My primary expertise is in molecular microbiology, and I have been doing active research in this area for over 25 years without interruption. Current research in my lab includes 1) genetic and biochemical characterisation of genes involved in bacterial adaptation to eukaryotic hosts (plants and humans); 2) functional analysis of microbial communities in agricultural soils; 3) mechanisms of copper-mediated contact killing of bacterial pathogen and the use of copper to prevent and control bacterial infectious diseases; 4) the use of copper bactericides in the control of bacterial canker disease in kiwifruit.