By using two different transparent soil substitutes, scientists have shown that soil bacteria rely on fungi to help them survive dry periods, says a study published today in eLife.
The findings indicate that these soil-like substrates may enable researchers to observe the complex interactions of the myriad microscopic creatures that live in soil. This ability is crucial to help us better understand the role that soil and soil microbes play in healthy ecosystems.
Millions of microscopic organisms such as fungi and bacteria live in the soil. They are essential for healthy ecosystems because they support the growth of plants and capture and store carbon from the atmosphere. But studying these processes in real soil can be challenging.
“To advance the study of soil processes, we used transparent soil substitutes that allowed us to use microscopes and other experimental techniques to see and measure the activity of soil bacteria and determine how this activity depends on the fungi,” says lead author Kriti Sharma, who completed the study as a doctoral student at the University of North Carolina at Chapel Hill, US, and is now a postdoctoral scholar at Caltech, Pasadena, US.
Read more at eLife
Image: Fungal filaments (false-coloured pink) grown in liquid (left) or transparent soil (right) (Credit: Sharma et al. (CC BY 4.0))