ArticlePlant molecular biology2015
Expression of SOD and APX genes positively regulates secondary cell wall biosynthesis and promotes plant growth and yield in Arabidopsis under salt stress.
Article in Plant molecular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.
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Who cites it
74 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Exogenous nitric oxide promotes salinity tolerance in plants: A meta-analysis.Frontiers in plant science · 2022Pooled it
- High-efficiency callus induction from intact Camellia sinensis leaves via controlled incisions and its regulatory mechanisms.BMC plant biology · 2026Article
- Dissecting morphological changes during floral abscission inAoB PLANTS · 2026Article
- Harnessing Antioxidants for Abiotic Stress Management: Mechanistic Insights and Prospects for Sustainable Agriculture.Antioxidants (Basel, Switzerland) · 2026Review
- Differential Regulation of Gene Expression, Ion Homeostasis, and Antioxidant Defense Confers Salinity Tolerance During Seed Germination in Wheat.Plants (Basel, Switzerland) · 2026Article
- Overexpression of Abiotic Stress-ResponsiveInternational journal of molecular sciences · 2025Article
- Eruca sativa oil yields potential, fatty acids profiling, and physiological adaptations at the seed-filling stage with low-quality saline water irrigation.Scientific reports · 2025Article
- Contrasting roles of reactive oxygen species in pyrophosphate-induced growth inhibition under normal and salt stress conditions.Plant molecular biology · 2025Article
- BLH3 Regulates the ABA Pathway and Lignin Synthesis Under Salt Stress inPlants (Basel, Switzerland) · 2025Article
- Combining Physiology and Transcriptome to Reveal Mechanisms ofPlants (Basel, Switzerland) · 2025Article
- Article
- NST3 induces ectopic transdifferentiation, forming secondary walls with diverse patterns and composition in Arabidopsis thaliana.Annals of botany · 2024Article
- Genome-wide identification of heterotrimeric G protein genes in castor (Ricinus communis L.) and expression patterns under salt stress.BMC genomics · 2024Article
- Transcriptional Profiling Analysis Providing Insights into the Harsh Environments Tolerance Mechanisms ofInternational journal of molecular sciences · 2024Article
- Comprehensive transcriptome analysis of Asparagus officinalis in response to varying levels of salt stress.BMC plant biology · 2024Article
- Regulation of nitro-oxidative homeostasis: an effective approach to enhance salinity tolerance in plants.Plant cell reports · 2024Review
- Transcription FactorInternational journal of molecular sciences · 2024Article
- Article
- PagSOD2a improves poplar salt tolerance by elevating superoxide dismutase activity and decreasing malondialdehyde contents.Frontiers in plant science · 2024Article
- Physiological Characteristics and Transcriptome Analysis of Exogenous Brassinosteroid-Treated Kiwifruit.International journal of molecular sciences · 2023Article
14 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abiotic stresses cause accumulation of reactive oxygen species (ROS), such as hydrogen peroxide (H2O2) in plants. Sophisticated mechanisms are required to maintain optimum level of H2O2 that acts as signalling molecule regulating adaptive response to salt stress. CuZn-superoxide dismutase (CuZn-SOD) and ascorbate peroxidase (APX) constitute first line of defence against oxidative stress. In the present study, PaSOD and RaAPX genes from Potentilla atrosanguinea and Rheum australe, respectively were overexpressed individually as well as in combination in Arabidopsis thaliana. Interestingly, PaSOD and dual transgenic lines exhibit enhanced lignin deposition in their vascular bundles with altered S:G ratio under salt stress. RNA-seq analysis revealed that expression of PaSOD gene in single and dual transgenics positively regulates expression of lignin biosynthesis genes and transcription factors (NACs, MYBs, C3Hs and WRKY), leading to enhanced and ectopic deposition of lignin in vascular tissues with larger xylem fibres and alters S:G ratio, as well. In addition, transgenic plants exhibit growth promotion, higher biomass production and increased yield under salt stress as compared to wild type plants. Our results suggest that in dual transgenics, ROS generated during salt stress gets converted into H2O2 by SOD and its optimum level was maintained by APX. This basal level of H2O2 acts as messenger for transcriptional activation of lignin biosynthesis in vascular tissue, which provides mechanical strength to plants. These findings reveal an important role of PaSOD and RaAPX in enhancing salt tolerance of transgenic Arabidopsis via increased accumulation of compatible solutes and by regulating lignin biosynthesis.
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