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Journal of Plant Growth Regulation

, Volume 35, Issue 1, pp 163–171 | Cite as

Increase in Salt Tolerance of Arabidopsis thaliana by TaDi19

  • Yonggang Fan
  • Sule Zhang
  • Yaoyao Meng
  • Zhanjing Huang
Article
  • 303 Downloads

Abstract

The gene expression profile chip of salt-resistant wheat mutant RH8706-49 under salt stress was investigated. The overall length of the cDNA sequence of the probe was obtained using electronic cloning and RT-PCR. An unknown gene induced by salt was obtained, cloned, and named TaDi19 (Triticum aestivum drought-induced protein). No related report or research on the protein is available. qPCR analysis showed that gene expression was induced by many stresses, such as salt. Arabidopsis thaliana was genetically transferred using the overexpressing gene, which increased its salt tolerance. After salt stress, the transgenic plant demonstrated better physiological indicators (higher Ca2+ and lower Na+) than those of the wild-type plant. Results of non-invasive micro-test technology indicate that TaDi19-overexpressing A. thaliana significantly effluxed Na+ after salt treatment, whereas the wild-type plant influxed Na+. Chelating extracellular Ca2+ resulted in insignificant differences in salt tolerance between overexpressing and wild-type A. thaliana. Subcellular localization showed that the gene encoding protein was mainly located in the cell membrane and nucleus. TaDi19 was overexpressed in wild-type A. thaliana, and the transgenic lines were more salt-tolerant than the control A. thaliana. Thus, the wheat gene TaDi19 could increase the salt tolerance of A. thaliana.

Keywords

Arabidopsis thaliana Non-invasive micro-test technology Salt stress Subcellular location Wheat 

Notes

Acknowledgments

This study was supported by the National Natural Science Fund (30971766) and the Hebei Provincial Natural Science Fund (No. C2009000278).

Supplementary material

344_2015_9513_MOESM1_ESM.pdf (1.4 mb)
Supplementary material 1 (PDF 1447 kb)

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Yonggang Fan
    • 1
  • Sule Zhang
    • 1
  • Yaoyao Meng
    • 1
  • Zhanjing Huang
    • 1
  1. 1.College of Life ScienceHebei Normal UniversityShijiazhuangPeople’s Republic of China

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