Claim · model-written summary
Nitrogen addition did not change the presence of endophytic nitrogen-fixing bacteria in Scots pine needles.
- Taxon
- Scots pine
Pinus 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.

Verbatim
e0“there was no difference in the presence or activity of nitrogen-fixing bacteria between the two treatments”
e1“native Scots pine (Pinus sylvestris L.) needles”
e2“control plots and fertilized plots”
Title
Tinkara Bizjak; Anita Sellstedt; Regina Gratz; et al. Tree Physiology 2023. doi:10.1093/treephys/tpad048
Other claims from this paper (4)
- Intervention effect Nitrogen addition did not change activity of endophytic nitrogen-fixing bacteria in Scots pine needles.
- Observation The estimated forest stand nitrogen fixation rate was 20 g N ha-1 year-1.
- Observation Ten of thirteen candidate bacterial colonies isolated from pine needles fixed nitrogen in vitro.
- Observation Sequencing identified bacterial isolates in six genera.