AOBPreview originally published online on June 1, 2006
Annals of Botany 2006 98(2):279-288; doi:10.1093/aob/mcl107
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
INVITED REVIEW |
Could Heat Shock Transcription Factors Function as Hydrogen Peroxide Sensors in Plants?
Department of Biochemistry and Molecular Biology, University of Nevada, Mail Stop 200, Reno, NV 89557, USA
* For correspondence. E-mail ronm{at}unr.edu
Received: 21 December 2005 Returned for revision: 6 February 2006 Accepted: 2 March 2006 Published electronically: 1 June 2006
• Background Heat shock transcription factors (Hsfs) are modular transcription factors encoded by a large gene family in plants. They bind to the consensus sequence ‘nGAAnnTCCn’ found in the promoters of many defence genes, and are thought to function as a highly redundant and flexible gene network that controls the response of plants to different environmental stress conditions, including biotic and abiotic stresses. Hsf proteins encoded by different genes exhibit a high degree of complexity in their interactions. They can potentially bind and activate their own promoters, as well as the promoters of other members of their gene family, and they can form homo- or heterotrimers resulting in altered nuclear localization, as well as enhanced or suppressed transcription.
• Scope In this review, we summarize recent studies on Hsf function in Arabidopsis and tomato and present evidence obtained from microarray expression studies in Arabidopsis that the Hsf gene network is highly flexible and specialized, with specific members and/or member combinations controlling the response of plants to particular stress conditions. In addition, we describe recent studies that support the hypothesis that certain Hsfs function as molecular sensors that directly sense reactive oxygen species (ROS) and control the expression of oxidative stress response genes during oxidative stress.
Key words: Heat shock transcription factors (Hsfs), reactive oxygen species (ROS), abiotic stress, gene network, sensor
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  S. Luhua, S. Ciftci-Yilmaz, J. Harper, J. Cushman, and R. Mittler Enhanced Tolerance to Oxidative Stress in Transgenic Arabidopsis Plants Expressing Proteins of Unknown Function Plant Physiology, September 1, 2008; 148(1): 280 - 292. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D.-S. Zhang, W.-Q. Liang, Z. Yuan, N. Li, J. Shi, J. Wang, Y.-M. Liu, W.-J. Yu, and D.-B. Zhang Tapetum Degeneration Retardation is Critical for Aliphatic Metabolism and Gene Regulation during Rice Pollen Development Mol Plant, July 1, 2008; 1(4): 599 - 610. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Nishizawa, Y. Yabuta, and S. Shigeoka Galactinol and Raffinose Constitute a Novel Function to Protect Plants from Oxidative Damage Plant Physiology, July 1, 2008; 147(3): 1251 - 1263. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Suzuki, S. Bajad, J. Shuman, V. Shulaev, and R. Mittler The Transcriptional Co-activator MBF1c Is a Key Regulator of Thermotolerance in Arabidopsis thaliana J. Biol. Chem., April 4, 2008; 283(14): 9269 - 9275. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. Vandenbroucke, S. Robbens, K. Vandepoele, D. Inze, Y. Van de Peer, and F. Van Breusegem Hydrogen Peroxide-Induced Gene Expression across Kingdoms: A Comparative Analysis Mol. Biol. Evol., March 1, 2008; 25(3): 507 - 516. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Kant, S. Kant, M. Gordon, R. Shaked, and S. Barak STRESS RESPONSE SUPPRESSOR1 and STRESS RESPONSE SUPPRESSOR2, Two DEAD-Box RNA Helicases That Attenuate Arabidopsis Responses to Multiple Abiotic Stresses Plant Physiology, November 1, 2007; 145(3): 814 - 830. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. Ogawa, K. Yamaguchi, and T. Nishiuchi High-level overexpression of the Arabidopsis HsfA2 gene confers not only increased themotolerance but also salt/osmotic stress tolerance and enhanced callus growth J. Exp. Bot., September 20, 2007; (2007) erm184v1. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Ciftci-Yilmaz, M. R. Morsy, L. Song, A. Coutu, B. A. Krizek, M. W. Lewis, D. Warren, J. Cushman, E. L. Connolly, and R. Mittler The EAR-motif of the Cys2/His2-type Zinc Finger Protein Zat7 Plays a Key Role in the Defense Response of Arabidopsis to Salinity Stress J. Biol. Chem., March 23, 2007; 282(12): 9260 - 9268. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. K. Baniwal, K. Y. Chan, K.-D. Scharf, and L. Nover Role of Heat Stress Transcription Factor HsfA5 as Specific Repressor of HsfA4 J. Biol. Chem., February 9, 2007; 282(6): 3605 - 3613. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y.-y. Charng, H.-c. Liu, N.-y. Liu, W.-t. Chi, C.-n. Wang, S.-h. Chang, and T.-t. Wang A Heat-Inducible Transcription Factor, HsfA2, Is Required for Extension of Acquired Thermotolerance in Arabidopsis Plant Physiology, January 1, 2007; 143(1): 251 - 262. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Y. Sakuma, K. Maruyama, F. Qin, Y. Osakabe, K. Shinozaki, and K. Yamaguchi-Shinozaki Colloquium Paper: Dual function of an Arabidopsis transcription factor DREB2A in water-stress-responsive and heat-stress-responsive gene expression PNAS, December 5, 2006; 103(49): 18822 - 18827. [Abstract] [Full Text] [PDF]
|
|