📜 Theorem, law or theory

Discovery of chemosynthesis

Descubrimiento de la quimiosíntesis

Date
1880s-1890 · confidence medium
Place
Strasbourg, France
Credited to
Sergei Winogradsky
Field
Life & health

What was discovered

Studying sulfur, iron and nitrogen bacteria, Winogradsky shows that certain microorganisms obtain all their energy by oxidising inorganic compounds, without needing sunlight or organic matter.

Winogradsky carried out this research between Strasbourg and Zurich through the 1880s before formulating it in 1890; the term 'chemosynthesis' was coined shortly after by botanist Wilhelm Pfeffer.

What it led to

  • Recognition of a third mode of nutrition alongside photo- and heterotrophy
  • Explanation of hydrothermal-vent ecosystems without sunlight
  • Microbiology of the sulfur, iron and nitrogen cycles

Links

Sources✓ verified 2026-09-25