Katherine Esau

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Katherine Esau
Katherine Esau.jpg
Born 3 April 1898
Dnipropetrovsk, Ukraine
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Santa Barbara, California
Nationality German, American
Fields Botany
Notable awards National Medal of Science (1989)

Katherine Esau (3 April 1898 – 4 June 1997) was a German-American botanist who received the National Medal of Science for her work on plant anatomy.[1]

Early life and education

Esau was born in Yekaterinoslav, Russian Empire (now Dnipropetrovsk, Ukraine) to a family of Mennonites of German descent, so-called "Russian Mennonites".[2] She began studying agriculture in Moscow, but after a year her family was prompted by the Bolshevik Revolution to move to Germany where she completed her studies at the Agricultural College of Berlin.[1] The Esau family moved to California in 1922, where Esau worked for the Spreckels Sugar Company on sugar beet resistance to curly top virus.[3] She resumed her education at the University of California, Davis, where she achieved her doctorate in 1931,[1] joined the faculty, and remained until her retirement at age 67.[3]


Esau was a pioneering plant anatomist and her books Plant Anatomy and Anatomy of Seed Plants have been key plant structural biology texts for four decades. Her early work in plant anatomy focused the effect of viruses on plants, specifically on plant tissue and development. Esau worked at the University of California, Davis as a teacher and later a professor of Botany. While teaching, she continued her research on viruses and specifically phloem, the food conducting tissue in plants. She was elected a Fellow of the American Academy of Arts and Sciences in 1949.[4] In the 1950s, she collaborated with botanist Vernon Cheadle on more phloem research. In 1957, she was the sixth woman elected as a member of the National Academy of Sciences. After retiring from the University of California, Davis, she moved to the University of California, Santa Barbara in 1965, and continued her research well into her 90s, publishing 162 articles and five books.[5]

When asked by Elga Wasserman to reflect on her education and career, Esau wrote in 1973 that scientific activities dominated her career and added, "I found ways of maintaining spiritual independence while adjusting myself to established policies. . . . I have never felt that my career was being affected by the fact that I am a woman."[3]


In 1989, President George Bush awarded Esau the National Medal of Science.[6]

In memory of her contributions as a lecturer, author and scientist, the Katherine Esau Award is awarded to the graduate student who presents the best paper in structural and developmental biology at the annual meeting of the Botanical Society of America.[7]

Many of Esau's publications are housed and available for loan from the Cornelius Herman Muller library at the University of California, Santa Barbara's Cheadle Center for Biodiversity and Ecological Restoration.

Esau died on 4 June 1997 in Santa Barbara, California, USA.[8]


  • Esau, Katherine (1953). Plant Anatomy. (2nd Edition 1965; 3rd ed. 2006). McGraw-Hill, New York.
  • Esau, Katherine (1961). Plants, Viruses, and Insects. Harvard University Press, Cambridge.
  • Esau, Katherine (1969). The Phloem. (Handbuch der Pflanzenanatomie, Histologie Band 5, Teil 2). Gebrüder Borntraeger, Berlin.
  • Esau, Katherine (1977). Anatomy of Seed Plants, 2nd Edition. John Wiley & Sons, New York, ISBN 0-471-24520-8


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  2. "Dr. Esau's family is Mennonite. Dr. Esau's great-grandfather Aron Esau immigrated to the Ukraine in 1804 from Prussia." Evert, Ray F. (October 1985) "Katherine Esau: address given by President-Elect Ray F. Evert, University of Wisconsin" Plant Science Bulletin 31(5):
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  6. National Science Foundation – The President's National Medal of Science
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Further reading

  • Evert, Ray F., Eichhorn, Susan E., Esau's Plant Anatomy: Meristems, Cells, and Tissues of the Plant Body: Their Structure, Function, and Development, John Wiley & Sons, 3rd ed. (2006), ISBN 0-470-04737-2
  • O'Hern, Elizabeth Moot (1985) "Katherine Esau" Profiles of Pioneer Women Scientists Acropolis Books, Washington, D.C. ISBN 0-87491-811-1
  • Stebbins, G.L. 1999. Katherine Esau (3 April 1898 – 4 June 1997). Proceedings of the American Philosophical Society, Vol. 143
  • Pigg, K.B. 2007. Katherine Esau. in New Dictionary of Scientific Biography, N. Koertge ed. vol 2: 413-416, MacMillan, New York.

External links