کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8354676 | 1541925 | 2015 | 40 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silicon nanoparticles (SiNp) alleviate chromium (VI) phytotoxicity in Pisum sativum (L.) seedlings
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کلمات کلیدی
MDAFv/F0NPQAPXCATFv/Fm - Fv / FmROS - ROSSOR - ROWHydrogen peroxide - آب اکسیژنهAntioxidants - آنتی اکسیدانOxidative stress - تنش اکسیداتیوNon-photochemical quenching - خنک سازی غیر فتوشیمیاییsuperoxide radical - رادیکال سوپراکسیدPhotochemical quenching - رفع عکس شیمیاییSOD - سدSuperoxide dismutase - سوکسوکس دیسموتازminimal fluorescence - فلورسانس حداقلChlorophyll fluorescence - فلورسانس کلروفیلmalondialdehyde - مالون دی آلدهیدH2O2 - هیدروژن پراکسیدascorbate peroxidase - پراکسیداز آسکورباتیCatalase - کاتالازReactive oxygen species - گونههای فعال اکسیژن
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The present study was aimed to investigate the effect of silicon nanoparticles (SiNp) against Cr (VI) phytotoxicity in pea seedlings. Results show that Cr(VI, 100 μM) significantly (P < 0.05) declined growth of pea which was accompanied by the enhanced level of Cr. Additionally, photosynthetic pigments and chlorophyll fluorescence parameters like Fv/Fm, Fv/F0 and qP were decreased while NPQ significantly (P < 0.05) increased under Cr(VI) treatment. Superoxide radical, hydrogen peroxide and malondialdehyde (MDA-lipid peroxidation) contents were enhanced by Cr(VI). Activities of antioxidant enzymes like superoxide dismutase and ascorbate peroxidase were increased by Cr (VI) while activities of catalase, glutathione reductase and dehydroascorbate reductase were inhibited significantly (P < 0.05). Micro and macronutrients also show decreasing trends (except S) under Cr(VI) treatment. However, addition of SiNp together with Cr(VI) protects pea seedlings against Cr(VI) phytotoxicity hence improved growth was noticed. In conclusion, the results of this study show that Cr(VI) causes negative impact on pea seedlings, however; SiNp protects pea seedlings against Cr(VI) phytotoxicity by reducing Cr accumulation and oxidative stress, and up-regulating antioxidant defense system and nutrient elements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 96, November 2015, Pages 189-198
Journal: Plant Physiology and Biochemistry - Volume 96, November 2015, Pages 189-198
نویسندگان
Durgesh Kumar Tripathi, Vijay Pratap Singh, Sheo Mohan Prasad, Devendra Kumar Chauhan, Nawal Kishore Dubey,