Our living environment is shaped by millions of organisms interacting with one another and with the non-living world. Among these, fungi play vital—though often hidden—roles. Beneath the soil, many fungi form cord-like networks, sometimes described as “fungal highways,” which function like underground roads. These structures can transport water and nutrients between plants, connect different soil patches, and even act as rapid movement pathways for bacteria. Yet, despite their importance, fungal highways remain surprisingly understudied. Do most fungi build them, or only a few species? Are they widespread across the planet, or restricted to certain habitats?
To help answer these questions, the successful NTU student will join ongoing research to uncover the diversity of fungal cord systems. This will involve using forensic-style techniques to collect fragments of fungal cords from soil and identify them through DNA sequencing. We will also sample mushrooms from the same locations and compare their DNA with the underground networks to understand which fungi build and utilise these structures. Finally, the student will conduct histological analyses using light microscopy—and, optionally, electron microscopy—to examine internal structural differences among fungal cords.
By revealing the diversity and distribution of fungal highways, this project aims to shed light on an overlooked but essential component of ecosystem function.
