Hans Fitting (botanist)

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Johannes Theodor Gustav Ernst Fitting (born April 23, 1877 in Halle (Saale) , † July 6, 1970 in Cologne ) was a German botanist .

Life

Born in Halle in 1877, Fitting studied mathematics and natural sciences in Halle and Strasbourg after attending the city ​​high school there . In 1900 he received his doctorate in Strasbourg. math.-nat. He then worked for the plant physiologist Wilhelm Pfeffer in Leipzig before taking up an assistant position in Tübingen in 1902 . After obtaining his habilitation in 1903, Fitting was able to undertake a research trip to Ceylon and Java in 1907 and 1908 with the support of a Reich grant . He then took on a paid full professorship at the University of Strasbourg. In 1910 he moved to Halle as an associate professor. In 1911 he followed a call from Hamburg, where he was appointed director of the botanical state institutes and professor at the colonial institute . From 1912 Fitting worked as director of the botanical garden at the University of Bonn . There he was Dean of the Philosophical Faculty in 1918, 1919 and 1945 and as Rector in 1921 and 1922 . Fitting was a member of several academies, such as the Leopoldina since 1914 and the Prussian Academy of Sciences from 1937 . From 1929 to 1930 he was chairman of the Society of German Natural Scientists and Doctors . In 1952 he was awarded the Cross of Merit (Steckkreuz) of the Federal Republic of Germany, and later he received the Great Cross of Merit.

Johannes Fitting retired in 1949 and died in Cologne in 1970 at the age of 93. He was buried in Bonn's southern cemetery.

Act

Johannes Fitting made important contributions to plant physiology, especially to hapto, geo and phototropism in natural locations. Furthermore, he pointed out the importance of botanical field research for the comparative morphological analysis of characteristics and taxonomy . In 1909 Johannes Fitting isolated a growth-promoting substance from the pollinia of orchids , which was later recognized as indolylacetic acid, and thus discovered the first plant hormone , namely auxin .

Works (selection)

  • Spores in the red sandstone - the macrospores of Pleuromeia? In: Reports of the German Botanical Society, XXV, Brothers Borntraeger, Berlin 1907, pp. 434–442
  • The plant as a living organism , 1917
  • Tasks and goals of a comparative physiology on a geographical basis , 1922
  • The ecological morphology of plants in the light of recent physiological and plant geographical research , 1926
  • The theory of automorphism rings of Abelian groups and their analogue in non-commutative groups , 1933
  • Basics of Heredity , 1949

Web links

personal data
SURNAME Fitting, Hans
ALTERNATIVE NAMES Fitting, Johannes Theodor Gustav Ernst (full name)
BRIEF DESCRIPTION German botanist
DATE OF BIRTH April 23, 1877
PLACE OF BIRTH Halle (Saale)
DATE OF DEATH July 6, 1970
Place of death Cologne