بررسی رشد، فیزیولوژی و سیستم آنتی­ اکسیدانی گیاه زوفا تحت تاثیر مگنتوپرایمینگ

نویسندگان

دانشگاه شهرکرد

چکیده
به ­منظور بررسی تأثیر مگنتوپرایمینگ بر وی‍ژگی­ های فیزیولو‍ژیک و فیتوشیمیایی گیاه زوفا (Hyssopus officinalis L.) آزمایشی به ­صورت فاکتوریل و در قالب طرح کاملاً تصادفی انجام گرفت. نتایج نشان داد مگنتوپرایمینگ (به ­ویژه در 200 میلی­ تسلا/5 دقیقه) باعث افزایش وزن خشک اندام­ های هوایی (6/82 درصد)، وزن خشک ریشه ­ها (5/86 درصد)، محتوای کلروفیل کل (8/32 درصد)، محتوای کاروتنوئیدها (4/32 درصد) و پلی­ فنل­ ها (به ­میزان دو برابر) در گیاه زوفای 60 روزه شد. همچنین، میزان نشت الکترولیت­ ها (6/27 درصد) و پراکسیداسیون لیپیدی (45 درصد) کاهش نشان داد. علاوه بر این، قدرت احیاکنندگی، فعالیت پاکروبی رادیکال های DPPH و آنیون­ های سوپراکسید افزایش معنی­ دار یافت. با این وجود، فعالیت بالای آنزیم­ های سوپراکسیددیسموتاز (76 درصد)، کاتالاز (2/4 برابر)، آسکوربات پراکسیداز (4/2 برابر) و گایاکول پراکسیداز (48 درصد) در شدت 90 میلی ­تسلا یافت شد. نتایج پیشنهاد می­ کند کاربرد مگنتوپرایمینگ با افزایش انسجام و پایداری غشاء، محتوای رنگیزه­ های فتوسنتزی و نیز تحریک سیستم آنتی­ اکسیدانی باعث افزایش رشد گیاهان زوفا می­ شود. همچنین این نوع پرایمینگ می ­تواند با افزایش سطح پلی­ فنل­ ها و ظرفیت آنتی­ اکسیدانی، خواص دارویی گیاه زوفا را افزایش دهد.


















کلیدواژه‌ها


عنوان مقاله English

The effects of magnetopriming on the growth, physiology and antioxidant systems in hyssop

نویسنده English

Rezvan Mohammadi
چکیده English

In order to study the effects of magnetopriming on the physiological and phytochemical characteristics of Hyssopus officinalis plants, this research was conducted as a factorial experiment in a completely randomized design. Results showed that magnetopriming (particularly at 200mT/5 min) increased the level of shoot dry weight (82.6 percent), root dry weight (86.5 percent), total chlorophyll (32.8 percent), carotenoids concentration (32.4 percent) and polyphenols content (2 folds) in 60-day-old Hyssopus officinalis. Also, electrolyte leakage and lipid peroxidation decreased by 27.6 and 45 percent, respectively. In addition, reducing power, DPPH and superoxide anion scavenging activities significantly augmented. However, higher activities of superoxide dismutase (76 percent), catalase (4.2 folds), ascorbate peroxidase (2.4 folds) and guaiacol peroxidase (48 percent) were found at 90 mT. Results suggested that the application of magnetopriming promoted growth in H. officinalis through augmentation of cellular membrane integrity as well as biomass and photosynthetic pigments content. Furthermore, it was found to enhance the antioxidative system. Magnetopriming might apparently improve the medicinal properties via increasing the level of polyphenols and antioxidant capacity in H. officinalis.

کلیدواژه‌ها English

antioxidant enzymes
Hyssopus officinalis
magnetic field
radical scavenging activity
seed priming
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  • تاریخ دریافت 18 خرداد 1405
  • تاریخ انتشار 18 خرداد 1405