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André Jagendorf

Plant physiologist
Jagendorf in 2016

André Tridon Jagendorf (October 21, 1926 – March 13, 2017) was an American plant biologist and educator. He was a Liberty Hyde Bailey Professor Emeritus in the Section of Plant Biology[1][2] at Cornell University. He was known for providing direct evidence that chloroplasts synthesize adenosine triphosphate (ATP) using the chemiosmotic mechanism proposed by Peter Mitchell.[3]

Jagendorf was born in New York City on October 21, 1926.[4] He studied at Cornell University, at Yale University and at the University of California, Los Angeles. Jagendorf died in Ithaca, New York from a heart attack on March 13, 2017, aged 90.


  1. Cobb, Edward D. (2013). 150 Years of Botany at Cornell: A History of Botany and Plant Biology (second printing, first ed.). Ithaca, NY: Cornell University. pp. 101–102, 123–124.
  2. Kass, L. B.; E. Cobb (2007). "Landmarks and Milestones in American Plant Biology: The Cornell Connection". Plant Science Bulletin 53 (3): 90–101. Retrieved September 14, 2016. 
  3. Jagendorf, A. T. (2002). "Photophosphorylation and the chemiosmotic perspective". Photosynthesis Research 73: 233–241. 
  4. Lindeberg, Magdalen. "André Jagendorf celebrates 90th birthday". School of Integrative Plant Science, Ccornell University. Retrieved March 15, 2017.

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