for Ca2+ regulation and hence contraction, respiration and movement in all vertebrate species. One protein, the ryanodine receptor, releases calcium from stores inside the muscle cell. The other protein, calsequestrin, binds and sequesters calcium ions. We have recently discovered that th ....REGULATION OF RYANODINE RECEPTOR CALCIUM CHANNELS BY THE CALCIUM BINDING PROTEIN CALSEQUESTRIN. The project is to examine the functional interaction between two proteins in skeletal muscle that are essential for Ca2+ regulation and hence contraction, respiration and movement in all vertebrate species. One protein, the ryanodine receptor, releases calcium from stores inside the muscle cell. The other protein, calsequestrin, binds and sequesters calcium ions. We have recently discovered that the proteins also bind to each other and that calsequestrin regulates Ca2+ release from the stores through the ryanodine receptor ion channel. This regulation is likely to be important in conserving store calcium during stress or fatigue.Read moreRead less
Discovery and applications of circular proteins. The many national benefits that will flow from this program include (i) new knowledge in plant biochemistry, peptide chemistry and protein engineering protected by a strong intellectual property position that will give Australia a competitive edge in relevant biotechnology applications; (ii) the training of a new generation of skilled researchers to drive a sustainable biotechnology sector in Australia; (iii) economic benefits from royalty returns ....Discovery and applications of circular proteins. The many national benefits that will flow from this program include (i) new knowledge in plant biochemistry, peptide chemistry and protein engineering protected by a strong intellectual property position that will give Australia a competitive edge in relevant biotechnology applications; (ii) the training of a new generation of skilled researchers to drive a sustainable biotechnology sector in Australia; (iii) economic benefits from royalty returns on drugs and agricultural products that will likely arise from the program; (iv) environment benefits due to a reduced need for chemical insecticides; and (v) social benefits due to a reduction in suffering from diseases for which drugs are developed as a result of this program.Read moreRead less
Preparation of Photo-Affinity Molecular Probes for the Identification of Gibberellin Receptors. Bioactive gibberellins affect numerous processes during plant growth and development, including seed germination, leaf expansion, stem elongation, flowering and fruit development. However, only very limited information is available regarding their mode of action at the molecular level. The central aim of the project is to prepare a family of photo-affinity molecular probes based on the gibberellin m ....Preparation of Photo-Affinity Molecular Probes for the Identification of Gibberellin Receptors. Bioactive gibberellins affect numerous processes during plant growth and development, including seed germination, leaf expansion, stem elongation, flowering and fruit development. However, only very limited information is available regarding their mode of action at the molecular level. The central aim of the project is to prepare a family of photo-affinity molecular probes based on the gibberellin molecule that will be designed to provide critical information on the location and structure of gibberellin receptors. Screening of the probes for potential effectiveness will be determined initially by the measurement of alpha-amylase produced in a standard barley aleurone assay.Read moreRead less
Biogenesis of secretory organelles and the function of adhesins secreted during the establishment of plant disease. Many agriculturally important crops and Australian native plants are susceptible to diseases caused by species of Phytophthora, a fungus-like organism that lives in the soil. Economic losses due to Phytophthora diseases are estimated to exceed $200 million per annum and the scale of environmental damage in natural ecosystems is huge. Currently, control of Phytophthora diseases la ....Biogenesis of secretory organelles and the function of adhesins secreted during the establishment of plant disease. Many agriculturally important crops and Australian native plants are susceptible to diseases caused by species of Phytophthora, a fungus-like organism that lives in the soil. Economic losses due to Phytophthora diseases are estimated to exceed $200 million per annum and the scale of environmental damage in natural ecosystems is huge. Currently, control of Phytophthora diseases largely depends on a very small number of effective chemicals and there is an imminent risk of the development of pathogen resistance. This research will increase our understanding of how Phytophthora spores infect host plants and will identify suitable targets for the development of novel, environmentally safe chemicals that inhibit disease development.Read moreRead less
Development of environmentally-friendly bioinsecticides for control of Australian crop pests. Insect pests cause over $3 billion of damage each year to Australian crops. Current insecticides are becoming less effective, and they often have adverse environmental impacts. This project aims to develop a new generation of environmentally-friendly insecticides that can be used to control insect pests on farms and around the home and garden.
Biosynthesis and functions of two phytotoxins in Septoria nodorum blotch. This project aims to investigate how a fungal plant pathogen makes and uses small bioactive molecules to facilitate infection. It will characterise the function of the genes and enzymes involved in the biosynthesis of a light-activated phytotoxic molecule and a potential anti-plant defence molecule found in the pathogenic wheat fungus Parastagonospora nodorum, and investigate their contribution to disease development. Expe ....Biosynthesis and functions of two phytotoxins in Septoria nodorum blotch. This project aims to investigate how a fungal plant pathogen makes and uses small bioactive molecules to facilitate infection. It will characterise the function of the genes and enzymes involved in the biosynthesis of a light-activated phytotoxic molecule and a potential anti-plant defence molecule found in the pathogenic wheat fungus Parastagonospora nodorum, and investigate their contribution to disease development. Expected outcomes include better understanding of plant-microbe interactions, disease management strategies, technologies for identifying biosynthetic pathways in other fungi, and enzyme technology for synthesising molecules. This could lead to new herbicides, biopesticides and drugs.Read moreRead less
Fungal Ribosomally Synthesised and Post-translationally Modified Peptides. Fungi produce an array of molecules called secondary metabolites (SMs) that impact on everyday life (e.g. penicillin). This project aims to investigate a new class of fungal peptide SMs called RiPPs which are structurally unique from existing molecules and offer the exciting prospect of harbouring new and novel biological activities. This project expects to discover the mechanisms of RiPP synthesis and their biological ro ....Fungal Ribosomally Synthesised and Post-translationally Modified Peptides. Fungi produce an array of molecules called secondary metabolites (SMs) that impact on everyday life (e.g. penicillin). This project aims to investigate a new class of fungal peptide SMs called RiPPs which are structurally unique from existing molecules and offer the exciting prospect of harbouring new and novel biological activities. This project expects to discover the mechanisms of RiPP synthesis and their biological roles in plant pathogenic fungi, and uncover and engineer novel RiPPs with desired bioactivities. The expected outcome from this project will be a seminal advance in fungal SM biology which should provide significant benefits through the generation of exciting new lead molecules for the agricultural and medical industries.Read moreRead less
Study the Utility of Novel Drug Polymer Conjugates. The products likely to arise from the technology described in this proposal could have application in medical, veterinary and agricultural industries. It offers the potential to treat diseases that are at present poorly treated by enabling delivery direct to the diseased organ (e.g. eye - bacterial endophthalmitis). Completion of the project will also assist a fledgling biotech company transition to a development company with a multiple produ ....Study the Utility of Novel Drug Polymer Conjugates. The products likely to arise from the technology described in this proposal could have application in medical, veterinary and agricultural industries. It offers the potential to treat diseases that are at present poorly treated by enabling delivery direct to the diseased organ (e.g. eye - bacterial endophthalmitis). Completion of the project will also assist a fledgling biotech company transition to a development company with a multiple product portfolio, which will have a direct economic benefit to Australia both in terms of potential export earnings and as an employer highly skilled staff. The project will also provide research training and career opportunities for developing Australian based researchers.Read moreRead less
Selective secretion: a novel mechanism of protein trafficking and its role in Phytophthora pathogenicity. Agriculturally important crops and over 3,000 Australian native plants are susceptible to diseases caused by Phytophthora, fungus-like pathogens that live in the soil. Economic losses exceed $200m pa and natural ecosystems are being destroyed on a vast scale. Phytophthora control depends upon a limited number of chemical inhibitors to which resistance has already emerged. New control stra ....Selective secretion: a novel mechanism of protein trafficking and its role in Phytophthora pathogenicity. Agriculturally important crops and over 3,000 Australian native plants are susceptible to diseases caused by Phytophthora, fungus-like pathogens that live in the soil. Economic losses exceed $200m pa and natural ecosystems are being destroyed on a vast scale. Phytophthora control depends upon a limited number of chemical inhibitors to which resistance has already emerged. New control strategies are urgently needed. This research will investigate a novel mechanism for release of infection material recently discovered in Phytophthora cells, and will increase our understanding of how Phytophthora infects host plants, providing vital information required for the development of new, environmentally-safe inhibitors. Read moreRead less