← Back to Communities

Rice-Duckweed Bacillus Biocontrol SynCom

Community ID CommunityMech:000058
Ecological State ENGINEERED
Environment rice rhizosphere in rice-duckweed agroecosystem
ENVO:00005801

An 8-member, Bacillus-dominated synthetic community (SynCom) assembled from a rice-duckweed agroecosystem by targeting taxa consistently shared across soil, root and shoot niches. The SynCom concurrently promotes rice growth and suppresses sheath blight caused by Rhizoctonia solani, reducing the final disease index by 70% without detectable phytotoxicity. Leave-one-member perturbations reveal a division-of-labor architecture: individual strains specialize in auxin production, siderophore-linked iron mobilization, or lipopeptide/polyketide-based antagonism, yielding complementary yet partially redundant contributions that render community performance resilient to single-member loss. 8 members total; strain-level identifiers available in supplementary data.

Taxonomy

Taxon Ontology ID Functional Roles Abundance
Bacillus sp. (auxin producer) NCBITaxon:1386
CROSS_FEEDER
N/A
Bacillus sp. (siderophore producer) NCBITaxon:1386
CROSS_FEEDER
N/A
Bacillus sp. (lipopeptide antagonist) NCBITaxon:1386
PRIMARY_DEGRADER
N/A
Bacillus sp. (polyketide antagonist) NCBITaxon:1386
PRIMARY_DEGRADER
N/A

Ecological Interactions

Ecological interaction network for Rice-Duckweed Bacillus Biocontrol SynCom Bipartite graph where circle nodes represent taxa and colored rectangles represent ecological interactions (cross-feeding, mutualism, syntrophy, competition, commensalism).
Taxon
Cross-feeding
Mutualism
Syntrophy
Competition
Commensalism

Division-of-Labor Growth Promotion

MUTUALISM

Metabolites: indole-3-acetic acid (CHEBI:16411), acetoin (CHEBI:15688), 2,3-butanediol (CHEBI:16982)

Evidence

  • PMID:41736136 - SUPPORT (IN_VIVO)
    "complementary yet partially redundant contributions mapped members, metabolite pools, plant outcomes and rendered community performance resilient to single-member loss"

Antimicrobial Biocontrol of Sheath Blight

COMPETITION

Source Taxon: Bacillus SynCom

Target Taxon: Rhizoctonia solani

Metabolites: surfactin (CHEBI:29681)

Evidence

  • PMID:41736136 - SUPPORT (IN_VIVO)
    "SynCom concurrently promoted rice growth and suppressed sheath blight caused by Rhizoctonia solani, reducing the final disease index by 70% without detectable phytotoxicity"

Environmental Factors

Factor Value Unit
Host Plant Oryza sativa (rice) N/A
Co-cultivated Plant Lemna minor (duckweed) N/A
Growth Conditions Greenhouse N/A