Claim · model-written summary
Dark exposure enhanced Ph-PIN1 expression and expression of auxin-signalling genes.
- Taxon
- Petunia hybrida
Petunia ×hybridae0 - Gene
- Ph-PIN1e1
- Outcome
- expression of Ph-PIN1 and of genes controlling auxin signallinge1
- Direction
- enhancede1
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Petunia hybrida”
e1“expression of Ph-PIN1 and of genes controlling auxin signalling, including Ph-IAA14, Ph-ARF8, Ph-ARF10 and Ph-SAUR14, was enhanced”
Title
Huaiyu Yang; Yvonne Klopotek; Mohammad R Hajirezaei; et al. Annals of Botany 2019. doi:10.1093/aob/mcz095
Other claims from this paper (11)
- Association Nitrogen content had a marginal effect on stem-base IAA concentration.
- Intervention effect Dark incubation enhanced stem-base IAA accumulation during root induction independent of nitrogen.
- Mechanism Early IAA accumulation in darkness depended on the upper shoot as an auxin source.
- Intervention effect Apical IAA supply enhanced early IAA accumulation.
- Intervention effect Dark exposure stimulated RNA accumulation of auxin-related genes.
- Intervention effect Nitrogen limitation repressed four auxin-signalling genes, particularly in darkness.
- Mechanism Dark stimulation of rooting depended on polar auxin transport.
- Intervention effect Basal auxin application partially substituted for darkness in rooting.
- Intervention effect Nitrogen limitation strongly depressed the auxin response of root formation.
- Mechanism Authors infer that upper-shoot auxin delivery and stem-base signalling contribute to dark-stimulated rooting.
- Mechanism Authors infer that nitrogen limitation inhibits root formation downstream of auxin signalling.