Early dental graph: separate measured coaggregation from acidification mediation #1417

Early_Dental_Biofilm_FiveSpecies.yaml, PMID:21966490, https://doi.org/10.1371/journal.pone.0025299.

Two planktonic coaggregation assays were not selective perturbations of biofilm acidification. Remove both assay-to-acidification arrows; retain physical association without categorical colonization facilitation. Retain glucose-responsive extracellular pH heterogeneity as a five-member outcome, not demonstrated niche partitioning or species-specific acid flux. Primary Discussion proposes an adhesion mechanism but does not demonstrate either pair mediates the pH response. No new nodes or edges are needed.

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