This research identifies the various microorganisms living inside truffles, particularly Tuber magnatum (white truffle) and Tuber macrosporum (black truffle). The study found that a yeast-like fungus called Geotrichum consistently lives in both truffle types and likely helps with spore dispersal through smell-producing compounds. The researchers discovered that different parts of the truffle have different microbial communities, which explains why truffles have such unique flavors and aromas.