A 25-strain Variovorax collection from Populus roots, screened for bacterial effects on Arabidopsis thaliana thermotolerance using a rapid hydroponic assay. Six strains (CF313, YR634, GV004, GV035, YR752, OV084) significantly improve plant heat tolerance at 45C. CF313 was selected for detailed follow-up study. The thermal benefit requires direct contact with living bacteria; heat-killed bacteria and culture supernatants provide no protection.
Taxonomy
| Taxon | Ontology ID | Functional Roles | Abundance |
|---|---|---|---|
| Variovorax sp. CF313 | NCBITaxon:34072 | N/A | |
| Variovorax sp. YR634 | NCBITaxon:34072 | N/A | |
| Variovorax sp. GV004 | NCBITaxon:34072 | N/A | |
| Variovorax sp. GV035 | NCBITaxon:34072 | N/A | |
| Variovorax sp. YR752 | NCBITaxon:34072 | N/A | |
| Variovorax sp. OV084 | NCBITaxon:34072 | N/A |
Ecological Interactions
Taxon
Cross-feeding
Mutualism
Syntrophy
Competition
Commensalism
Bacterially-mediated plant thermotolerance
MUTUALISMSource Taxon: Variovorax
Target Taxon: Arabidopsis thaliana
Biological Processes:
- response to heat (GO:0009408)
Evidence
-
PMID:37386471 - SUPPORT (IN_VIVO)"A follow-up study demonstrated the reproducibility of this assay and led to the discovery of a novel beneficial interaction"
-
PMID:37386471 - SUPPORT (IN_VIVO)"The throughput and reproducibility of the system is ideal for testing many genetic variants of Arabidopsis and bacterial strains"
Environmental Factors
| Factor | Value | Unit |
|---|---|---|
| Heat shock temperature | 45 | degrees Celsius |