Bound KZ assay-inferred catabolic division of labor without asserting directed strain transfer #1540

Finding

kb/communities/Klebsiella_Arthrobacter_KZ_Phenanthrene_Cadmium_SynCom.yaml (CommunityMech:000344) encodes one directed PAIRWISE SZ-3-to-CW-D3T interaction. PMID41365368 reports improved consortium degradation/mineralization and biomass-normalized complementary enzyme activities. The accessible abstract and public publisher preview do not resolve donor-to-recipient transfer or necessary mediation. A directional taxon pair overstates the accessible evidence.

Repair

Preserve the reported positive consortium outcome and upstream/downstream role assignment as a bounded two-member community-level interpretation, retaining exact canonical strain labels/IDs. Do not invent a transferred metabolite, extra node, or arrow. Record the primary access limits and separately track the linked corrigendum and mechanistic verification; this bounded repair does not complete that research.

Acceptance

Append history/discussion, preserve non-graph fields, verify node/participant/anchor scope, snippets, strict schema, network and focused tests. Close only after protected-main merge. Sources: https://pubmed.ncbi.nlm.nih.gov/41365368/ and https://www.sciencedirect.com/science/article/pii/S0960852425017493

Deduplication: searched839 all-state issue titles/bodies and19 scoped local ignored/hidden matches; matching issues1091/595/594 concern cache tooling, not these graph findings. Their bodies were read; not all comments/PRs or matching local files were reviewed. Self-review is not independent approval.