Skip to main content
Log in

Plasma membrane-localized H+-ATPase OsAHA3 functions in saline–alkaline stress tolerance in rice

  • Original Article
  • Published:
Plant Cell Reports Aims and scope Submit manuscript

Abstract

Key message

A novel function of plasma membrane-localized H+-ATPase, OsAHA3, was identified in rice, which is involved in saline–alkaline tolerance and specifically responds to high pH during saline–alkaline stress.

Abstract

Saline–alkaline stress causes serious damage to crop production on irrigated land. Plants suffer more severe damage under saline–alkaline stress than under salinity stress alone. Plasma membrane-localized proton (H+) pump (H+-ATPase) is an important enzyme that controls plant growth and development by catalyzing H+ efflux and enabling effective charge balance. Many studies about the role of plasma membrane H+-ATPases in saline–alkaline stress tolerance have been reported in Arabidopsis, especially on the AtAHA2 (Arabidopsis thaliana H+-ATPase 2) gene; however, whether and how plasma membrane H+-ATPases play a role in saline–alkaline stress tolerance in rice remain unknown. Here, using the activation-tagged rice mutant pool, we found that the plasma membrane-localized H+-ATPase OsAHA3 (Oryza sativa autoinhibited H+-ATPase 3) is involved in saline–alkaline stress tolerance. Activation-tagged line 29 (AC29) was identified as a loss-of-function mutant of OsAHA3 and showed more severe growth retardation under saline–alkaline stress with high pH than under salinity stress. Moreover, osaha3 loss-of-function mutants generated by CRISPR/Cas9 system exhibited saline–alkaline stress sensitive phenotypes; staining of leaves with nitrotetrazolium blue chloride (NBT) and diaminobenzidine (DAB) revealed more reactive oxygen species (ROS) accumulation in osaha3 mutants. OsAHA3-overexpressing plants showed increased saline–alkaline stress tolerance than wild-type plants. Tissue-specific expression analysis revealed high expression level of OsAHA3 in leaf, sheath, glume, and panicle. Overall, our results revealed a novel function of plasma membrane-localized H+-ATPase, OsAHA3, which is involved in saline–alkaline stress tolerance and specifically responds to high pH.

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

Similar content being viewed by others

Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

References

Download references

Funding

This research was supported by the National Natural Science Foundation of China (32272027).

Author information

Authors and Affiliations

Authors

Contributions

Z-YX conceptualized and supervised the research. ML performed most of the physiological experiments and plasmid construction. PG performed the screening of activation-tagged lines and some physiological analyses. NN carried out the identification of plant materials. AM established the screening system. WL performed the qPCR analysis. T-JW assisted in caring for the plant materials. D-JY provided helpful suggestions. Z-YX wrote the manuscript. All authors reviewed, revised, and approved the final manuscript.

Corresponding author

Correspondence to Zheng-Yi Xu.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Communicated by Byeong-ha Lee.

Publisher's Note

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

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 2767 kb)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Li, M., Guo, P., Nan, N. et al. Plasma membrane-localized H+-ATPase OsAHA3 functions in saline–alkaline stress tolerance in rice. Plant Cell Rep 43, 9 (2024). https://doi.org/10.1007/s00299-023-03103-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00299-023-03103-9

Keywords

Navigation