Claim · model-written summary
Elevated CO2 improved pine photosynthetic nitrogen use efficiency only with living soil inoculant.
- Taxon
- Pinus sylvestris
Pinus sylvestrist0 - Treatment
- eCO2 conditionse1
- Outcome
- plant photosynthetic nitrogen use efficiencye0
- Direction
- improvede0
- Comparator
- sterilized soil inoculante0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“improved plant photosynthetic nitrogen use efficiency, but only in the presence of living versus sterilized soil inoculant”
e1“under eCO2 conditions”
t0“Pinus sylvestris”
Title
Hupperts, Stefan Epsilon Open Archive (Sveriges lantbruksuniversitet biblioteket (Swedish University of Agricultural Sciences)) 2026
Other claims from this paper (8)
- Intervention effect Elevated CO2 stimulated pine seedling productivity only with living soil inoculant.
- Association The magnitude of the elevated CO2 response depended on forest soil inoculant source.
- Association The response was linked to a 70% increase in bacterial species richness.
- Association The response was linked to increased relative abundance of growth-promoting bacteria.
- Association The response coincided with a shift in saprotrophic fungal composition and root growth.
- Observation Inorganic nitrogen cycling under elevated CO2 favored nitrate accumulation.
- Association Nitrate-favoring nitrogen cycling correlated with a twofold reduction in photosynthetic nitrogen use efficiency.
- Intervention effect Different microbial communities affected pine productivity more strongly than doubled atmospheric CO2.