Claim · model-written summary
When root-zone temperature was decreased below a threshold, leaf growth was strongly inhibited during the day.
- Taxon
- Ricinus communis
Ricinus communist1 - Treatment
- Root coolingt0
- Outcome
- leaf growthe0
- Direction
- strongly inhibitede0
- Qualifier
- during the daye0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the root-zone temperature in Ricinus communis was decreased below a threshold value, leaf growth occurred preferentially at night and was strongly inhibited during the day”
t0“Root cooling”
t1“Ricinus communis”
Title
RICHARD POIRÉ; HEIKE SCHNEIDER; MICHAEL R. THORPE; et al. Plant Cell & Environment 2009. doi:10.1111/j.1365-3040.2009.02090.x
Other claims from this paper (12)
- Intervention effect When root-zone temperature was decreased below a threshold, leaf growth occurred preferentially at night.
- Intervention effect Root cooling rapidly decreased leaf expansion and shoot biomass growth.
- Intervention effect Root cooling rapidly decreased root elongation and ramification.
- Intervention effect Root cooling diminished carbon fluxes from shoot to root.
- Intervention effect Root cooling increased carbohydrate contents of both root and shoot.
- Intervention effect Root cooling did not affect transpiration rate.
- Intervention effect Root cooling increased hydrostatic tensions in shoot xylem.
- Intervention effect When root temperature was increased again, xylem tension reduced.
- Intervention effect When root temperature was increased again, leaf growth recovered rapidly.
- Intervention effect When root temperature was increased again, carbon fluxes from shoot to root increased.
- Intervention effect When root temperature was increased again, carbohydrate pools were depleted.
- Mechanism The authors hypothesize that decreased water uptake in cool roots diminishes the growth potential of the entire plant.