Leopoldina Menü

Leopoldina Home


List of Members | Expert Search

Search among the members of the Leopoldina for experts in specific fields or research topics.

New Search

Prof. Dr.

Joanne Chory

Year of election: 2008
Section: Organismic and Evolutionary Biology
City: La Jolla, CA
Country: USA
CV Joanne Chory - PDF (Deutsch)
CV Joanne Chory - PDF (English)


Major Scientific Interests: Adaptation processes, plant growth, genetic diversity, natural variations, light conditions, shade avoidance syndrome, plant biology, climate change, growth hormone auxin, phytochromes, brassinosteroids

Joanne Chory’s work has contributed to the identification of plant hormones. She investigates the natural variations in plant species and plant reactions to different light and temperature conditions. Her studies have helped us understand how plants adapt to climate change.

Individual members of the same plant species often thrive in very different environmental conditions. The model plant used by plant geneticists, thale cress (Arabidopsis thaliana), grows in many parts of the world – from northern Scandinavia to Central Africa. Chory’s team is researching the plant’s natural variants, searching for molecular clues to this adaptation process in the DNA. Her laboratory has made a significant contribution to decoding three important plant hormones. For example, she and her colleagues explained the previously unknown process of how plants produce the important growth hormone auxin.

Chory used thale cress to explain the well-known phenomenon of shade avoidance syndrome. Light-sensitive proteins in plants, called phytochromes, constantly measure ambient light conditions. If the plant’s surroundings are too crowded and shady, processes enabling it to shoot up quickly are activated. With the help of gene analyses, Chory’s team were able to localise growth genes that are responsible for shade avoidance syndrome. She also discovered that plants’ reactions to light conditions are controlled by genetic variations. These variations make plants in northern countries more light-sensitive than those at the equator. Chory’s analyses have also shown that a process involving many different interactions, rather than a linear signal transfer, is responsible for reactions to light conditions.

Chory’s laboratory also decoded the molecular signal chain of other hormones that help plants thrive. Brassinosteroids influence the activity of genes that control cell ageing processes as well as plant growth. Through additional research on brassinosteroids, Chory and her team hope to learn even more about the mechanism of plant growth and to find out how changes in the environment influence growth.


  • since 1999 Adjunct Professor, Biology Department, University of California, San Diego, USA
  • since 1998 Director, Plant Biology Laboratory, The Salk Institute, La Jolla, USA
  • 1997 Investigator, The Howard Hughes Medical Institute. USA
  • 1994-1998 Associate Professor, Plant Biology Laboratory, The Salk Institute, La Jolla, USA
  • 1992-1994 Adjunct Assistant Professor, Biology Department, University of California, San Diego, USA
  • 1988-1994 Assistant Professor, Plant Biology Laboratory, The Salk Institute, USA
  • 1984-1988 Postdoctoral Fellow, Harvard Medical School, USA
  • Ph.D. in microbiology, University of Illinois, USA
  • B.A. in biology, Oberlin College, Ohio, USA

Honours and Memberships

  • 2018 Breakthrough Prize in Life Sciences
  • 2012 Genetics Society of America Medal
  • 2011 Foreign Member of the Royal Society
  • 2009 Foreign Member of the French Académie des Sciences
  • since 2008 Member of the German National Academy of Sciences Leopoldina
  • since 2006 Associate member of the European Molecular Biology Organization (EMBO)
  • since 2005 Fellow of the American Association for the Advancement of Science
  • 2004 Kumho Award in Plant Molecular Biology
  • 2003 Scientific American 50-Research Leader in Agriculture
  • 2000 L'Oréal-UNESCO Award for Women in Science
  • since 1999 Member of the US National Academy of Sciences
  • since 1998 Member of the American Academy of Arts and Sciences
  • 1995 Charles Albert Schull Award, American Society of Plant Physiologists
  • 1994 Award for Initiatives in Research, US-National Academy of Sciences




Emil-Abderhalden-Str. 35
06108 Halle (Saale)

Phone 0345 - 47 239 - 122
Fax 0345 - 47 239 - 139
E-Mail archiv @leopoldina.org

Academia Net

Profiles of Leading Women Scientists on AcademiaNet – an initiative of the Robert Bosch Stiftung.