Max Delbrück
Max Delbrück United States[3] | |
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Alma mater | University of Göttingen |
Known for |
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Spouse | Mary Bruce |
Children | Four |
Parent |
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Relatives | Emmi Bonhoeffer (sister) |
Awards |
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Scientific career | |
Fields | Biophysics |
Institutions | Kaiser Wilhelm Institute for Chemistry Vanderbilt University Caltech |
Doctoral advisor | Lise Meitner |
Doctoral students | Lily Jan, Yuh Nung Jan, Ernst Peter Fischer, Charles M. Steinberg |
Max Ludwig Henning Delbrück (German:
Early and personal life
Delbrück was born in
Delbrück's brother Justus, a lawyer, as well as his sister
Education
Delbrück studied astrophysics, shifting towards theoretical physics, at the University of Göttingen. After completing his Ph.D. there in 1930,[11] he traveled through England, Denmark, and Switzerland. He met Wolfgang Pauli and Niels Bohr, who interested him in biology.
Career and research
Delbrück returned to Berlin in 1932 as an assistant to
In 1935, Delbrück published a collaboration with Nikolay Timofeev-Ressovsky and Karl Zimmer the major work, Über die Natur der Genmutation und der Genstruktur. It was considered to be a major advance in understanding the nature of gene mutation and gene structure.[13] The work was a keystone in the formation of molecular genetics.[14] It was also an inspirational starting point for Erwin Schrödinger's thinking, a course of lectures in 1943, and the eventual writing of the book What Is Life? The Physical Aspect of the Living Cell.[15]
In 1937, he attained a fellowship from
Although Delbrück's Rockefeller Foundation fellowship expired in 1939, the Foundation matched him up with Vanderbilt University in Nashville, Tennessee, where from 1940 to 1947 he taught physics, yet had his laboratory in the biology department.[21] In 1941, Delbrück met Salvador Luria of Indiana University who began visiting Vanderbilt.[21] In 1942, Delbrück and Luria published on bacterial resistance to virus infection mediated by random mutation.[21] Alfred Hershey of Washington University in St. Louis began visiting in 1943.[21] The Luria–Delbrück experiment, also called the Fluctuation Test, demonstrated that Darwin's theory of natural selection acting on random mutations applies to bacteria as well as to more complex organisms. The 1969 Nobel Prize in Physiology or Medicine was awarded to both scientists in part for this work. To put this work in its historical perspective, Lamarck in 1801 first presented his theory of Inheritance of Acquired Characteristics, which stated that if an organism changes during life in order to adapt to its environment (for example stretches its neck to reach for tall trees), those changes are passed on to its offspring. He also said that evolution happens according to a predetermined plan. Darwin published his theory of evolution in his 1859 book On the Origin of Species with compelling evidence contradicting Lamarck. Darwin said that evolution is not predetermined but that there are inherent variations in all organisms, and that those variations that confer increased fitness are selected by the environment and passed on to the offspring. In the feud between Lamarck and Darwin, Darwin talked of pre-existing changes, but the nature of these changes was not known and had to await the science of genetics by Gregor Mendel's experiments on pea plants published in 1866. Support for Darwin's theory was provided when Thomas Hunt Morgan discovered that a mutated white-eyed fruit fly among red-eyed flies was able to reproduce true white-eyed offspring. The most elegant and convincing support for Darwin's ideas, however, was provided by the Luria-Delbruck experiment,[22][23][24] which showed that mutations conferring resistance of the bacterium E. coli to T1 bacteriophage (virus) existed in the population prior to exposure to T1 and were not induced by adding T1. In other words, mutations are random events that occur whether or not they prove to be useful, while selection (for T1 resistance upon challenge with T1 in this case) provides the direction in evolution by retaining those mutations that are advantageous, discarding those that are harmful (T1 sensitivity in this case). This experiment dealt a blow to Lamarckian inheritance and set the stage for tremendous advances in genetics and molecular biology, launching a tsunami of research that eventually led to the discovery of DNA as the hereditary material and to cracking the genetic code. Of course, by then Avery, along with McCloud (and earlier, McCarty) was well on the way to showing the genetic capability of DNA.
In 1945, Delbrück, Luria, and Hershey set up a course in
Awards and honours
In addition to the Nobel Prize, Delbrück was elected a
Later life and legacy
Delbrück helped spur
Max Delbrück died, at age 74, on the evening of Monday, March 9, 1981, at
References
- ^ JSTOR 769892.
- ^ a b "Max Delbrück EMBO profile". people.embo.org. Heidelberg: European Molecular Biology Organization.[permanent dead link]
- ^ a b "Max Delbrück". Encyclopædia Britannica. Encyclopædia Britannica, Inc. Archived from the original on December 26, 2018. Retrieved June 25, 2013.
A refugee from Nazi Germany, Delbrück went to the United States in 1937, serving as a faculty member of the California Institute of Technology (1937–39; 1947–81) and of Vanderbilt University (1940–47). He became a U.S. citizen in 1945.
- ^ "The Nobel Prize in Physiology or Medicine 1969". Nobel Foundation. Archived from the original on May 26, 2013. Retrieved June 25, 2013.
- ^ a b "The Nobel Prize in Physiology or Medicine 1969" Archived June 27, 2018, at the Wayback Machine, Nobel Media AB 2013, Nobelprize.org, Web access November 6, 2013.
- PMID 11616207.
- S2CID 13630670.
- S2CID 12282400.
- ^ "https://www.ini.uzh.ch/~tobi/ Archived January 10, 2023, at the Wayback Machine"
- ^ "https://ieeexplore.ieee.org/document/8050295 Archived October 17, 2022, at the Wayback Machine"
- ^ "Max Delbrück Archived January 27, 2019, at the Wayback Machine". Encyclopaedia Britannica. britannica.com. Retrieved January 27, 2019.
- from the original on October 15, 2012. Retrieved July 22, 2012.
- ^ Timofeeff-Ressovky, N. W., K. G. Zimmer, and M. Delbrück "Über die Natur der Genmutation und der Genstruktur" (Weidmannsche Buchhandlung, 1935). Nachrichten Göttingen Archived March 3, 2022, at the Wayback Machine - "Über die Natur der Genmutation und der Genstruktur" (1935).
- PMC 5499177
- ^ Erwin Schrödinger What Is Life? The Physical Aspect of the Living Cell (Cambridge University Press, 1944).
- ^ "MDC celebrates centennial of Max Delbrück". Max Delbrück Center for Molecular Medicine Berli-Buch. September 4, 2006.
- ^ Stefanie Tapke. "Max Delbrück – Biographical". Biographical article. Nobel Media. Archived from the original on June 12, 2018. Retrieved September 13, 2013.
- PMID 19873108
- ISBN 978-0-87969-800-3
- ^ Max Delbrück and the Next 100 Years of Biology: The Max Delbrück Vanderbilt Centenary Celebration, The Inaugural Vanderbilt Discovery Lecture Archived November 19, 2012, at the Wayback Machine, Held September 14, 2006
- ^ a b c d e f g "Max Delbrück at Vanderbilt, 1940–1947" Archived October 11, 2012, at the Wayback Machine, Vanderbilt University, Web access November 6, 2013.
- PMC 1209226
- ISBN 978-0-87969-800-3
- ^ Luria SE. A Slot Machine, a Broken Test Tube. An Autobiography. Harper and Row, New York, 1984. Alfred P. Sloan Foundation Series
- ^ J.D. Watson (2012). "James D Watson: Chancellor emeritus" Archived December 11, 2013, at the Wayback Machine, Cold Spring Harbor Laboratory.
- ISBN 978-0-393-02508-8.
- from the original on April 28, 2012. Retrieved July 22, 2012.
- ISBN 0-521-59939-3
- ISBN 0-87969-478-5.
- ^ Kiryn Haslinger. Max Delbruck 100. Archived September 23, 2015, at the Wayback Machine HT Winter 2007.
- PMC 1275794.
External links
- Max Delbrück on Nobelprize.org
- Delbrück page at Cold Spring Harbor Laboratory website.
- Letter from Jim Watson – Delbrück was instrumental in getting fellowship support for Watson so that he could stay in Cambridge, play tennis, and discover the rules of nucleotide base pairing in DNA. This is a letter from Watson to Delbrück that describes the discovery.
- Interview with Max Delbrück Oral History Project, California Institute of Technology Archives, Pasadena, California.
- Caltech Photo Archives of Max Delbrück
- The Official Site of Louisa Gross Horwitz Prize
- Key Participants: Max Delbrück – Linus Pauling and the Race for DNA: A Documentary History
- National Academy of Sciences Biographical Memoir