Deep Gas Well Water Harbors Thousands of Undescribed Fungi

A study in Michigan found 4,200–6,800 fungal cells per milliliter in water from gas wells over 500 meters deep, yielding 205 pure cultures and evidence of potentially novel lineages. The finding expands known subsurface biosphere limits, though the ecological role and broader implications remain uncertain. It matters for understanding deep microbial life and potential bioprospecting, but has no immediate market impact.