Claim · model-written summary
Ethylene partially reversed dormancy from all three inhibitors only with gibberellic acid or light.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- Ethylene (16 mul/1 of air)e1
- Outcome
- dormancy induced by all three inhibitorse1
- Direction
- partially reversede1
- Qualifier
- only in the presence of 1 mM gibberellic acid (GA) or lighte1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lettuce seeds (Lactuca sativa L., cv. Premier Great Lakes)”
e1“Ethylene (16 mul/1 of air) partially reversed the dormancy induced by all three inhibitors but only in the presence of 1 mM gibberellic acid (GA) or light.”
Title
Reversal of Induced Dormancy in Lettuce by Ethylene, Kinetin, and Gibberellic Acid
James R. Dunlap; Page W. Morgan PLANT PHYSIOLOGY 1977. doi:10.1104/pp.60.2.222
Other claims from this paper (11)
- Intervention effect High temperature at 32 C significantly inhibited lettuce seed germination.
- Intervention effect Abscisic acid at 0.1 mM significantly inhibited lettuce seed germination.
- Intervention effect Mannitol at 0.4 M significantly inhibited lettuce seed germination.
- Intervention effect Ethylene plus GA or light did not promote germination at 36 C.
- Intervention effect Adding kinetin reversed thermodormancy at 36 C with ethylene plus GA or light.
- Intervention effect Kinetin reversed dormancy imposed by abscisic acid.
- Intervention effect Kinetin could not reverse mannitol-imposed osmotic dormancy.
- Intervention effect In light, kinetin inhibited reversal of osmotic dormancy by ethylene or ethylene plus GA.
- Mechanism Kinetin apparently stimulated cotyledon growth in light, potentially competing for metabolites needed by radicle growth and germination.
- Mechanism The authors infer that kinetin and ethylene regulate a common germination event through different mechanisms.
- Mechanism Ethylene regulation of germination depends on GA and/or light.