Sergei Winogradsky
Russian microbiologist
Died when: 96 years 177 days (1157 months)Star Sign: Virgo
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Sergei Nikolaievich Winogradsky ForMemRS (or Vinohradsky; published under the name of Sergius Winogradsky or M.S.Winogradsky from Ukrainian Mykolayovych Serhiy;
Ukrainian: ?????? ??????????? ?????????????; 1 September 1856 – 25 February 1953) was a Ukrainian microbiologist, ecologist and soil scientist who pioneered the cycle-of-life concept.Winogradsky discovered the first known form of lithotrophy during his research with Beggiatoa in 1887.
He reported that Beggiatoa oxidized hydrogen sulfide (H2S) as an energy source and formed intracellular sulfur droplets.This research provided the first example of lithotrophy, but not autotrophy.
His research on nitrifying bacteria would report the first known form of chemoautotrophy, showing how a lithotroph fixes carbon dioxide (CO2) to make organic compounds.
He is best known in school science as the inventor of the Winogradsky Column technique for the study of sediment microbes.