Posidonia seagrass meadows, veritable underwater forests, play a major ecological role. Under constant pressure from human activity, scientists are looking for ways to ensure their survival, in particular by carrying out restoration campaigns. A study conducted by the University of Liège at the marine and oceanographical research station STARESO (Calvi, Corsica) reveals that the transplantation method directly influences the root microbiome, which is essential for the survival of the plants....