Intervention effectmodel-written summary

Nitrogen addition did not change the presence of endophytic nitrogen-fixing bacteria in Scots pine needles.

A claim from Presence and activity of nitrogen-fixing bacteria in Scots pine needles in a boreal forest: a nitrogen-addition experiment · 2023

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen addition did not change the presence of endophytic nitrogen-fixing bacteria in Scots pine needles.

Taxon
Scots pinePinus sylvestrise1
Treatment
fertilized plotse2
Interactor
nitrogen-fixing bacteriae0symbiont
Outcome
presence or activity of nitrogen-fixing bacteriae0
Direction
no differencee0
Comparator
control plotse2

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingValueQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pinus sylvestris
Pinus sylvestris · TaxonHello, I am Bruce on Flickr · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“there was no difference in the presence or activity of nitrogen-fixing bacteria between the two treatments”

✓ located verbatim in the source · abstract, characters 829–935
e1

“native Scots pine (Pinus sylvestris L.) needles”

✓ located verbatim in the source · abstract, characters 446–493
e2

“control plots and fertilized plots”

✓ located verbatim in the source · abstract, characters 583–617

Title

Presence and activity of nitrogen-fixing bacteria in Scots pine needles in a boreal forest: a nitrogen-addition experiment

Tinkara Bizjak; Anita Sellstedt; Regina Gratz; et al. Tree Physiology 2023. doi:10.1093/treephys/tpad048

Other claims from this paper (4)

Record rev-e0dbe5506d4a727c20017725a563fd225f6fe95e7a55fc5725b4281e4457e6e8 · schema claims-v0.9 · position 1 in the model’s answer