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Iranian Journal of Biotechnology، جلد ۱۵، شماره ۴، صفحات ۲۸۴-۲۸۸
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عنوان انگلیسی Differential Expression of Mitochondrial Manganese Superoxide Dismutase (SOD) in Triticum aestivum Exposed to Silver Nitrate and Silver Nanoparticles
چکیده انگلیسی مقاله Background: The increasing use of nanoparticles (NPs) may have negative impacts on both organisms andthe environment. Objectives: The differential expression of mitochondrial manganese superoxide dismutase (MnSOD) gene in wheat in response to silver nitrate nanoparticles (AgNPs) and AgNO3 was investigated. Materials and Methods: A quantitative Real-Time RT-PCR experiment was carried out with MnSOD gene using RNAs isolated from wheat shoots treated for 0, 2, 6, 12, and 24 h with 100 mg.L-1 of either AgNO3 or AgNPs. Results: The results of this study showed that both treatments cause changes in the expression pattern of the MnSOD gene. While 2 and 6 h following the beginning of the stress, MnSOD expression was up-regulated significantly, in response to AgNO3 (1.4 and 2.8 fold, respectively), in response to AgNPs, it was up-regulated significant only after 6 h (1.6 fold), compared with the control. The gene expression, after 12 h in response to AgNO3 and AgNPs were down-regulated significantly (0.7 and 0.8 fold, respectively), and in the next 12 h , the expression appeared to be similar to the control. Conclusion: Exposure to both AgNPs and Ag ions led to a significant increase in MnSOD expression, but AgNO3 changed the MnSOD expression faster than AgNPs. Therefore, it is suggested that AgNO3 has greater penetrability and effectiveness.
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نویسندگان مقاله جواد کریمی |
department of biotechnology, faculty of biological sciences and technology, shahid ashrafi esfahani university, isfahan, iran

ساسان محسن زاده |
department of biology, faculty of sciences, shiraz university, shiraz 71454, iran
سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

علی نیازی |
institute of biotechnology, shiraz university, 71441-65186 bajgah, shiraz, iran
سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

علی مقدم |
institute of biotechnology, shiraz university, 71441-65186 bajgah, shiraz, iran
سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

نشانی اینترنتی http://www.ijbiotech.com/article_54477_08f8f3c2fade1132fb543311976c6688.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/441/article-441-555726.pdf
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