kids encyclopedia robot

Dmitri Ivanovsky facts for kids

Kids Encyclopedia Facts
Quick facts for kids
Dmitri Ivanovsky
Ivanovsky c. 1915
Born (1864-10-28)28 October 1864
Village of Nizy, Gdov Uyezd, Saint Petersburg Governorate, Russian Empire
Died 20 June 1920(1920-06-20) (aged 55)
Nationality Russian
Alma mater University of Saint Petersburg
Known for Discovery of viruses, Tobacco mosaic virus
Scientific career
Fields Virology
Institutions University of Saint Petersburg
University of Warsaw
Taras Shevchenko National University of Kyiv
Donskoy University
Doctoral advisor Andrei Famintsyn
Influences Adolf Mayer
Influenced Wendell Stanley

Dmitri Iosifovich Ivanovsky (alternative spelling Dmitrii or Dmitry Iwanowski; Russian: Дми́трий Ио́сифович Ивано́вский; 28 October 1864 – 20 June 1920) was a Russian botanist, the discoverer of viruses (1892) and one of the founders of virology.


Ivanovsky was born in the village of Nizy, Gdov Uyezd. He studied at the University of Saint Petersburg under Andrei Famintsyn in 1887, when he was sent to Ukraine and Bessarabia to investigate a tobacco disease causing great damage to plantations located there at the time. Three years later, he was assigned to look into a similar disease occurrence of tobacco plants, this time raging in the Crimea region. He discovered that both incidents of disease were caused by an extremely minuscule infectious agent, capable of permeating porcelain Chamberland filters, something which bacteria could never do. He described his findings in an article (1892) and a dissertation (1902). Then he worked at the Imperial University of Warsaw and at Donskoy University in Rostov on Don.

USSR stamp D.Ivanovsky 1964 4k
Soviet stamp from 1964 with Ivanovsky.

In 1898, the Dutch microbiologist Martinus Beijerinck independently replicated Ivanovsky's experiments and became convinced that the filtered solution contained a new form of infectious agent, which he named virus. Beijerinck subsequently acknowledged Ivanovsky's priority of discovery.

kids search engine
Dmitri Ivanovsky Facts for Kids. Kiddle Encyclopedia.