ArticlePlant molecular biology2025
The transcription factor VaWRKY72 from Vitis amurensis positively regulates cold tolerance in Arabidopsis thaliana and grapevine.
Article in Plant molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- VaWRKY26 transcription factor from Vitis amurensis negatively regulates plant cold tolerance.Planta · 2026Article
- Root-Specific Signal Modules Mediating Abiotic Stress Tolerance in Fruit Crops.Plants (Basel, Switzerland) · 2026Review
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Authors and funding
8 authors.
Funding
Abstract
The sensitivity of the Vitis vinifera L. to cold significantly affects both the yield and the quality of its fruit. Members of the WRKY transcription factor (TF) family are involved in the regulation of plant cold tolerance. In this study, we isolated VaWRKY72 from the extremely cold-tolerant grape species Vitis amurensis. The transcript level of VaWRKY72 varied among organs, but was highest in leaves. Bioinformatics analysis shows that VaWRKY72 contains a typical WRKYGQK conserved domain, a structural feature that classifies it within the Group IIb subfamily of WRKY TFs. VaWRKY72 was shown to be distributed in the nucleus and to have transcriptional activation activity in yeast. Through heterologous overexpression in Arabidopsis thaliana and transient transformation in V. vinifera L. ‘Chardonnay’, we identified that VaWRKY72 plays a positive regulatory role in cold tolerance. This correlated with lower malondialdehyde content and electrolyte leakage, reduced accumulation of reactive oxygen species (ROS), but elevated activity of antioxidant enzymes and proline content compared with wild type. Moreover, VaWRKY72 is revealed to act as an up-regulator of numerous genes related to cold responses in transgenic lines. The results establish a basis for understanding the mechanism of cold tolerance and so facilitate molecular breeding in grapevine.
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