Research in Dr. Paul Jarvis’s laboratory is focused on the development and functions of chloroplasts in plants, with particular emphasis on the mechanisms for delivering nucleus-encoded proteins to these organelles. He works with the model plant Arabidopsis thaliana, as well as with crop plant species. Recent research in his laboratory led to the breakthrough discovery that the chloroplast protein import machinery is directly regulated by the ubiquitin-proteasome system, a vital system for the removal of unwanted proteins in eukaryotic cells. He joined the Department of Plant Sciences, Oxford, as a Professor of Plant Cell Biology in 2013, after spending 15 years at the University of Leicester, initially as a lecturer and then subsequently as an independent research fellow, reader and professor. Before moving to Leicester in 1999, he completed his doctoral studies with Caroline Dean at the John Innes Centre in Norwich in 1997, and then did postdoctoral work with Joanne Chory at the Salk Institute for Biological Studies in California until 1998.