Magnetic field and silver nanoparticles induced changes on phenolic compound and oxidative status of marigold seedlings

Document Type : Research Paper


Department of Biology, Faculty of Science, Urmia University, Urmia, Iran.


Effect of magnetic fields (MFs) and silver nanoparticles (SNPs) on a biological organism vary depending on their system and applied materials, time and intensity. In recent years, many studies have been conducted on the sensitivity of living organisms to MFs and NPs. For this purpose, an experiment was carried out in 2016 to study the effects of MF and SNPs on marigold (Calendula officinalis L.) using randomized complete block design with four treatments and three replications. The treatments were as follows: control, MF with B=3 mT for an hour per day, SNPs (50 ppm) and combination of MF (B=3 mT) and SNPs (50 ppm). Results showed that phenolic content, DPPH radical scavenging, phenylalanine ammonia lyase, polyphenoloxidase, catalase, ascorbate peroxidase, guaiacol peroxidase and glutathione reductase activity were significantly increased by the application of MFs and SNPs as compared to the control group. It seems that the MF+SNPs treatment had the best effect on the antioxidant status of C. officinalis L. and may be suitable alternative for chemical compounds used in agriculture.


Article Title [Persian]

ارزیابی تغییرات القاشده میدان مغناطیسی و نانوذرات نقره بر ترکیبات فنلی و خواص پاداکسایشی گیاه همیشه بهار (Calendula officinalis L.)

Authors [Persian]

  • الهام جلیل زاده
  • رشید جامعی
  • سیاوش حسینی سرقین
گروه زیست شناسی، دانشکده علوم، دانشگاه ارومیه، ارومیه
Abstract [Persian]

تاثیر میدان­های مغناطیسی و کاربرد نانوذرات نقره بر یک ارگانیسم زیستی، بسته به نوع مواد و سیستم و برنامه­ی بکار رفته و زمان و شدت کاربرد آن متفاوت است. در سال­های اخیر تحقیقات زیادی در زمینه حساسیت موجودات زنده نسبت به میدان­های مغناطیسی و نانوذرات انجام شده است. به همین منظور، برای ارزیابی تأثیر میدان مغناطیسی و نانوذرات نقره روی فعالیت­های پاداکسایشی گیاه همیشه بهار (Calendula officinalis L.) آزمایشی درسال 1396 در گروه زیست شناسی دانشگاه ارومیه با استفاده از طرح بلوک­های کامل تصادفی با چهار تیمار و سه تکرار انجام شد. تیمارها به این شرح بودند: شاهد، میدان مغناطیسی (با شدت 3mT ) به مدت یک ساعت در روز، نانو ذرات نقره (50 ppm) و ترکیب این دو تیمار. نتایج نشان داد که در گیاهان تحت تیمار با میدان مغناطیسی، نانوذره نقره و میدان مغناطیسی + نانوذره نقره، محتوای فنل کل، فلاونویید و ظرفیت جاروب کنندگی رادیکال آزاد DPPH، میزان فعالیت آنزیم­های فنیل آلانین آمونیالیاز، پلی فنل اکسیداز، کاتالاز، آسکوربات پراکسیداز، گایاکول پراکسیداز و گلوتاتیون ردوکتاز نسبت به گروه شاهد افزایش معنی­دار در سطح احتمال 05/0 داشت. تیمار میدان مغناطیسی و نانوذره­ی نقره واجد بهترین تأثیر روی وضعیت پاداکسایشی گیاه همیشه بهار بود و می­تواند به عنوان جایگزینی مناسب برای ترکیبات شیمیایی مورد استفاده در کشاورزی قرار گیرد.

Keywords [Persian]

  • ترکیبات فیتوشیمیایی
  • میدان مغناطیسی
  • نانوذرات نقره
  • همیشه بهار
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