کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11003029 | 1453003 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Menadione sodium bisulphite mediated growth, secondary metabolism, nutrient uptake and oxidative defense in okra (Abelmoschus esculentus Moench) under cadmium stress
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کلمات کلیدی
MDAMSBAPXPODCATHydrogen peroxide - آب اکسیژنهAntioxidant enzyme - آنزیم آنتی اکسیدانOkra - بامیهSOD - سدSuperoxide dismutase - سوکسوکس دیسموتازmalondialdehyde - مالون دی آلدهیدMagnesium - منیزیمEssential nutrients - مواد مغذی ضروریH2O2 - هیدروژن پراکسیدPotassium - پتاسیمPeroxidase - پراکسیدازascorbate peroxidase - پراکسیداز آسکورباتیCatalase - کاتالازCadmium - کادمیمCalcium - کلسیم
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Menadione sodium bisulphite mediated growth, secondary metabolism, nutrient uptake and oxidative defense in okra (Abelmoschus esculentus Moench) under cadmium stress Menadione sodium bisulphite mediated growth, secondary metabolism, nutrient uptake and oxidative defense in okra (Abelmoschus esculentus Moench) under cadmium stress](/preview/png/11003029.png)
چکیده انگلیسی
Menadione sodium bisulphite (MSB) mediates plant defense responses under abiotic stresses. In present experiment, Cd stress (1âmM) resulted in significant reduction in growth, relative water contents, chlorophyll and uptake of essential nutrients in two okra cultivars (Shabnum and Arka Anamika). Cd-induced reduction in these variables was more in cv. Arka Anamika compared with cv. Shabnum 786. Cd caused oxidative damage in the form of higher cellular levels of MDA and H2O2. MSB applications (0, 50, 100, 150 and 200âμM) had differential effect on growth and key physio-biochemical attributes. Higher MSB dose (200âμM) was lethal as it further aggravated damages under Cd toxicity. However, plants treated with 100âμM MSB exhibited lesser oxidative damage due to better oxidative defense in the form of stimulated activities of antioxidant enzymes (SOD, POD, CAT and APX) and increased concentration of non-enzymatic antioxidants (phenolics, flavonoids and ascorbic acid). Moreover, 100âμM MSB mitigated Cd effect on the uptake of Ca, K, and Mg. MSB also reduced the uptake and transport of Cd to aerial parts of plants. The results of present study revealed MSB-induced slight oxidative burst that induced the accumulation of reactive oxygen species (ROS) scavenging defense proteins under Cd stress.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 360, 15 October 2018, Pages 604-614
Journal: Journal of Hazardous Materials - Volume 360, 15 October 2018, Pages 604-614
نویسندگان
Rizwan Rasheed, Muhammad Arslan Ashraf, Sehrish Kamran, Muhammad Iqbal, Iqbal Hussain,