Ph.D., University of Wales, Aberystwyth, 1965.

Postdoctoral, Plant Research Laboratory, Michigan State University, 1965-1966.

Professor of Botany, University of California, Berkeley, 1974-1989.

Associate Professor of Botany, University of California, Berkeley, 1971-1974.

Assistant Professor of Botany, University of California, Berkeley, 1966-1971.

Acting Chairman, Department of Instruction in Biology, University of California, Berkeley, 1977-1978.

Acting Director, University of California Herbarium, 1982-1983.

Chair, Academic Senate Committee on Research, University of California, 1983-1984.

Chair, Letters and Science Committee on Courses, University of California, 1976-1979.

Chair, President’s Advisory Committee for the Statewide Air Pollution Research Center, UC Riverside, 1990-1995.

Member, Executive Committee, Miller Institute for Basic Research, 1977-1981.

Member, Executive Committee, College of Natural Resources, 1991-1992 and 1999-2001.

Member, Chancellor’s Advisory Panel for the Biosciences, 1993.

Member, RIKEN Advisory Committee, 1997-present

Member, Committee on Privilege and Tenure, 1997-present and Committee on Committees, 1999-present, University of California, Berkeley.

Chair, Academic Senate Committee on Committees, 2000-2001.

Chair, Lawrence Hall of Science Advisory Committee 2001-

Fellow, American Association for the Advancement of Science, 2001.

Distinguished Research Award, International Plant Growth Substances Association, July, 2001.

Docteur Honoris Causa, Universite Paul Sabatier, Toulouse, Conferred May 16, 2001

Professeur Exceptionelle, Universite Paul Sabatier, Toulouse, May-June, 2001

RIKEN Eminent Scientist, RIKEN, Japan, April-June, 1996

Fellow, Research School of Biological Science, Australian National University, Canberra, January-March, 1996; September 2001-May 2002

Alexander von Humbolt Senior Scientist, University of Göttingen, Federal Republic of Germany, 1986-1987.

Miller Research Professor, University of California, Berkeley, 1975-1976.

John Simon Guggenheim Fellow, University of Nottingham, Nottingham, England, 1972-1973.

Managing Editor, Planta, 1992-2001.

Associate Editor, 1972-1993; Editor 1993-2001, Annual Review of Plant Physiology & Plant Molecular Biology

Editor, Research Notes in Plant Science (Pitman), 1984-present.

Associate Editor, Plant Physiology, 1990-1992

Member, Editorial Board, Plant Physiology, 1967-1992; Trends in Plant Science, 1996-2000.

Service to Governmental Agencies and Professional Organizations

President Elect, 1992-1993 and President, 1993-1994, American Society of Plant Physiologists.

Executive Committee Member, 1981-1988 and President, 1998-present, International Plant Growth Substances Association.

Member, NASA Life Sciences Division Working Group, 1988-1992

Program Manager (1987-1988) and Panel Member (1984-1986), USDA CRGO Plant Growth and Development Panel.

Panel Member, National Science Foundation Panel for Developmental Biology, 1970-1973.

U.S. Representative and Executive Committee Member, International Association of Plant Physiologists, 1981-1994.

Member, RIKEN Advisory Council, 1997-present

International Plant Growth Substances Association, 1976- present

Scandinavian Society of Plant Physiologists, 1984- present

Honorary Lifetime Member, Society of Experimental Biology, U.K.

Honorary Lifetime Member, Australian Society of Plant Physiologists