Abstract
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.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
