کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5748071 | 1618927 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly sensitive optical interferometric technique reveals stress-dependent instantaneous nanometric growth fluctuations of Chinese chive leaf under heavy metal stress
ترجمه فارسی عنوان
تکنولوژی اینترفروماتیک نوری بسیار حساس نشان می دهد نوسانات رشد نانومواد لحظه ای وابسته به استرس از برگ های چینی تحت تنش فلزات سنگین
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
CCDPODRERANSDICP-AESnIFSITCATROS - ROSHydrogen peroxide - آب اکسیژنهstandard deviation - انحراف معیارOptical interferometry - تداخل سنجی نوریCharge-Coupled Device - دستگاه متصل شارژPlant growth - رشد گیاهSOD - سدSuper Oxide Dismutase - سوپر اکسید دیسموتازLaser speckle - عینک لیزریZinc - فلز رویH2O2 - هیدروژن پراکسیدPeroxidase - پراکسیدازCatalase - کاتالازCadmium - کادمیمReactive oxygen species - گونههای فعال اکسیژن
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Plant growth apart from being a complex and highly dynamic is dependent on its immediate environment. Leaf expansion measurements using Statistical Interferometry Technique, a sensitive interferometric technique at nanometric accuracy and at sub-second levels revealed the presence of characteristic nanometric intrinsic fluctuations [Plant Biotechnology 31, 195 (2014)]. In this paper, we demonstrate that the nanometric intrinsic fluctuations are sensitive enough that they change under exposure of heavy metals, essential micronutrient zinc and non-essential element cadmium, at relatively low concentrations in the leaves of Chinese chive (Allium tuberosum). The nanometric intrinsic fluctuations of leaves were observed for 4Â h under three cadmium concentrations or two zinc concentrations. Results showed significant reduction of nanometric intrinsic fluctuations for all cadmium concentrations, and in contrast significant increase of nanometric intrinsic fluctuations for all zinc concentrations. There was significant reduction of nanometric intrinsic fluctuations for cadmium exposure of concentrations of 0.001Â mM for even an hour, and significant increment of nanometric intrinsic fluctuations under 0.75Â mM zinc from 1hr exposure. For comparison, antioxidative enzymes and metal uptake were also measured under 4hr exposure of cadmium or zinc. However, no significant changes could be seen in antioxidative enzymes within 4Â h under the smaller concentration of 0.001Â mM cadmium as seen for nanometric intrinsic fluctuations. The results imply that nanometric intrinsic fluctuations can be not only used as a measure for heavy metal stress but also it can be more sensitive to detect the toxic as well as positive effects of smaller amounts of heavy metal on plants at an early stage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 137, March 2017, Pages 86-93
Journal: Ecotoxicology and Environmental Safety - Volume 137, March 2017, Pages 86-93
نویسندگان
Kokge Thilini Kanchana Muthumali DeSilva, Uma Maheswari Rajagopalan, Hirofumi Kadono,