Claim · model-written summary
Sufficiently large salinity changes persistently reduced leaf elongation.
- Taxon
- maize and barley
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Hordeum vulgare
Zea mayse1 - Treatment
- sufficiently large changes in salinitye0
- Outcome
- leaf elongation ratese0
- Direction
- reducede0
- Qualifier
- persistentlye0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“With sufficiently large changes in salinity, leaf elongation rates are persistently reduced”
e1“water-stressed maize and barley”
Title
Water relations and leaf expansion: importance of time scale
Rana Munns; John B. Passioura; Jianmin Guo; et al. Journal of Experimental Botany 2000. doi:10.1093/jexbot/51.350.1495
Other claims from this paper (9)
- Association Sudden changes in humidity, light and salinity greatly but often transiently affected leaf elongation.
- Intervention effect Maintaining full turgor by root pressurization eliminated transient and persistent leaf elongation changes after sudden environmental shifts.
- Intervention effect Over days, pressurization failed to sustain high leaf elongation in saline soil.
- Intervention effect Over days, pressurization failed to sustain high leaf elongation in drying soil.
- Intervention effect In saline and drying soil, pressurization increased daytime growth rate.
- Observation A subsequent dark-period decrease offset daytime gains, leaving no net 24-hour leaf growth effect in saline and drying soil.
- Intervention effect Under very high transpirational demand, pressurization increased net 24-hour leaf growth.
- Mechanism The authors infer that rapid leaf elongation responses to water stress arise from water relations rather than root signals.
- Mechanism The authors infer that root signals override water-relation effects over days.