Biographical Memoirs Volume 80 (2001) / Chapter Skim
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Daniel I. Arnon
Daniel I. Arnon
Pages 1-21
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13io,qraphicat Memoirs VOLUME 80
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As a result of witnessing the great famines following WorIcl War I, Arnon was attracted to the cause of scientific farming, which he hac! react about in the California novels of his hero lack London.
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his inherent self-cliscipline habits he faithfully maintained. Except for military service during World War II Arnon spent his entire professional career at the University of CaTifornia at Berkeley.
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These sessions generated spiritecl discussions en cl served as an excellent forum for cleveloping icleas en c! future experiments.
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his profession as president en cl vice-presiclent of the American Society of Plant Physiologists en cl was the leacling force in establishing the Annual Review of Plant Physiology and Plant Molecular Biology. In the early 1950s he also lecl successful efforts to broaclen the scope of the journal Plant Physiology to include emerging topics in plant biochemistry.
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Until his retirement his laboratory was well financed: He took pricle in stating that an experiment hacl never been postponed because of lack of funcis. Following his death Arnon's unspent funds formed the nucleus of an endowment that Berkeley's Department of Plant en c!
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Arnon thought the icleal mix was one graduate student to perhaps three or four postdoctoral fellows. At its peak his laboratory consisted!
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. Arnon also remained in contact with his longtime collaborator Harry Tsujimoto, who continual to live in San Francisco following his retirement from the university.
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by a special collection of invited articles published ten years earlier to honor Arnon on the occasion of his seventy-fifth birthday (Physiolog~e Vegetate 73:707-875~. The collection was presented to him at a gala celebration helcl on his birthday at the UC Berkeley Faculty Club when he received the Berkeley Citation.
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We met in his office and, after introductory remarks, he offered me a tenure-track job as an assistant microbiologist in the CaTifornia Agricultural Experiment Station. Having no plans at that point, I accepted his offer en cl joined the Department of Cell Physiology in September 1963.
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Army Air Corps in the course of his wartime military service. In that capacity, cluring 1943-46, he was commanding officer of a project designed to use nutrient culture for the procluction of r- ~~ ~ -afood plants on Ascension Islancl a 34-square-mile area of volcanic origin that server!
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. As a part of this research Arnon was the first to obtain complete photosynthesis outsicle the living cell a feat comparable to that of Buchner's cell-free fermentation.
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An extension of the noncycTic photophosphorylation experiments revealecl that ferrecloxin couIcl also catalyze pseudocyclic photophosphorylation, a light-driven process in which oxygen rather than NADP serves as the acceptor
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In research stemming from the ferrecloxin work Arnon en cl his colleagues cliscoverecl a new path of photosynthetic carbon clioxicle assimilation in bacteria, the reductive carboxylic acid cycle (reverse citric acid cycle)
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His last article, written shortly before his cleath, clescribecl these icleas in cle tall (1995~. In his last clecacle Arnon wrote four short articles chronicling his major discoveries, in his own words, "to set the historical research record straight for posterity." The first article traced the history of the discovery of photophosphorylation, the second complete photosynthesis by isolatecl chIoroplasts, and the third chIoroplast ferredoxin.
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DANIEL I ARNON 17 the Tong struggle before its acceptance by the scientific community.
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Triphosphopyridine nucleotide as a catalyst of photosynthetic phosphorylation. Nature (Lond.J 180:182-85.
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Role of chloroplast ferredoxin in the energy conversion process of photosynthesis.
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24:47-53. 1995 Divergent pathways of photosynthestic electron transfer: The autonomous oxygenic and anoxygenic photosystems.
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