Daniel I. Arnon Photo

Daniel I. Arnon

Born: Nov 14, 1910

Death: Dec 20, 1994

Birthplace: Warsaw

Nationality: Poland

Daniel I. Arnon

Date of Birth : Nov 14, 1910
Date of Death : Dec 20, 1994
Birth Place : Warsaw

Daniel Israel Arnon was a Polish-born American plant physiologist whose research led to greater insights into the operation of photosynthesis in plants. In 1973, he was awarded the National Medal of Science for "his fundamental research into the mechanism of green plant utilization of light to produce chemical energy and oxygen and for contributions to our understanding of plant nutrition." Arnon was born on November 14, 1910, in Warsaw. Summers spent on the family's farm helped foster Arnon's interest in agriculture. His father had lost the family's food wholesale business after World War I and Arnon's readings of the works of Jack London led him to save up his money to head to California. He enrolled in the University of California, Berkeley from Poland, and would spend his entire professional career at the school, until his retirement in 1978. He ultimately earned his Ph.D. in plant physiology at UC Berkeley under Dennis R. Hoagland and some of his earliest research focused on growing plants in nutrient-enriched water rather than in the soil.

Also known as


  • Daniel Israel Arnon
  • Daniel Arnon

Awards Won


  • Guggenheim Fellowship for Natural Sciences, US & Canada
  • National Medal of Science for Biological Sciences
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