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Add Saccharomyces-Acinetobacter lignocellulose detox coculture community#65

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claude/scerevisiae-abaylyi-community
May 17, 2026
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Add Saccharomyces-Acinetobacter lignocellulose detox coculture community#65
realmarcin merged 2 commits into
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claude/scerevisiae-abaylyi-community

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Summary

Curate a new community YAML (`CommunityMech:000263`) from the orphan cache PMID:38711153 (Salusjärvi et al. 2024 Biotechnol Biofuels, "Enhanced upgrading of lignocellulosic substrates by coculture of Saccharomyces cerevisiae and Acinetobacter baylyi ADP1").

Defined two-member synthetic coculture, well-supported by the single source paper.

Members:

  • engineered Saccharomyces cerevisiae (NCBITaxon:4932, PRIMARY_DEGRADER) — lactic acid producer
  • engineered Acinetobacter baylyi ADP1 (NCBITaxon:202950, CROSS_FEEDER) — furan aldehyde detoxifier and wax-ester producer from S. cerevisiae byproducts

Interactions:

  1. Furan Aldehyde Detoxification Cross-Protection (COMMENSALISM) — A. baylyi bioconverts furfural and 5-HMF without competing for substrates, raising S. cerevisiae lactic acid productivity ~1.5× over monoculture (to 0.41 ± 0.08 g/L/h).
  2. Carbon Diversion to Wax Esters (CROSS_FEEDING) — residual carbon and byproducts from S. cerevisiae are diverted by A. baylyi into wax ester biosynthesis.

Plus one environmental factor: furan aldehyde inhibitors (furfural and 5-HMF) in synthetic lignocellulosic hydrolysate.

Test plan

  • `just validate kb/communities/Saccharomyces_Acinetobacter_Lignocellulose_Detox_Coculture.yaml` — no schema issues
  • `just validate-references kb/communities/Saccharomyces_Acinetobacter_Lignocellulose_Detox_Coculture.yaml` — passes (all snippets are verbatim substrings of the cached PubMed abstract)

🤖 Generated with Claude Code

Curate a new community YAML (CommunityMech:000263) from the orphan
cache PMID:38711153 (Salusjarvi et al. 2024 Biotechnol Biofuels,
"Enhanced upgrading of lignocellulosic substrates by coculture of
Saccharomyces cerevisiae and Acinetobacter baylyi ADP1"). Defined
two-member synthetic coculture, well-supported by a single PMID
with a complete abstract.

Members:
- engineered Saccharomyces cerevisiae (NCBITaxon:4932,
  PRIMARY_DEGRADER) - lactic acid producer.
- engineered Acinetobacter baylyi ADP1 (NCBITaxon:202950,
  CROSS_FEEDER) - furan-aldehyde detoxifier and wax-ester producer
  from S. cerevisiae byproducts.

Interactions:
- Furan Aldehyde Detoxification Cross-Protection (COMMENSALISM):
  A. baylyi bioconverts furfural and 5-HMF without competing for
  substrates, raising S. cerevisiae lactic acid productivity ~1.5x
  over monoculture (to 0.41 +/- 0.08 g/L/h).
- Carbon Diversion to Wax Esters (CROSS_FEEDING): residual carbon
  and byproducts from S. cerevisiae are diverted by A. baylyi into
  wax ester biosynthesis.

Environmental factor: furan aldehyde inhibitors (furfural and 5-HMF)
in synthetic lignocellulosic hydrolysate.

All snippets are verbatim substrings of the cached PubMed abstract.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Copilot AI review requested due to automatic review settings May 17, 2026 08:23
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Pull request overview

Adds a new curated CommunityMech knowledge-base entry (CommunityMech:000263) describing an engineered, two-member Saccharomyces cerevisiae + Acinetobacter baylyi ADP1 coculture for lignocellulosic hydrolysate detoxification and product formation, backed by PMID:38711153.

Changes:

  • Introduces a new community YAML with engineering design metadata, member taxonomy, and evidence-backed interactions.
  • Encodes two ecological interactions (detoxification cross-protection; carbon diversion to wax esters) plus an inhibitor environmental factor.

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Comment thread kb/communities/Saccharomyces_Acinetobacter_Lignocellulose_Detox_Coculture.yaml Outdated
- S. cerevisiae functional_role: PRIMARY_DEGRADER -> SECONDARY_FERMENTER.
  Per the schema, PRIMARY_DEGRADER is "degrades complex substrates";
  in this system the yeast produces lactic acid from already-
  hydrolysed sugars (fermentative role), so SECONDARY_FERMENTER fits.
- biological_processes term label fix: GO:0009410 is actually
  "response to xenobiotic stimulus" (confirmed via QuickGO and OLS),
  not "response to toxic substance". My preferred_term already had
  the right text; I had the label wrong. Aligned the label to match.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@realmarcin realmarcin merged commit c587aa8 into main May 17, 2026
@realmarcin realmarcin deleted the claude/scerevisiae-abaylyi-community branch May 17, 2026 08:34
@realmarcin realmarcin mentioned this pull request May 18, 2026
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2 participants