Qualify cellulose-MFC metabolite transfer and remove localization causality #1324

Source-based self-adversarial finding

Record: kb/communities/Clostridium_Cellulolyticum_Geobacter_Cellulose_MFC_Coculture.yaml (CommunityMech:000175). Reviewed at db05129c5f8a9fb47b6ed716405dce1be845a207.

PMID:17695929 (primary abstract) supports binary cellulose-to-electricity conversion, negative pure-culture controls and increased CMC degradation. Its hydrogen/acetate/ethanol list describes residual metabolites, not direct measurement that all three are consumed by Geobacter. MUTUALISM on electricity production additionally asserts reciprocal fitness beyond the accessible comparisons.

PMID:18725730 (primary abstract) reports FISH/qPCR spatial distributions on particulate cellulose, with both partners in suspension and biofilm on soluble CMC. The spatial-distribution node's arrow to electricity production upgrades localization into causal necessity or benefit without a supporting localization perturbation in the accessible evidence.

Acceptance

• Preserve the supported conversion arrow and measured degradation/current outcomes.
• Separate residual pools from partner-resolved uptake, and functional complementarity from reciprocal fitness.
• Retain substrate-dependent localization, including the soluble-substrate comparison; remove its unsupported causal arrow and categorical niche interpretation.
• Record the abstract-bounded source scope and a focused mechanistic gap; add regression coverage and append-only history.

Public DOI routes were inaccessible in this review; a public search and author-institution records did not yield a body. This is an access-attempt limit, not an assertion that no body exists. Issue dedup searched all 665 existing issue titles/bodies and ignored/hidden local review/history/research/test files; comments were not exhaustively searched. #965 concerns a different methane panel.