2019–present: Head of the Department of Environmental Biology (2nd mandate), Faculty of Mathematical, Physical, and Natural Sciences, Sapienza University of Rome. 2019-present: Member of the University Senate, Sapienza University of Rome. 2017– present: Member of the University Education Committee, Sapienza University of Rome. 2016-2019: Head of the Department of Environmental Biology, Sapienza University of Rome. 2016: Member of REPRISE (Register of Expert Peer-Reviewers for Italian Scientific Evaluation), Ministry of Education, University and Research. 2016-2017: Reviewer for evaluation of research quality in Italy (VQR 2011-2014) ANVUR (National Agency for the Evaluation of the University and Research Systems). 2015: Reviewer in the Committees for selection of SIR Projects (Scientific Independence of Young Researchers) Ministry of Education, University and Research. 2014-present: Member of the Executive Committee of the Italian Botanical Society. 2012–present: Responsible for the Curriculum in Botany, Ph.D. in Environmental and Evolutionary Biology Sapienza University of Rome. 2012-2013: Member of GEV (group of experts for research evaluation) Area 05 VQR 2004-2010. 2005-2012: Coordinator of the Ph.D. in Botany, Sapienza University of Rome. 2000-present: Full Professor SSD BIO/01, Sapienza University of Rome, Dept. of Plant Biology. 1988-2000: Associate Professor, SSD BIO/01, Sapienza Univ. of Rome. 1980-1988: Research Assistant, Sapienza Univ. of Rome.