PUBLICATION DATE

2011-01-08

AUTHORS

A. J. Chen, W. Q. Xu, K. J. Wu, Y. Shao, C. W. Lu, Y. B. Luo, L. Li, B. Z. Zhu

TITLE

Overexpression of SlERF1 tomato gene encoding an ERF-type transcription activator enhances salt tolerance

ISSUE

1

VOLUME

58

ISSN (print)

1021-4437

ISSN (electronic)

1608-3407

ABSTRACT

Ethylene-responsive factors (ERFs) play an important role in plant responses to stresses. For this study, we obtained sense- and antisense-SlERF1 transgenic tomato plants to analyze the function of the SlERF1 gene in tomato plants. Overexpression of SlERF1 in tomato plants enhanced salt tolerance during tomato seedling root development. In addition, tomato seedlings overexpressing SlERF1 showed the higher relative water content and lower MDA content and electrolyte leakage; they accumulated more free proline and soluble sugars, as compared with wild-type and antisense-SlERF1 transgenic tomato plants under salt stress. Moreover, SlERF1 activated the expression of stress-related genes, including LEA, P5CS, DREB3-1, and ltpg2 in tomato plants under salt stress. Thus, SlERF1 played a positive role in the salt tolerance of tomato plants.

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37 sg:title Overexpression of SlERF1 tomato gene encoding an ERF-type transcription activator enhances salt tolerance
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