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Poster: Winogradsky Column—Microbial Evolution in a Bottle

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Description

Sergei N. Winogradsky was one of the first microbiologists to study the organisms found in complex biofilm communities. One of the strategies he used to isolate organisms from nature was a miniature model of a pond cross-section that is now called a Winogradsky column. It is a simple device for constructing a stratified ecosystem and provides a visual example of various modes of metabolism and zonation in the microbial world. It is a classic demonstration of the metabolic diversity of prokaryotes. The poster shows the different bacteria found in each zone, their metabolic niches, and the gradients of energy sources.

(This poster is designed to be printed at a maximum of 31.125" x 24".)

Key Terms

Sergei Winogradsky; Winogradsky Column; Microbial Ecology; Gradient; Oxygen Gradient; Zonation; Metabolic Niche; Metabolic Niches; Cyanobacteria; Heterotrophic; Iron Oxidizing; Purple Non-Sulfur; Purple Sulfur; Green sulfur; Sulfate Reducing; Soil; Communities; Biodiversity; Bacteria; Earth History

Version History

Date Published 03.08.12

Materials

Download Poster (JPG) 5 MB

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