Unravelling cell wall polysaccharide biosynthesis in pathogenic zygomycetes. This project aims to define mechanisms that control cell wall composition and stability in Rhizopus oryzae, a zygomycete fungus responsible for life-threatening human infections. The biochemical properties and function of vital enzymes involved in a newly discovered cell wall polysaccharide biosynthetic pathway will be determined using innovative approaches at the interface of biochemistry, microbiology, cell biology an ....Unravelling cell wall polysaccharide biosynthesis in pathogenic zygomycetes. This project aims to define mechanisms that control cell wall composition and stability in Rhizopus oryzae, a zygomycete fungus responsible for life-threatening human infections. The biochemical properties and function of vital enzymes involved in a newly discovered cell wall polysaccharide biosynthetic pathway will be determined using innovative approaches at the interface of biochemistry, microbiology, cell biology and structural biology. Expected outcomes include new knowledge on the enzymes that synthesise major fucose-based carbohydrates, to guide the future development of novel strategies for antifungal therapies. The data will also be applicable to animal protection from related zygomycete pathogens.
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The effects of damage and repair of fungal DNA on animal and plant diseases. DNA damage and its repair are implicated in enhancing the ability of fungi to cause disease. These processes enable genomic changes that generate fungal strains better adapted to host colonisation. This project will identify factors that influence mutation, virulence and host adaptation in two model fungi that cause devastating diseases - a human pathogen, Cryptococcus neoformans, and a plant pathogen, Leptosphaeria mac ....The effects of damage and repair of fungal DNA on animal and plant diseases. DNA damage and its repair are implicated in enhancing the ability of fungi to cause disease. These processes enable genomic changes that generate fungal strains better adapted to host colonisation. This project will identify factors that influence mutation, virulence and host adaptation in two model fungi that cause devastating diseases - a human pathogen, Cryptococcus neoformans, and a plant pathogen, Leptosphaeria maculans. Since increases in global temperatures are expected to lead to emerging fungal diseases, understanding effects of damage and repair of fungal DNA on animal and plant diseases is key to designing disease control approaches.Read moreRead less
Molecular basis of synergy between PIs and defensins against fungi. The plant defensin nicotinamide adenine dinucleotide dehydrogenase subunit 1 (NaD1) has potent antifungal activity against agricultural and human pathogens and has potential in the treatment of serious diseases that affect crop production and human health. NaD1 has been found to permeabilise membranes and allows entry of other molecules into the fungal cytoplasm. While screening for molecules that enhance the activity of defensi ....Molecular basis of synergy between PIs and defensins against fungi. The plant defensin nicotinamide adenine dinucleotide dehydrogenase subunit 1 (NaD1) has potent antifungal activity against agricultural and human pathogens and has potential in the treatment of serious diseases that affect crop production and human health. NaD1 has been found to permeabilise membranes and allows entry of other molecules into the fungal cytoplasm. While screening for molecules that enhance the activity of defensins a number of proteinase inhibitors were identified that act synergistically with NaD1. This project aims to identify the molecular basis of this synergy which is expected to lead to better control of fungal diseases of crops and in humans.Read moreRead less