A researcher with a keen interest in plant vitamin C (ascorbic acid) metabolism, focusing on its biosynthesis, photoprotection in photosynthesis, and roles of antioxidants. Leader of the Exeter Mass Spectrometry Facility, conducting small molecule analysis. Current research includes investigating ROS and antioxidants in plants, metabolomics using LC-MS and GC-MS in plants and algae, and studying high-temperature acclimation in algae and cyanobacteria.