Plant Cell Reports

, Volume 31, Issue 9, pp 1737–1746 | Cite as

An alfalfa (Medicago sativa L.) ethylene response factor gene, MsERF11, enhances salt tolerance in transgenic Arabidopsis

  • Tingting Chen
  • Qingchuan Yang
  • Xinquan Zhang
  • Wang Ding
  • Margaret Gruber
Original Paper

Abstract

A novel orthologue of ethylene response factor gene, MsERF11, was isolated from alfalfa in this study. It has an open reading frame of 807 bp, encoding a predicted polypeptide of 268 amino acids. Sequence similarity analysis clearly suggested that MsERF11 encoded an ethylene response factor protein. The results of transient expression of MsERF11 in onion epidermal cells indicated that MsERF11 is a nuclear protein. The expression pattern of MsERF11 gene was analyzed by real-time quantitative PCR and a higher level of expression was observed in leaves than was observed in roots, stems, flower buds and flowers. Furthermore, the expression was induced by PEG6000, NaCl, Al2(SO4)3 and six different hormones. Over-expressing MsERF11 resulted in enhanced tolerances to salt stress in transgenic Arabidopsis plants. This research indicates that MsERF11 has the potential to be used for improving crop’s salt tolerance in areas where salinity is a limiting factor for agricultural productivity.

Key messageMsERF11 was isolated from alfalfa. Its expression was induced by different abiotic stresses and hormones. Over-expressing MsERF11 resulted in enhanced salt tolerance in transgenic Arabidopsis plants.

Keywords

Alfalfa Ethylene response factor gene Expression analysis Subcellular localization Arabidopsis transformation Salt stress 

Notes

Acknowledgments

This work was supported by the earmarked fund for Modern Agro-industry Technology Research System (No. CARS-35), the National Key Technology R&D Program (2011BAD17B01-01-3) and the National Science and Technology Supporting Project (2011BAD17B03).

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Tingting Chen
    • 1
    • 2
  • Qingchuan Yang
    • 1
  • Xinquan Zhang
    • 2
  • Wang Ding
    • 1
  • Margaret Gruber
    • 3
  1. 1.Institute of Animal Science, Chinese Academy of Agricultural SciencesBeijingPeople’s Republic of China
  2. 2.Department of Grassland Science, Animal Science and Technology CollegeSichuan Agricultural UniversityYa’anPeople’s Republic of China
  3. 3.Saskatoon Research CentreAgriculture and Agri-Food CanadaSaskatoonCanada

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