Claim · model-written summary
GA promoted cell elongation with reduced or no division in decapitated scapes.
- Taxon
- Gerbera jamesonii
Gerbera jamesoniie0 - Treatment
- GAe1
- Outcome
- cell elongation with reduced or no cell divisione1
- Direction
- promotee1
- Comparator
- decapitated scapese1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“In decapitated scapes (receptacle and involucral bracts removed with the inflorescence), GA and IAA promote cell elongation with reduced or no cell division”
Title
Control of Intercalary Growth in the Scape of Gerbera by Auxin and Gibberellic Acid
R. M. Sachs American Journal of Botany 1968. doi:10.2307/2440493
Other claims from this paper (13)
- Intervention effect Gibberellic acid maintained intercalary scape growth after inflorescence removal.
- Intervention effect IAA maintained intercalary scape growth after inflorescence removal.
- Intervention effect IAA usually caused faster and greater elongation than GA.
- Intervention effect Combined GA and IAA promoted faster elongation than either alone.
- Intervention effect Combined hormone treatment could match intact scape elongation rate.
- Intervention effect IAA promoted cell elongation with reduced or no division in decapitated scapes.
- Intervention effect GA promoted cell division and elongation in deflowered scapes.
- Intervention effect IAA promoted cell division and elongation in deflowered scapes.
- Mechanism Bracts and receptacle apparently supply something required for cell division.
- Observation Deflowered and decapitated scapes initially elongated at nearly the same rate.
- Mechanism The initial elongation rate did not depend on cell division.
- Observation Deflowered scapes attained greater ultimate length than decapitated scapes.
- Mechanism Ultimate scape length depended on cell number and division.