I have researched legume and rhizobial development in WA for over 20 years and currently I am the only trained and experienced rhizobiologist employed by DPIRD. I have a deep understanding of functions and processes of N fixation by agricultural legumes and its associated rhizobia, and their high importance for sustainable agriculture. My research has had a major impact in WA agriculture through the selection of elite rhizobial strains which have resulted in more efficient and robust N fixing bacteria for both crop and pasture legumes. In my present position I principally work towards optimal nodulation and symbiotic performance of legumes in WA agriculture and nationally.