Multigen Arabidopsis

Charles Darwin first described how plant stems grow in a corkscrew fashion, but how it happens was unclear.

The Multigen experiment on the International Space Station showed in 2007 it is driven by an interplay of light and gravity driving cell signals in the plants. 

The Aradopsis plants were grown in ESA’s European Modular Cultivation System – a miniature greenhouse to probe how plants grow in weightlessness.