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Growing soil microbes in Winogradsky columns

The image on the left is soil on the first day, the image in the middle is two weeks later. The image on the right is a column that has been growing for several years.
The conditions within a Winogradsky column allow microorganisms to grow into visible and colourful colonies.
Rights: The University of Waikato Te Whare Wānanga o Waikato
Published: 16 May 2016Size: 214.43 KB