ArticlePloS one2014
The SbMT-2 gene from a halophyte confers abiotic stress tolerance and modulates ROS scavenging in transgenic tobacco.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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38 citing papers in PubMed.
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- Perspective on the heavy metal pollution and recent remediation strategies.Current research in microbial sciences · 2022Article
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- Recent advances in physiological and molecular mechanisms of heavy metal accumulation in plants.Environmental science and pollution research international · 2021Review
- Transcriptome analysis of Plantago major as a phytoremediator to identify some genes related to cypermethrin detoxification.Environmental science and pollution research international · 2021Article
- Transcriptome analysis and differential gene expression profiling of two contrasting quinoa genotypes in response to salt stress.BMC plant biology · 2020Article
- Metabolic profiling and scavenging activities of developing circumscissile fruit of psyllium (Plantago ovata Forssk.) reveal variation in primary and secondary metabolites.BMC plant biology · 2020Article
- Ectopic expression of CPhysiology and molecular biology of plants : an international journal of functional plant biology · 2020Review
- From Survival to Productivity Mode: Cytokinins Allow Avoiding the Avoidance Strategy Under Stress Conditions.Frontiers in plant science · 2020Article
- The Pyruvate-Phosphate Dikinase (CFrontiers in plant science · 2020Article
- Identification of the metallothionein gene family from cucumber and functional characterization of3 Biotech · 2019Article
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- Overexpression of aInternational journal of molecular sciences · 2019Article
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- Comparative analysis of transcriptome in two wheat genotypes with contrasting levels of drought tolerance.Protoplasma · 2018Article
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5 authors.
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Abstract
Heavy metals are common pollutants of the coastal saline area and Salicornia brachiata an extreme halophyte is frequently exposed to various abiotic stresses including heavy metals. The SbMT-2 gene was cloned and transformed to tobacco for the functional validation. Transgenic tobacco lines (L2, L4, L6 and L13) showed significantly enhanced salt (NaCl), osmotic (PEG) and metals (Zn++, Cu++ and Cd++) tolerance compared to WT plants. Transgenic lines did not show any morphological variation and had enhanced growth parameters viz. shoot length, root length, fresh weight and dry weight. High seed germination percentage, chlorophyll content, relative water content, electrolytic leakage and membrane stability index confirmed that transgenic lines performed better under salt (NaCl), osmotic (PEG) and metals (Zn++, Cu++ and Cd++) stress conditions compared to WT plants. Proline, H2O2 and lipid peroxidation (MDA) analyses suggested the role of SbMT-2 in cellular homeostasis and H2O2 detoxification. Furthermore in vivo localization of H2O2 and O2-; and elevated expression of key antioxidant enzyme encoding genes, SOD, POD and APX evident the possible role of SbMT-2 in ROS scavenging/detoxification mechanism. Transgenic lines showed accumulation of Cu++ and Cd++ in root while Zn++ in stem under stress condition. Under control (unstressed) condition, Zn++ was accumulated more in root but accumulation of Zn++ in stem under stress condition suggested that SbMT-2 may involve in the selective translocation of Zn++ from root to stem. This observation was further supported by the up-regulation of zinc transporter encoding genes NtZIP1 and NtHMA-A under metal ion stress condition. The study suggested that SbMT-2 modulates ROS scavenging and is a potential candidate to be used for phytoremediation and imparting stress tolerance.
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