OsSLI1, a Homeodomain Containing Transcription Activator, Involves Abscisic Acid Related Stress Response in Rice Oryza sativa L.Reportar como inadecuado




OsSLI1, a Homeodomain Containing Transcription Activator, Involves Abscisic Acid Related Stress Response in Rice Oryza sativa L. - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

The Scientific World Journal - Volume 2014 2014, Article ID 809353, 9 pages -

Research ArticleState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China

Received 25 March 2014; Accepted 27 May 2014; Published 25 June 2014

Academic Editor: Yong Hwa Cheong

Copyright © 2014 Xi Huang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Homeodomain-leucine zipper type I HD-Zip I proteins are involved in the regulation of plant development and response to environmental stresses. In this study, OsSLI1 Oryza sativa stress largely induced 1, encoding a member of the HD-Zip I subfamily, was isolated from rice. The expression of OsSLI1 was dramatically induced by multiple abiotic stresses and exogenous abscisic acid ABA. In silico sequence analysis discovered several cis-acting elements including multiple ABREs ABA-responsive element binding factors in the upstream promoter region of OsSLI1. The OsSLI1-GFP fusion protein was localized in the nucleus of rice protoplast cells and the transcriptional activity of OsSLI1 was confirmed by the yeast hybrid system. Further, it was found that OsSLI1 expression was enhanced in an ABI5-Like1 ABL1 deficiency rice mutant abl1 under stress conditions, suggesting that ABL1 probably negatively regulates OsSLI1 gene expression. Moreover, it was found that OsSLI1 was regulated in panicle development. Taken together, OsSLI1 may be a transcriptional activator regulating stress-responsive gene expression and panicle development in rice.





Autor: Xi Huang, Min Duan, Jiakai Liao, Xi Yuan, Hui Chen, Jiejie Feng, Ji Huang, and Hong-Sheng Zhang

Fuente: https://www.hindawi.com/



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