The study looked at how soil microbes in wheat fields respond to high ozone levels. They planted wheat in fields and exposed it to different ozone levels. They found that high ozone levels reduced the amount of carbon in the soil and changed the types of microbes present in the soil near the roots. Both the soil near the roots and away from the roots were affected by ozone, with fewer fungi and actinomycetes but more bacteria. This shows that high ozone levels can change the function and composition of soil microbes, which can impact soil health and nutrient availability.