ArticleScientific reports2024
CsWRKY29, a key transcription factor in tea plant for freezing tolerance, ABA sensitivity, and sugar metabolism.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Genome-wide identification of WRKY gene family reveals its regulatory role in ABA/CBF-mediated cold adaptation in king grass (Pennisetum purpureum × P. americanum).BMC plant biology · 2026Article
- Brassinosteroid Potentiates Cold-Induced Transcriptome-Metabolome Reprogramming in Tea Plant Leaves: An Integrated Multi-Omics Landscape.International journal of molecular sciences · 2026Article
- Transcriptome-based identification of the WRKY gene family in Polygala tenuifolia Willd. and their response to cold stress.BMC plant biology · 2026Article
- WRKY transcription factors participate in abiotic stress responses mediated by sugar metabolism.Frontiers in plant science · 2025Review
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3 authors.
Funding
Abstract
Tea plants (Camellia sinensis L.) are prone to spring frosts, leading to substantial economic damage. WRKY transcription factors are key in plant abiotic stress responses, yet the role of CsWRKY29 in freezing tolerance is unclear. In this study, quantitative real-time PCR (qRT-PCR) and transient green fluorescent protein assay revealed that CsWRKY29 localizes to the nucleus and its expression is induced by cold and abscisic acid (ABA). CsWRKY29 overexpression in Arabidopsis enhanced freezing tolerance, reduced electrolyte leakage, increased soluble sugars, and boosted superoxide dismutase activity, with upregulated COR genes. These lines also showed heightened ABA and glucose sensitivity. Cold treatment of CsWRKY29-overexpressing lines upregulated AtABI5, AtHXK1, and AtSUS4 compared to wild type, and yeast one-hybrid assays confirmed CsWRKY29 binding to the W-box in the CsABI5 promoter. Furthermore, the application of virus-induced gene silencing (VIGS) technology to reduce CsWRKY29 expression in tea plants revealed a significant decrease in the transcript levels of CsCBFs, CsABI5, CsHXK1, and CsSUS4 in the silenced plants. In summary, our findings indicate that CsWRKY29 may serve as a critical transcription factor that contributes to freezing tolerance, ABA responsiveness, and sugar metabolism within tea plants.
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