Prehistoric plant DNA is being dug up from deep below the Arctic to see if it can help modern-day crops cope with the effects of climate change. Researchers from Heriot-Watt University in Edinburgh are working with European scientists to analyse microbes from the palaeolithic period, when, like today, the planet was becoming warmer.
They release compounds that might help plants retain moisture around the roots, act like glue to help maintain the soil or help the plants take up the nutrition they need. 'We'll be using above-ground controlled growth chambers to see if we can use the bacteria to drought-proof barley, one of Scotland's biggest crops.