文献类型： 外文期刊
作者： Li Hui-yu 1 ; Ning Kun 1 ; Song Xin 1 ; Wang Zi-jia 1 ; Liu Gui-feng 1 ; Jiang Jing 1 ; Zhang Rui-ping 2 ; Li Kai-long 1 ;
作者机构： 1.Northeast Forestry Univ, State Key Lab Forest Genet & Tree Breeding, Harbin 150040, Peoples R China
2.Heilongjiang Acad Agr Sci, Soybean Res Inst, Harbin 150086, Peoples R China
关键词： Tamarix hispida;Thioredoxins;Gene cloning;Abiotic stress;Gene expression
期刊名称：PLANT MOLECULAR BIOLOGY REPORTER （ 影响因子：1.595； 五年影响因子：2.042 ）
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收录情况： SCI
摘要： Thioredoxins are small conserved proteins that play key roles in the oxidative stress response. In this study, nine Trx genes, including five Trxhs, three Trxms, and one Trx-like gene, were cloned from Tamarix hispida. The roles of these ThTrx genes were investigated under various abiotic stress conditions. Expression profiles of the nine ThTrx genes in response to different abiotic stresses in leaf and root tissues were constructed using quantitative real time-polymerase chain reaction. Differential expression of all nine ThTrx genes was observed (> 2-fold) in response to NaCl, PEG, or CdCl2 stress in at least one tissue, indicating that all of these genes act in abiotic stress responses. All ThTrx genes were induced (> 2-fold) by abscisic acid (ABA) treatment in the leaves and especially in the roots, suggesting that ABA-dependent signaling pathways regulate ThTrxs. These results demonstrate that ThTrx expression constitutes an adaptive response to abiotic stress in T. hispida and plays an important role in abiotic stress tolerance.
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