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Int. J. Mol. Sci. 2012, 13(3), 3751-3764; doi:10.3390/ijms13033751
Article

Expression Analysis of Four Peroxiredoxin Genes from Tamarix hispida in Response to Different Abiotic Stresses and Exogenous Abscisic Acid (ABA)

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Received: 3 February 2012; in revised form: 3 March 2012 / Accepted: 6 March 2012 / Published: 21 March 2012
(This article belongs to the Special Issue Advances in Molecular Plant Biology)
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Abstract: Peroxiredoxins (Prxs) are a recently discovered family of antioxidant enzymes that catalyze the reduction of peroxides and alkyl peroxides. In this study, four Prx genes (named as ThPrxII, ThPrxIIE, ThPrxIIF, and Th2CysPrx) were cloned from Tamarix hispida. Their expression profiles in response to stimulus of NaCl, NaHCO3, PEG, CdCl2 and abscisic acid (ABA) in roots, stems and leaves of T. hispida were investigated using real-time RT-PCR. The results showed that the four ThPrxs were all expressed in roots, stems and leaves. Furthermore, the transcript levels of ThPrxIIE and ThPrxII were the lowest and the highest, respectively, in all tissue types. All the ThPrx genes were induced by both NaCl and NaHCO3 and reached their highest expression levels at the onset of stress in roots. Under PEG and CdCl2 stress, the expression patterns of these ThPrxs showed temporal and spatial specificity. The expressions of the ThPrxs were all differentially regulated by ABA, indicating that they are all involved in the ABA signaling pathway. These findings reveal a complex regulation of Prxs that is dependent on the type of Prx, tissue, and the signaling molecule. The divergence of the stress-dependent transcriptional regulation of the ThPrx gene family in T. hispida may provide an essential basis for the elucidation of Prx function in future work.
Keywords: Prx gene; gene expression; Tamarix hispida; abiotic stresses; ABA Prx gene; gene expression; Tamarix hispida; abiotic stresses; ABA
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.

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MDPI and ACS Style

Gao, C.; Zhang, K.; Yang, G.; Wang, Y. Expression Analysis of Four Peroxiredoxin Genes from Tamarix hispida in Response to Different Abiotic Stresses and Exogenous Abscisic Acid (ABA). Int. J. Mol. Sci. 2012, 13, 3751-3764.

AMA Style

Gao C, Zhang K, Yang G, Wang Y. Expression Analysis of Four Peroxiredoxin Genes from Tamarix hispida in Response to Different Abiotic Stresses and Exogenous Abscisic Acid (ABA). International Journal of Molecular Sciences. 2012; 13(3):3751-3764.

Chicago/Turabian Style

Gao, Caiqiu; Zhang, Kaimin; Yang, Guiyan; Wang, Yucheng. 2012. "Expression Analysis of Four Peroxiredoxin Genes from Tamarix hispida in Response to Different Abiotic Stresses and Exogenous Abscisic Acid (ABA)." Int. J. Mol. Sci. 13, no. 3: 3751-3764.


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