Multi-Year Biofilm Formation on Granitic Surfaces Reveals Dynamic Microbial Communities in Fennoscandian Shield Deep Groundwaters

Magnus Ståhle, Anders Johnson, Stephanie Turner, Per Mårtensson, Birgitta Kalinowski, Mark Dopson · 2026

Read Multi-Year Biofilm Formation on Granitic Surfaces Reveals Dynamic Microbial Communities in Fennoscandian Shield Deep Groundwaters by Magnus Ståhle, Anders Johnson, Stephanie Turner, Per Mårtensson, Birgitta Kalinowski, Mark Dopson (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13283197.txt.

Description

Granite left for years in deep Fennoscandian groundwater grows its own mature microbe film, Magnus Stahle and partners show in 2026. Deep rock hosts most Earth microbe mass, yet most studies sample free-floating cells. Films on rock may hold far more cells and distinct species.

Rock pieces sat in deep water for two and four years in total. Gene tests compared film cells with free cells in the water. Films selected distinct species mixes and changed over time in clear ways. Early films were shaped by added cells that later faded from the surfaces. Mature films were ruled by sulfur-using groups and tiny partner cells. Film life differs sharply from life in open water.

Catalog record

CREATORMagnus Ståhle, Anders Johnson, Stephanie Turner, Per Mårtensson, Birgitta Kalinowski, Mark Dopson
YEAR2026
COLLECTIONPAPERS
FORMATTXT
FILE SIZE39181
LICENSEhttps://creativecommons.org/licenses/by/4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/article/MED/PMC13283197

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