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Erwin Baur
Born	(1875-04-16)16 April 1875 Ichenheim, Grand Duchy of Baden
Died	2 December 1933(1933-12-02) (aged 58)
Known for	Plant virology; discovery of the inheritance of plastids
Scientific career
Fields	Plant genetics
Institutions	Kaiser Wilhelm Institute for Breeding Research, Müncheberg, Germany

Erwin Baur (16 April 1875, in Ichenheim, Grand Duchy of Baden – 2 December 1933) was a German geneticist and botanist. Baur worked primarily on plant genetics. He was director of the Kaiser Wilhelm Institute for Breeding Research (then in Müncheberg, now in Cologne, and since 1938 the Erwin Baur-Institute). Baur is considered to be the father of plant virology. He discovered the inheritance of plastids.^[1]

In 1908 Baur demonstrated a lethal gene in the Antirrhinum plant. In 1909 working on the chloroplast genes in Pelargonium (geraniums) he showed that they violated four of Mendel's five laws. Baur stated that

plastids are carriers of hereditary factors which are able to mutate.
in variegated plants, random sorting out of plastids is taking place.
the genetic results indicate a biparental inheritance of plastids by egg cells and sperm cells in pelargonium.

Since the 1930s and the work of Otto Renner, plastid inheritance became a widely accepted genetic theory.

In 1921 and 1932, together with Fritz Lenz and Eugen Fischer, Baur coauthored two volumes that became the book Menschliche Erblichkeitslehre (Human Heredity), which was a major influence on the racial theories of Adolf Hitler. The work served a chief inspiration for biological support in Hitler's Mein Kampf.^[2]

References

^ Hagemann, R. 2000. Erwin Baur or Carl Correns: who really created the theory of plastid inheritance? Archived 2005-03-16 at the Wayback Machine. Journal of Heredity 91:435-440.
^ "Human biodiversity: genes, race, and history", Jonathan M. Marks. Transaction Publishers, 1995. p. 88. ISBN 0-202-02033-9, ISBN 978-0-202-02033-4.

External links

Short Biography, bibliography, and links on digitized sources in the Virtual Laboratory of the Max Planck Institute for the History of Science

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