Claim · model-written summary
Upright decapitated maize coleoptile segments show strong spontaneous growth three hours after decapitation.
- Organ / stage
- coleoptilese0
- Outcome
- strong spontaneous growth response (SGR)e0
- Direction
- stronge0
- Value
- 3 he0
- Setting
- upright positione0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Decapitated segments from maize (Zea mays L.) coleoptiles oriented vertically in an upright position show a strong spontaneous growth response (SGR) 3 h after decapitation”
Title
Tamimi, S; Trebacz, K; Sievers, A HighWire Press Open Archive
Other claims from this paper (5)
- Intervention effect Inverting decapitated segments markedly reduces the latent period of spontaneous growth.
- Observation Intact-tip coleoptile segments show a weak transient spontaneous growth response when upright.
- Intervention effect Intact-tip coleoptile segments show a typical spontaneous growth response when inverted.
- Observation The observations are inconsistent with the proposed time-dependent increase in auxin sensitivity causing spontaneous growth.
- Association Membrane potential difference and growth rate rise in parallel during spontaneous growth, suggesting a possible PM H + -ATPase role.