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38 changes: 38 additions & 0 deletions kb/communities/THOR_Rhizosphere_Model_Community.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -221,6 +221,44 @@ ecological_interactions:
evidence_source: IN_VITRO
snippet: production of more robust biofilms by the three members together than individually
explanation: Supports biofilm formation as an emergent three-member community phenotype.
cultivation_setup:
- cultivation_mode: BATCH
operating_temperature: 28.0
operating_temperature_unit: °C
instrument_detail: >-
Liquid culture in half-strength tryptic soy broth at 28 °C with vigorous shaking, with
strains propagated on 1/10-strength tryptic soy agar. Interactions were also assayed on
plates and across three media - LB, half-strength TSB, and soybean root exudate - because
which interactions appear depends on the medium: the inhibition among these strains shows
up predominantly under the lower-nutrient condition.
notes: >-
No `system_type` or `working_volume`. The source says "liquid culture" and names the
broth, never the vessel or the fill, and the interaction assays run on both plates and in
liquid - so a single vessel value would misdescribe half the experiments rather than
approximate them.

Nutrient level is recorded as part of the setup rather than as an environmental factor
because it is a manipulated variable here: dilute TSA and TSB are chosen, and the paper's
point is that antagonism among the three members is medium-dependent. A record showing
only "TSB" would lose the half-strength, which is where the interactions are.

Media and temperature are stated for the strains generally, which for a three-member
model community assembled from those strains is also the coculture's condition; the
coculture sentences name the same media (#529).
evidence:
- reference: PMID:30837345
supports: SUPPORT
evidence_source: IN_VITRO
snippet: Bacterial strains were propagated on 1/10-strength tryptic soy agar (TSA) and grown
in liquid culture in 1/2-strength tryptic soy broth (TSB) at 28°C with vigorous shaking
explanation: Temperature, agitation, and the two dilute media the community is grown on.
- reference: PMID:30837345
supports: SUPPORT
evidence_source: IN_VITRO
snippet: Rhizosphere isolates were grown alone or in coculture with P. koreensis CI12 in soybean
root exudate
explanation: Cocultures were run in root exudate as well as defined broth.

environmental_factors:
- name: Rhizosphere Origin
value: Field-grown soybean root/rhizosphere-associated isolates
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