Claim · model-written summary
Plant growth was generally worst in endophytic tall fescue plants under drought.
- Taxon
- tall fescue
Lolium arundinaceume1 - Treatment
- endophytic plantse0
- Outcome
- plant growthe0
- Direction
- worste0
- Qualifier
- under droughte0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“plant growth generally worst in endophytic plants under drought”
e1“tall fescue ( Lolium arundinaceum )”
Title
Scott N. Johnson; Rebecca K. Vandegeer; David T. Tissue; et al. Agriculture Ecosystems & Environment 2026. doi:10.1016/j.agee.2026.110505
Other claims from this paper (10)
- Intervention effect Drought reduced shoot mass of tall fescue by up to 33%.
- Intervention effect Drought reduced groundcover of tall fescue by up to 45%.
- Intervention effect Drought adversely affected physiological responses of tall fescue such as leaf gas exchange.
- Intervention effect Silicon supplementation had no ameliorative impact on drought effects in tall fescue.
- Intervention effect Epichloe endophytes had no ameliorative impact on drought effects in tall fescue.
- Intervention effect Drought caused tall fescue to accumulate around 21% less silicon than well-watered plants.
- Intervention effect Simulated grazing prior to drought helped tall fescue sustain silicon uptake to levels akin to well-watered plants.
- Intervention effect Development of the insect pest Helicoverpa armigera was unaffected by endophytes in tall fescue.
- Intervention effect Helicoverpa armigera development decreased by 92% when feeding on silicon-supplemented tall fescue plants.
- Mechanism The authors suggest grazed tall fescue sustained silicon uptake under drought potentially as a survival strategy to resist herbivory.