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DNA Research Advance Access originally published online on April 21, 2006
DNA Research 2006 13(2):53-63; doi:10.1093/dnares/dsl001
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© The Author 2006. Kazusa DNA Research Institute
The online version of this article has been published under an open access model. Users are entitled to use, reproduce, disseminate, or display the open access version of this article for non-commercial purposes provided that: the original authorship is properly and fully attributed; the Journal and Oxford University Press are attributed as the original place of publication with the correct citation details given; if an article is subsequently reproduced or disseminated not in its entirety but only in part or as a derivative work this must be clearly indicated. For commercial re-use, please contact journals.permissions@oxfordjournals.org

The Rice 14-3-3 Gene Family and its Involvement in Responses to Biotic and Abiotic Stress

Fang Chen, Qun Li, Liangxian Sun and Zuhua He*

National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences 300 Fenglin Road, Shanghai 200032, China

14-3-3 proteins function as major regulators of primary metabolism and cellular signal transduction in plants. However, their involvement in plant defense and stress responses is largely unknown. In order to better address functions of the rice 14-3-3/GF14 proteins in defense and abiotic stress responses, we examined the rice GF14 family that comprises eight numbers. The phylogenetic comparison with the Arabidopsis 14-3-3 family revealed that the majority of rice GF14s might have evolved as an independent branch. At least four rice GF14 genes, GF14b, GF14c, GF14e and Gf14f were differentially regulated in the interactions of rice-Magnaporthe grisea and rice-Xanthomonas oryzae pv. oryzae, and the incompatible interactions stronger induced the genes than the compatible interactions. These GF14 genes were also induced by the defense compounds, benzothiadiazole, methyl jasmonate, ethephon and hydrogen peroxide. Similarly, they were differentially regulated by salinity, drought, wounding and abscisic acid. Tissue-specific analysis and expression of GF14-YFP fusions revealed that the four GF14 isoforms were expressed with tissue specificity and accumulated differentially in the cytoplasm and nucleus. Our current study provides fundamental information for the further investigation of the rice GF14 proteins.

Key words: rice; 14-3-3 family; biotic and abiotic stress; expression regulation; subcellular localization

*To whom correspondence should be addressed. Tel. +86-21-54924121, Fax. +86-21-54924015, E-mail: zhhe{at}sibs.ac.cn

Communicated by Satoshi Tabata


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Plant Physiology, February 1, 2007; 143(2): 670 - 683.
[Abstract] [Full Text] [PDF]


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