ArticlePlant physiology2021
The role of auxin and sugar signaling in dominance inhibition of inflorescence growth by fruit load.
Article in Plant physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 32 citations in OpenAlex.
- Potassium and methionine mitigate the alternate bearing of Balady mandarin via reducing gibberellins and increasing salicylic acid and auxins.Scientific reports · 2025Article
- Siblicide between fertilized and unfertilized ovaries within the maize ear.Communications biology · 2025Article
- Transcriptome study on the effect of leaf-fruit ratio on molecular regulation mechanism of Camellia oleifera.BMC plant biology · 2025Article
- Sugar Transport and Signaling in Shoot Branching.International journal of molecular sciences · 2024Review
- The CRK14 gene encoding a cysteine-rich receptor-like kinase is implicated in the regulation of global proliferative arrest in Arabidopsis thaliana.Genes to cells : devoted to molecular & cellular mechanisms · 2024Article
- Transcription factors HB21/40/53 trigger inflorescence arrest through abscisic acid accumulation at the end of flowering.Plant physiology · 2024Article
- Natural variations of HvSRN1 modulate the spike rachis node number in barley.Plant communications · 2024Article
- Flowering also has to end: knowns and unknowns of reproductive arrest in monocarpic plants.Journal of experimental botany · 2023Review
- Colorful hues: insight into the mechanisms of anthocyanin pigmentation in fruit.Plant physiology · 2023Article
- Just enough fruit: understanding feedback mechanisms during sexual reproductive development.Journal of experimental botany · 2023Review
- Cytokinin signaling regulates two-stage inflorescence arrest in Arabidopsis.Plant physiology · 2023Article
- Tapping into the plasticity of plant architecture for increased stress resilience.F1000Research · 2023Review
- Early defoliation induces auxin redistribution, promoting paradormancy release in pear buds.Plant physiology · 2022Article
- Genetic and molecular factors in determining grain number per panicle of rice.Frontiers in plant science · 2022Review
- Architecture and plasticity: optimizing plant performance in dynamic environments.Plant physiology · 2021Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dominance inhibition of shoot growth by fruit load is a major factor that regulates shoot architecture and limits yield in agriculture and horticulture crops. In annual plants, the inhibition of inflorescence growth by fruit load occurs at a late stage of inflorescence development termed the end of flowering transition. Physiological studies show this transition is mediated by production and export of auxin from developing fruits in close proximity to the inflorescence apex. In the meristem, cessation of inflorescence growth is controlled in part by the age-dependent pathway, which regulates the timing of arrest. Here, we show the end of flowering transition is a two-step process in Arabidopsis (Arabidopsis thaliana). The first stage is characterized by a cessation of inflorescence growth, while immature fruit continues to develop. At this stage, dominance inhibition of inflorescence growth by fruit load is associated with a selective dampening of auxin transport in the apical region of the stem. Subsequently, an increase in auxin response in the vascular tissues of the apical stem where developing fruits are attached marks the second stage for the end of flowering transition. Similar to the vegetative and floral transition, the end of flowering transition is associated with a change in sugar signaling and metabolism in the inflorescence apex. Taken together, our results suggest that during the end of flowering transition, dominance inhibition of inflorescence shoot growth by fruit load is mediated by auxin and sugar signaling.
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