spore forming

METPO:1000871 · CLASS · REVIEWED

A sporulation in which an organism has the ability to produce endospores.

Spore-forming endospore assembly mechanism

Evidence-backed causal sketch linking forespore development to cortex synthesis, coat assembly, dipicolinic acid accumulation, and the spore-forming phenotype.

Spore-forming endospore assembly mechanism Interactive directed graph showing evidence-backed causal relationships for spore forming.

Edge evidence

  • forespore develops into resistant endospore biolink:develops_into

    The forespore compartment matures into a resistant endospore.

    • DOI:10.1146/annurev.genet.30.1.297 within which a spore is produced Supports forespore development into the spore.
  • spore cortex contributes to resistant endospore RO:0002326

    Cortex synthesis contributes to endospore structure and resistance.

    • DOI:10.1038/nrmicro2921 spore surface layers Supports specialized spore layers as functional components of the endospore.
  • spore coat protects resistant endospore

    The multilayered coat protects and structures the endospore surface.

    • DOI:10.1038/nrmicro2921 assembly and functions of the multilayered coat Supports the spore coat as a protective assembly.
  • dipicolinic acid contributes to resistant endospore RO:0002326

    Dipicolinic acid contributes to spore resistance and stability.

    • DOI:10.1111/j.1365-2672.2005.02736.x mechanisms are responsible for the resistance of spores Supports chemical and structural factors in Bacillus spore resistance.
  • resistant endospore manifests as spore forming METPO:2007400

    Production of resistant endospores manifests the spore-forming trait.

    • DOI:10.1038/nrmicro2921 production of a highly resistant dormant cell type known as the spore Supports the trait endpoint.
  • SpoIID required for forespore engulfment

    SpoIID is required for forespore engulfment.

    • DOI:10.3390/microbiolres14020035 Genes spoIID, spoIIM, spoIIP are required for engulfment.
  • SpoIIM required for forespore engulfment

    SpoIIM is required for forespore engulfment.

    • DOI:10.3390/microbiolres14020035 Genes spoIID, spoIIM, spoIIP are required for engulfment.
  • SpoIIP required for forespore engulfment

    SpoIIP is required for forespore engulfment.

    • DOI:10.3390/microbiolres14020035 Genes spoIID, spoIIM, spoIIP are required for engulfment.
  • cortex synthesis contributes to resistant endospore RO:0002326

    Cortex synthesis after engulfment contributes to mature spore formation.

    • DOI:10.3390/microbiolres14020035 Cortex synthesis within the intermembrane space and coat assembly follow engulfment.
  • spore coat assembly contributes to spore core protection and dormancy RO:0002326

    Spore coat assembly contributes to core protection, dehydration, and dormancy.

    • DOI:10.3390/microbiolres14020035 Coat proteins influence core protection, spore-core dehydration and dormancy.
  • Spo0E-family phosphatases negatively regulates phosphorylated Spo0A (Spo0A~P)

    Spo0E-family phosphatases dephosphorylate and inhibit Spo0A~P.

    • DOI:10.3390/microbiolres14020035 A second negative control is provided by Spo0E-family Spo0A-specific phosphatases.

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1038/nrmicro2921

Parent traits (1)

Synonyms (2)

  • spore RELATED_SYNONYM · metpo.owl
  • yes RELATED_SYNONYM · metpo.owl

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000871 [+10.788, -112.336, +60.034, -6.588, …]

512-dim DeepWalkSkipGramEnsmallen embedding from kg-microbe (2026-04-25).

Nearest neighbors in embedding space

Top-8 cosine-similar METPO traits from the 2026-04-25 deepwalk (512-D).

Curation history

  1. · SEEDED_FROM_METPO · seed_from_metpo

    imported from data/raw/metpo.owl (CLASS)

  2. · CURATED_WITH_ORGANISM_EXAMPLE · codex

    Added Bacillus subtilis organism example with PMID-backed evidence.

  3. · CURATED_WITH_LITERATURE · codex

    Replaced definition source with DOI-backed endospore source and added causal graph for forespore development, cortex, coat, dipicolinic acid, and resistant endospore formation.

  4. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002326×2).

  5. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (biolink:develops_into×1).

  6. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2007400×1).

  7. · GROUND_CAUSAL_NODES · claude

    Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (GO:0042763×1, CHEBI:46837×1).

  8. · ENRICH_CAUSAL_GRAPH · claude

    Added 6 evidence-backed generic edges (9 new nodes) from the deep-research report.

  9. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002326×2).

  10. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (GO:0031160×1).

  11. · GROUND_CAUSAL_NODES · claude

    Grounded 3 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:A0A0M6WLJ0×1, UniProtKB:A5N7K0×1, UniProtKB:A0A1S8R940×1).