Intervention effectmodel-written summary

Phenolic-rich root carbon inhibited Deschampsia growth relative to controls.

A claim from Fine root inputs to soil reduce growth of a neighbouring plant via distinct mechanisms dependent on root carbon chemistry · 2009

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Phenolic-rich root carbon inhibited Deschampsia growth relative to controls.

Taxon
D. caespitosae0
Treatment
phenolic‐rich root C additionse0
Interactor
G. rossiiGeum rossiie1othere0
Outcome
D. caespitosa growthe0
Direction
inhibitede0
Comparator
controlse0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingValueQualifier

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

Geum rossii
Geum rossii · InteractorDenali National Park and Preserve · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Both cellulose and phenolic‐rich root C additions inhibited D. caespitosa growth in field microcosms, relative to controls.”

✓ located verbatim in the source · abstract, characters 1029–1152
e1

“Using two species that co‐dominate alpine moist meadows as a model system (the phenolic‐rich forb Geum rossii , and the fast‐growing grass Deschampsia caespitosa ), we asked whether C from G. rossii fine roots could reduce D. caespitosa growth. We hypothesized that root C would indirectly reduce D. caespitosa growth by stimulating soil microbes, thus restricting plant N supplies. We predicted that this effect could be overcome by fertilization with N. We also hypothesized that G. rossii root phenolics could allelopathically inhibit D. caespitosa growth, and we predicted that direct, allelopathic inhibition would not be reversible with N additions.”

✓ located verbatim in the source · abstract, characters 370–1025

Title

Fine root inputs to soil reduce growth of a neighbouring plant via distinct mechanisms dependent on root carbon chemistry

Courtney L. Meier; Kaleb Keyserling; William D. Bowman Journal of Ecology 2009. doi:10.1111/j.1365-2745.2009.01537.x

Other claims from this paper (7)

Record rev-cf30129f3a7152cdd262e0df6132dab2aeb6a3cadd5096797af064dcbbfec780 · schema claims-v0.9 · position 2 in the model’s answer