Log in

HMA3 is a key factor for differences in Cd- and Zn-related phenotype between Arabidopsis Ws and Col-0 ecotypes

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

Abstract

Columbia-0 (Col-0) appears to be less tolerant to cadmium (Cd) than the Wassilewskija (Ws) ecotype that exhibits the full Heavy Metal ATPase3 (HMA3) coding sequence. However, the physiological and molecular mechanisms of HMA3 encoded by point mutation genes in Col-0 remain unknown. In this study, we investigate whether the different metal-related phenotype observed in Col-0 (with HMA3 mutation) when compared to that of Ws (functional HMA3) is a result only of the HMA3 mutation. This investigation was carried out with a further study using plant materials as follows: Ws and Col-0 ecotypes, two HMA3 (Ws) overexpressing lines in Col-0, hma3 knock-out line in Ws. The results indicate that the Col-0 and hma3 mutant in Ws were less tolerant to Cd and Zn because HMA3 has lost the function of sequestration of Cd and Zn into the root vacuoles, thereby readily translocating Cd and Zn to the aerial parts. In addition, the root-to-shoot metal translocation rates of the Ws- and HMA3-overexpressing lines were lower than those of the Col-0 and hma3 mutants. These results indicate that HMA3 is important for the Cd and Zn detoxification in Arabidopsis.

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

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

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

Similar content being viewed by others

References

Download references

Acknowledgements

This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (2014R1A6A3A01059173 and 20141A1A4A01009621). This work was also supported by a grant from the Next-Generation BioGreen 21 Program (SSAC, Grant#: PJ01108102), Rural Development Administration, Republic of Korea.

Author information

Authors and Affiliations

Authors

Contributions

In this study, Won Park contributed to experimental conception, design, and writing the article. Dr. Sung-Ju Ahn participated in designing the study and revised the manuscript. All authors contributed to the article to be completed.

Corresponding author

Correspondence to Sung-Ju Ahn.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 1929 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Park, W., Ahn, SJ. HMA3 is a key factor for differences in Cd- and Zn-related phenotype between Arabidopsis Ws and Col-0 ecotypes. Plant Biotechnol Rep 11, 209–218 (2017). https://doi.org/10.1007/s11816-017-0447-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11816-017-0447-6

Keywords

Navigation