نتایج جستجو برای: fe mn

تعداد نتایج: 109201  

Journal: :تحقیقات آب و خاک ایران 0
فرشته ولیزاده فرد دانشگاه تبریز عادل ریحانی تبار دانشگاه تبریز نصرت اله نجفی دانشگاه تبریز شاهین اوستان دانشگاه تبریز

abstract in order to study the effects of variety, water regime, zinc and cadmium levels on concentration, content and translocation of p, cu, fe and mn on rice, a factorial experiment was conducted consisting of four factors including: two varieties of rice (vandana and hashemi), two water regimes (flooded and nonflooded), three levels of zinc, and three of cadmium (0, 5 and 10 mg kg-1). the e...

2010
Sebastian Brück Sebastian Macke Eberhard Goering Xiaosong Ji Qingfeng Zhan Kannan M. Krishnan

A bilayer exchange-bias system composed of Fe/MnPd is investigated using x-ray magnetic circular dichroism XMCD and soft x-ray resonant magnetic reflectometry XRMR . The absorption and XMCD data at the Fe L and Mn L edges are used to derive the optical and magneto-optical properties of the individual layers. Then the structural and magnetic depth profiles of the sample are obtained from XRMR. F...

2012
Yasuhiro Ishimaru Ryuichi Takahashi Khurram Bashir Hugo Shimo Takeshi Senoura Kazuhiko Sugimoto Kazuko Ono Masahiro Yano Satoru Ishikawa Tomohito Arao Hiromi Nakanishi Naoko K. Nishizawa

Metals like manganese (Mn) and iron (Fe) are essential for metabolism, while cadmium (Cd) is toxic for virtually all living organisms. Understanding the transport of these metals is important for breeding better crops. We have identified that OsNRAMP5 contributes to Mn, Fe and Cd transport in rice. OsNRAMP5 expression was restricted to roots epidermis, exodermis, and outer layers of the cortex ...

Journal: :The British journal of nutrition 2016
Huaiyong Zhang Elizabeth R Gilbert Shuqin Pan Keying Zhang Xuemei Ding Jianping Wang Qiufeng Zeng Shiping Bai

To determine the effects of dietary Fe concentration on Mn bioavailability in rats fed inorganic or organic Mn sources, fifty-four 22-d-old male rats were randomly assigned and fed a basal diet (2·63 mg Fe/kg) supplemented with 0 (low Fe (L-Fe)), 35 (adequate Fe (A-Fe)) or 175 (high Fe (H-Fe)) mg Fe/kg with 10 mg Mn/kg from MnSO4 or Mn-lysine chelate (MnLys). Tissues were harvested after 21 d o...

Journal: :Plant physiology 1975
S Kannan B Joseph

The absorption of Fe from FeSO(4), FeEDTA, and FeEDDHA (ferric ethylenediaminedi (o-hydroxyphenylacetate)), and Mn from MnSO(4), MnEDTA, and MnEDDHA, by germinating sorghum (Sorghum vulgarie Pers. var. M 35-1) was studied. The seeds were found to absorb Fe and Mn from all the sources, and these ions moved to the scutellum, shoot, and root. EDDHA facilitated greater translocation of Fe and Mn fr...

Journal: :iranian chemical communication 0
bahram hosseini nia education azam anaraki firooz chemistry department, faculty of sciences, shahid rajaee teacher training university masoumeh ghalkhani chemistry department, faculty of science, shahid rajaee teacher training university javad beheshtian chemistry department, faculty of science, shahid rajaee teacher training university

in this study, undoped zno and doped with fe and mn nanostructures were synthesized by hydrothermal method. the morphology of nanostructures was characterized by scanning electron microscope. the electrochemical response of the carbon paste electrode modified with nanoparticles of zno and also zno doped with fe and mn toward levodopa (l-dopa) was studied. studies of cyclic voltammetry using pro...

A Ronaghi R Ghasemi Fasaei

ABSTRACT- The effects of iron (Fe) and zinc (Zn) treatments on the growth and nutrient composition of chickpea were studied in a greenhouse experiment arranged in a completely randomized design. While the application of Fe decreased mean shoot dry weight of chickpea, that of Zn had no significant effect on chickpea shoot dry weight. Increasing Fe levels drastically decreased Mn concentration an...

Journal: :Journal of environmental biology 2010
Ramesh Singh D P Singh Narendra Kumar S K Bhargava S C Barman

The present investigation deals with the accumulation of heavy metals in fields contaminated with fly ash from a thermal power plant and subsequent uptake in different parts of naturally grown plants. Results revealed that in the contaminated site, the mean level of all the metals (Cd, Zn, Cr, Pb, Cu, Ni, Mn and Fe) in soil and different parts (root and shoots) of plant species were found to be...

2015
Yue Guo Changhua Zhu Lijun Gan Denny Ng Kai Xia

Gibberellins (GA) regulate various components of plant development. Iron and Mn plaque result from oxiding and hydroxiding Fe and Mn, respectively, on the roots of aquatic plant species such as rice (Oryza sativa L.). In this study, we found that exogenous gibberellic acid3 (GA3) spray decreased Fe plaque, but increased Mn plaque, with applications of Kimura B nutrient solution. Similar effects...

شاهین اوستان, عادل ریحانی تبار فرشته ولیزاده فرد نصرت اله نجفی,

برای مطالعه اثر کادمیوم(Cd) و روی(Zn) بر غلظت، مقدار و فاکتور انتقال فسفر(P)، مس((Cu، آهن(Fe) و منگنز(Mn) در گیاه برنج آزمایشی در گلخانه به صورت فاکتوریل در قالب طرح بلوک‌های کامل تصادفی با دو رقم برنج (هاشمی و واندانا)، دو سطح رطوبت (غرقاب و غیر غرقاب)، سه سطح Zn و Cd (0، 5 و 10 میلی‌گرم بر کیلوگرم خاک) و در سه تکرار انجام گرفت. نتایج نشان داد که با تغییر رژیم رطوبتی از غرقاب به غیرغرقاب غلظت...

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