ArticleInternational journal of molecular sciences2021
Regulation of Flowering Timing by ABA-NnSnRK1 Signaling Pathway in Lotus.
Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 19 citations in OpenAlex.
- Genome-Wide Identification and Analysis of Respiratory Burst Oxidase Homolog (International journal of molecular sciences · 2026Article
- Molecular mechanism of abscisic acid regulating bud-break through the NnTIFY10A/B-NnABI5 module in lotus.Horticulture research · 2026Article
- Physiological and Transcriptomic Dissection of Inflorescence Degeneration inPlants (Basel, Switzerland) · 2026Article
- The Mining for Flowering-Related Genes Based on De Novo Transcriptome Sequencing in the Endangered PlantInternational journal of molecular sciences · 2025Article
- Analysis on morphological characteristics and identification of candidate genes during the flowering development of alfalfa.Frontiers in plant science · 2024Article
- Analysis of bZIP gene family in lotus (Nelumbo) and functional study of NnbZIP36 in regulating anthocyanin synthesis.BMC plant biology · 2023Article
- Screening of Early Flowering Lotus (Plants (Basel, Switzerland) · 2023Article
- Integrated Transcriptome and Targeted Metabolite Analysis Reveal miRNA-mRNA Networks in Low-Light-Induced Lotus Flower Bud Abortion.International journal of molecular sciences · 2022Article
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Authors and funding
5 authors at 1 institution in 1 country.
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Abstract
The lotus produces flower buds at each node, yet most of them are aborted because of unfavorable environmental changes and the mechanism remains unclear. In this work, we proposed a potential novel pathway for ABA-mediated flower timing control in the lotus, which was explored by combining molecular, genetic, transcriptomic, biochemical, and pharmacologic approaches. We found that the aborting flower buds experienced extensive programmed cell death (PCD). The hormonal changes between the normal and aborting flower buds were dominated by abscisic acid (ABA). Seedlings treated with increasing concentrations of ABA exhibited a differential alleviating effect on flower bud abortion, with a maximal response at 80 μM. Transcriptome analysis further confirmed the changes of ABA content and the occurrence of PCD, and indicated the importance of PCD-related SNF1-related protein kinase 1 (NnSnRK1). The NnSnRK1-silenced lotus seedlings showed stronger flowering ability, with their flower:leaf ratio increased by 40%. When seedlings were treated with ABA, the expression level and protein kinase activity of NnSnRK1 significantly decreased. The phenotype of NnSnRK1-silenced seedlings could also be enhanced by ABA treatment and reversed by tungstate treatment. These results suggested that the decline of ABA content in lotus flower buds released its repression of NnSnRK1, which then initiated flower bud abortion.
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