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My long term research interest is in the metabolism and functions of vitamin C (ascorbic acid) in plants. My laboratory has discovered the biosynthetic pathway of ascorbate and more recently we are focussing on control of its synthesis and accumulation in relation to light and its role in photoprotection of photosynthesis. I am more generally interested in the roles of antioxidants and reactive oxygen species. Biochemical and molecular genetics approaches are used, focussing on Arabidopsis thaliana as well as algae and cyanobacteria. I am director of the Exeter Mass Spectrometry Facility wihch focusses on small molecule analysis. My current research focuses on the following areas.
The functions of reactive oxygen species (ROS) and antioxidants in plants. Currently, the focus is on the metabolism and functions of ascorbate (vitamin C) and on the production and functions of hydrogen peroxide.
Plant and algal metabolism and metabolomics. We are developing LC-MS and GC-MS metabolite profiling methods and mass spectral databases for plants and algae. Imaging plant chemical composition and metabolism using Raman microscopy.
High temperature acclimation and adaptation in algae and cyanobacteria.
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JOURNAL OF EXPERIMENTAL BOTANY (2024)
The Plant journal : for cell and molecular biologyno. 2 (2023): 404-415
Samuel Barton,Daniel Padfield, Abigail Masterson,Angus Buckling,Nicholas Smirnoff,Gabriel Yvon-Durocher
Global change biologyno. 18 (2023): 5261-5275
Free Radical Biology and Medicine (2022): 1-1
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