Skip to main content
Log in

The abscisic acid receptor gene VvPYL4 positively regulates grapevine resistance to Plasmopara viticola

  • Original Article
  • Published:
Plant Cell, Tissue and Organ Culture (PCTOC) Aims and scope Submit manuscript

Abstract

Downy mildew is one of the most serious diseases threatening grapevine cultivation. The PYR/PYL/RCAR proteins, which act as abscisic acid (ABA) receptors, are multifunctional, highly conserved, and reportedly play a crucial role in plant stress resistance in the ABA signaling pathway. In this study, we cloned a putative abscisic acid receptor gene, VvPYL4, from the ‘Beta’ grapevine cultivar. An analysis of the subcellular localization demonstrated that overexpressed VvPYL4 was localized in both the cytoplasm and the nucleus. The resistance of grapevine cultivars to downy mildew increased after the application of the exogenous hormones MeJA and ABA. The expression of VvPYL4 was significantly induced when exposed to Plasmopara viticola, MeJA, and ABA. The transcript of the VvPYL4 gene in ‘Beta’ grapevine leaves treated with tobacco rattle virus-induced gene silencing (VIGS) was significantly down-regulated. Silencing VvPYL4 had a slight effect on P. viticola resistance. Furthermore, silencing VvPYL4 significantly altered the transcripts of ABA and JA responsive genes, including the ABA signaling pathway-related genes ABF1, SnRK2.2, and PP2C2, as well as the genes related to the JA signaling pathway, MYC2, JAR1, and JAZ. Altogether, the data provide new evidence that VvPYL4 positively regulates grapevine response to downy mildew. This study also discusses the regulation mechanism of VvPYL4 on ABA and JA signaling transduction. Finally, these results provide a basis for additional research on the mechanisms behind grapevine resistance to downy mildew.

Key message

Silencing VvPYL4 impaired resistance to P. viticola, and this was associated with inhibited the expression of the ABA and JA signaling pathway-related genes. P. viticola, MeJA, and ABA induced the up-regulated expression of VvPYL4.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

Download references

Acknowledgements

This research was supported by the Special Fund for AgroScientific Research in the Public Interest of the People’s Republic of China (201203035), and Funded Projects for Science and Technology Development Plan of Liaoning Province of China (No. 2018103003). For the technical assistance during the data analysis, we would like to thank Bioeditas Technology Corporation (Shanxi, China).

Author information

Authors and Affiliations

Authors

Contributions

CYL conceived and designed the research. LL performed the experiments, analyzed the data and wrote the manuscript. HW, SYY, TSG, YFH, RCL participated in some experiments and data analysis. All authors reviewed the manuscript.

Corresponding author

Correspondence to Chang-Yuan Liu.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Communicated by Maria Margarida Oliveira.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 17 kb)

Supplementary file2 (DOCX 14 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Liu, L., Liu, CY., Wang, H. et al. The abscisic acid receptor gene VvPYL4 positively regulates grapevine resistance to Plasmopara viticola. Plant Cell Tiss Organ Cult 142, 483–492 (2020). https://doi.org/10.1007/s11240-020-01872-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11240-020-01872-9

Keywords

Navigation