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Quinoa SCDY1 Salt-Stress SynCom

Community ID CommunityMech:000459
Ecological State ENGINEERED
Environment Arabidopsis salt-stress plate rhizosphere — ontology label: rhizosphere
ENVO:00005801 · HabitatMech ↗
Modeled Environment quinoa rhizosphere and root endosphere — ontology label: plant-associated environment
ENVO:01001001 · HabitatMech ↗

A nine-isolate synthetic bacterial community discovered by cube-based screening of quinoa-associated isolates for Arabidopsis salt-stress growth promotion. Dangjarean et al. divided 135 quinoa isolates into five 3 x 3 x 3 cubes, treated each layer as a nine-isolate SynCom, and identified SynCom DY1 (SCDY1) as the 100 mM NaCl screening hit. SCDY1 combined Pseudomonas panipatensis-like isolate 82, Stenotrophomonas bentonitica-like isolate 85, Fictibacillus enclensis-like isolate 88, Novosphingobium subterraneum-like isolate 91, Herbaspirillum frisingense-like isolate 94, Acidovorax facilis-like isolate 97, Bacillus atrophaeus-like isolate 100, Priestia megaterium-like isolate 103, and Bacillus subtilis-like isolate 106.

Taxonomy

Taxon Ontology ID Functional Roles Abundance
Pseudomonas panipatensis-like isolate 82 — ontology label: Pseudomonas panipatensis NCBITaxon:428992 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Stenotrophomonas bentonitica-like isolate 85 — ontology label: Stenotrophomonas bentonitica NCBITaxon:1450134 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Fictibacillus enclensis-like isolate 88 — ontology label: Fictibacillus enclensis NCBITaxon:1017270 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Novosphingobium subterraneum-like isolate 91 — ontology label: Novosphingobium subterraneum NCBITaxon:48936 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Herbaspirillum frisingense-like isolate 94 — ontology label: Herbaspirillum frisingense NCBITaxon:92645 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Acidovorax facilis-like isolate 97 — ontology label: Acidovorax NCBITaxon:12916 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Bacillus atrophaeus-like isolate 100 — ontology label: Bacillus atrophaeus NCBITaxon:1452 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Priestia megaterium-like isolate 103 — ontology label: Priestia megaterium NCBITaxon:1404 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"
Bacillus subtilis-like isolate 106 — ontology label: Bacillus subtilis NCBITaxon:1423 · TaxonMech · TraitMech N/A
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VITRO)
    "Based on partial 16S rRNA gene sequences, the nine SCDY1 constituent isolates were closely related to Pseudomonas panipatensis (isolate 82), Stenotrophomonas bentonitica (isolate 85), Fictibacillus enclensis (isolate 88), Novosphingobium subterraneum (isolate 91), Herbaspirillum frisingense (isolate 94), Acidovorax facilis (isolate 97), Bacillus atrophaeus (isolate 100), Priestia megaterium (isolate 103), and Bacillus subtilis (isolate 106)"

Ecological Interactions

The graph shows only explicitly linked interaction participants. Community members without an asserted participant link are omitted; membership alone does not imply an interaction.

Ecological interaction network for Quinoa SCDY1 Salt-Stress SynCom Bipartite graph where circles represent taxa and non-circular symbols represent interactions. Rare or untyped interactions share the Other symbol; exact curated types remain in the interaction details.
Taxon
Other

SCDY1 Arabidopsis salt-stress growth promotion

SCDY1 improved Arabidopsis root elongation and biomass under moderate sodium-chloride stress, with the clearest overall response at 120 mM NaCl. This is a host-growth outcome, not evidence of reciprocal fitness benefits to the plant and bacterial members.

Evidence

  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VIVO)
    "SCDY1 promoted primary root elongation and biomass accumulation in a salinity-dependent manner, with the clearest effect under 120 mM NaCl"

Knowledge gaps & discussions (1)

KNOWLEDGE_GAP OPEN Does SCDY1 confer reciprocal fitness benefits, and which mechanisms mediate the plant-growth response?

The cited preprint abstract supports plant growth under salt stress and recovery of a subset of bacteria; recoverability alone does not establish bacterial benefit or unaffected fitness. Host transcriptional and root-hair responses are not demonstrated causal mediators. The complete preprint body was not retrieved in this review, so missing access is not evidence that additional controls are absent. The independently retrieved accepted journal abstract corroborates the endpoint, but does not supersede the historical preprint evidence. No COMMENSALISM substitution or previously removed recovery/epidermal node is added.

Attaches to: ecological_interactions#SCDY1 Arabidopsis salt-stress growth promotion

External Resources

Name Repository Resource ID
Primary quinoa SCDY1 salt-stress SynCom preprint
bioRxiv DOI for the 2026 preprint describing cube-based screening of quinoa bacterial isolates and SCDY1 validation in Arabidopsis salt-stress assays. 		OTHER doi:10.64898/2026.07.15.738596
  • doi:10.64898/2026.07.15.738596 - SUPPORT (OTHER)
    "Cube-based screening identifies a quinoa-derived synthetic microbial community that promotes plant growth and modulates root epidermal responses under salt stress"

Environmental Factors

Factor Value Unit
primary NaCl screening stress 100 mM NaCl
  • doi:10.64898/2026.07.15.738596 - SUPPORT (IN_VIVO)
    "Screening under 100 mM NaCl identified SynCom DY1 (SCDY1) as a candidate salt stress-mitigating consortium."
moderate Arabidopsis salt stress 120 mM NaCl

Cross-Mech Suite Links

Explore related entities across the CultureBotAI X-Mech knowledge bases:

HabitatMech: Arabidopsis salt-stress plate rhizosphere ↗ TaxonMech: Pseudomonas panipatensis-like isolate 82 ↗ TraitMech: Pseudomonas panipatensis-like isolate 82 ↗ TaxonMech: Stenotrophomonas bentonitica-like isolate 85 ↗ TraitMech: Stenotrophomonas bentonitica-like isolate 85 ↗ TaxonMech: Fictibacillus enclensis-like isolate 88 ↗ TraitMech: Fictibacillus enclensis-like isolate 88 ↗ TaxonMech: Novosphingobium subterraneum-like isolate 91 ↗ TraitMech: Novosphingobium subterraneum-like isolate 91 ↗ TaxonMech: Herbaspirillum frisingense-like isolate 94 ↗ TraitMech: Herbaspirillum frisingense-like isolate 94 ↗ TaxonMech: Acidovorax facilis-like isolate 97 ↗ TraitMech: Acidovorax facilis-like isolate 97 ↗ CultureMech Growth Media ↗ PathwayMech Pathways ↗