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45 changes: 45 additions & 0 deletions kb/communities/Cyprus_Copper_Sulphide_Bioleaching_Consortium.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -190,6 +190,51 @@ ecological_interactions:
conjugal transfer genes found in the same genus, likely belonging to
another plasmid, evidence of intra-plasmid competition
explanation: Supports the CRISPR-spacer-based plasmid competition.
cultivation_setup:
- cultivation_mode: BATCH
operating_temperature: 28.0
operating_temperature_unit: °C
instrument_detail: >-
The consortium was sampled from packed bioleaching column SC3 at the Skouriotissa Mine in
Cyprus, then maintained in the laboratory: incubated at 28 °C without agitation and
sub-cultured ten times at 5% inoculum every two months in MAM with 0.25 g of unsterilised
research-grade chalcopyrite. It was then split and sub-cultured onto chalcocite as well as
chalcopyrite, since the mineral is the variable the study is about.
notes: >-
The mineral is in the setup rather than only among environmental factors because it is
the substrate the community is grown on and the experimental variable at once - the whole
question is how mineral type drives composition. It is also deliberately unsterilised,
which is a choice about what the community is allowed to encounter.

Static, and worth recording for the same reason as the thermophilic cellulose and TCE
records: a mineral-attached acidophile consortium is grown on a settled solid surface, so
"without agitation" is a design decision rather than an omission.

No `system_type` or `working_volume`. The source names neither the vessel nor the fill for
the sub-cultures; the packed column it came from is the field source, not the laboratory
setup, and recording it would describe where the community was found rather than how it
was grown.

Third of the three "likely curatable" predictions in #543, and it holds - but only just.
The community originates in a column at a mine, which is exactly the shape that made
Avena_Rhizosphere unenrichable. What separates them is that this one was then carried into
the laboratory and propagated for ten passages; the sampling is the origin, the
sub-culturing is the cultivation.
evidence:
- reference: PMID:41381092
supports: SUPPORT
evidence_source: IN_VITRO
snippet: Before the experiment, the microbial enrichment was incubated at 28°C without agitation
and sub‐cultured 10 times with a 5% inoculum every 2 months in MAM with 0.25 g unsterilized
research grade chalcopyrite
explanation: Temperature, static operation, transfer regime, medium and mineral substrate.
- reference: PMID:41381092
supports: SUPPORT
evidence_source: IN_VITRO
snippet: microbial consortia from a copper bioleaching column in Cyprus were cultivated on
chalcopyrite (CuFeS2) and then sub‐cultured on chalcocite (Cu2S) and chalcopyrite
explanation: The community was cultivated in the laboratory, and the mineral was varied.

environmental_factors:
- name: Mineral substrate
value: chalcopyrite (CuFeS2) and chalcocite (Cu2S)
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39 changes: 39 additions & 0 deletions kb/communities/ORNL_PMI_Populus_PD10_SynCom.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -566,6 +566,45 @@ ecological_interactions:
snippet: To unravel the underlying metabolic interactions, flux balance analysis was used to model
microbial growth and identify potential metabolic exchanges involved in shaping the microbial communities
explanation: Supports metabolite exchange interactions in community assembly
cultivation_setup:
- cultivation_mode: BATCH
operating_temperature: 30.0
operating_temperature_unit: °C
instrument_detail: >-
Serial-dilution passaging of the ten-member community in liquid culture. Each strain was
grown alone for 48 h, normalised to the lowest OD600 in that medium, then equal volumes
were mixed so the starting inoculum held all ten at roughly equal concentration.
Triplicate cultures were incubated 48 h at 30 °C with shaking at 200 rpm and passaged
every 48 h at 1:10 into fresh medium.
notes: >-
Two media were run in parallel, R2A and MOPS, because the study's question is whether the
same ten strains form different stable communities in different environments. Recording
one would misrepresent the design, so both are named here rather than a single
growth_media entry standing in for them.

No `system_type` or `working_volume`. The 10 mL test tubes named in the source are for the
individual seed cultures; the source does not say what the community passages were run in,
and carrying the seed-culture vessel across would be the preculture error (#529).

Predicted a likely refusal in #543, on the assumption that a plant-associated SynCom lives
on the plant. That was wrong: this community was assembled and passaged in liquid medium
and never put on a Populus root in this study. Recorded because the prediction failing is
the useful part - the remaining candidates there need the same reading rather than
inheriting the guess.
evidence:
- reference: PMID:33995895
supports: SUPPORT
evidence_source: IN_VITRO
snippet: Equal volumes of the normalized culture were mixed together, and the community was
transferred into fresh medium using a 1:10 dilution
explanation: The community itself was passaged, not just its members.
- reference: PMID:33995895
supports: SUPPORT
evidence_source: IN_VITRO
snippet: Triplicate cultures, for both media, were incubated for 48 h at 30 °C with shaking
at 200 rpm
explanation: Temperature, agitation and the 48 h passage interval, for the community cultures.

environmental_factors:
- name: Growth medium context
value: two media environments
Expand Down
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