Claim · model-written summary
No evidence was found for overall enhancement of cell expansion in response to gravity in Kalanchoë stems.
- Taxon
- Kalanchoëe1
- Treatment
- in response to gravitye7
- Outcome
- cell expansione7
- Direction
- no evidence for overall enhancemente7
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e1“Gravitropic response of Kalanchoë stems was analyzed in terms of instantaneous curvature along the stem, relative elemental growth rates, and epidermal cell dimensions”
e7“Analysis of epidermal cell dimensions reveals that, in general, there is a redistribution of cell elongation potential to the lower side of the gravistimulated stem but no evidence for overall enhancement of cell expansion in response to gravity”
Title
Gravitropic Response of Kalanchoë Stems
Roger D. Meicenheimer; Thomas A. Nackid International Journal of Plant Sciences 1994. doi:10.1086/297177
Other claims from this paper (8)
- Observation A bimodal pattern of instantaneous curvature along the stem axis of Kalanchoë was detected at the end of the gravitropic response.
- Observation Growth-rate oscillations in Kalanchoë stems showed complex spatial and temporal patterns in both gravistimulated and unstimulated control stems.
- Association Spatial and temporal growth oscillations appear to be overridden by local changes in growth rate in gravistimulated Kalanchoë stems.
- Intervention effect Rate of growth in Kalanchoë stems is initially depressed in response to reorientation in the gravitational field.
- Intervention effect Rate of growth in Kalanchoë stems is then stimulated after reorientation in the gravitational field.
- Association Growth rate is amplified on the lower side of gravistimulated Kalanchoë stems, with a basipetal migration.
- Association Growth rate returns to oscillatory on the upper side of gravistimulated Kalanchoë stems.
- Association Cell elongation potential is redistributed to the lower side of gravistimulated Kalanchoë stems.