نتایج جستجو برای: heavy metals uptake

تعداد نتایج: 295281  

Journal: :Journal of experimental botany 2002
J L Hall

Heavy metals such as Cu and Zn are essential for normal plant growth, although elevated concentrations of both essential and non-essential metals can result in growth inhibition and toxicity symptoms. Plants possess a range of potential cellular mechanisms that may be involved in the detoxification of heavy metals and thus tolerance to metal stress. These include roles for the following: for my...

Journal: :Plant physiology 2014
Sathish Rajamani Moacir Torres Vanessa Falcao Jaime Ewalt Gray Daniel A Coury Pio Colepicolo Richard Sayre

We have developed a fluorescence resonance energy transfer (FRET)-based heavy metal biosensor for the quantification of bioavailable free heavy metals in the cytoplasm of the microalga Chlamydomonas reinhardtii. The biosensor is composed of an end-to-end fusion of cyan fluorescent protein (CFP), chicken metallothionein II (MT-II), and yellow fluorescent protein (YFP). In vitro measurements of Y...

2011

Nowadays, most countries especially in arid and dry climate zones had experienced the water scarcity problems. In the agricultural sector, freshwater play a major role to supply water for the plant grows. Thus, the reuse of wastewater as alternative water resources in agricultural is highly recommended. However, wastewater is always contaminated despite after secondary treatment. Along benefici...

اسماعیل‌پور فرد, نسترن , هوشمند, سعداله , گیوی, جواد ,

Mining, industrial and agricultural activities can result in considerable soil pollution by heavy metals (HMs). One of the methods to control this pollution is application of adsorbent minerals. The purpose of this study was to compare the effects of adsorbent minerals (bentonite, zeolite and sepiolite) on transfer of some heavy metals (i.e., Pb, Zn and Cd) from soil to tissues of sunflower (He...

2010
Ismail B. Sahid

Heavy metal content was determined in selected vegetables cultivated in some highland and lowland areas in Peninsular Malaysia. Leafy vegetables were represented by convolvulus (Ipomoea aquatica) and green mustard or sawi (Brassica rapa var. parachinensis), tubers and bulbs by sweet potato (Ipomoea batatas) and onion (Allium cepa), and fruity vegetables by chilly (Capsicum annuum), brinjal (Sol...

2017
Lalit Goswami N. Arul Manikandan Kannan Pakshirajan G. Pugazhenthi

This study investigated simultaneous heavy metals removal and anthracene biodegradation by Rhodococcus opacus at different initial anthracene concentrations in the range 50-200 mg L-1. The heavy metals tested were Fe(III), Cu(II), Zn(II), Cd(II), Ni(II), and Pb(II) at 10 mg L-1 initial concentration: The organism was found to be well capable of removing the heavy metals along with high anthrace...

Journal: :environmental health engineering and management 0
shidvash dowlatshahi environmental health engineering research center and department of environmental health, school of public health, kerman university of medical sciences, kerman, iran ahmad reza haratinezhad torbati environmental health engineering, department of environmental health, school of public health, kerman university of medical sciences, kerman, iran mahshid loloei [email protected]

background: industrial development has caused the release of various pollutants including heavy metals into the environment. these toxic compounds are extremely dangerous to living beings and the environment due to their non-biodegradability, severe toxicity, carcinogenicity, the ability to be accumulated in nature and the ability to contaminate groundwater and surface water. the aim of the pre...

2011
Bandita Deo Gayatri Nahak R. K. Sahu

Availability and uptake of heavy metals (Zn, Cu, Fe, Al, Cr, Ni) by mung bean grown on coal mine spoil was studied. The experiment was carried out as a pot culture experiment using garden soil and different proportion of coal mine spoil. The heavy metals were transported to roots then shoot and were found in traces in the fruits. No toxicity symptom was reported during vegetative as well as rep...

امیرجانی, محمدرضا, امینی, فریبا,

Heavy metals have a important roles to environmental pollution as a result of human activities. Higher concentration of heavy metals in environment lead to a toxicity symptoms and growth inhibition in most plants. The aims of this study was Ni and Pb accumulation in alfalfa plants when its exposure in this metals and the effects of this heavy metals on photosynthetic pigments. In this study see...

Ahmad Reza Haratinezhad Torbati, Mahshid Loloei, Shidvash Dowlatshahi,

Background: Industrial development has caused the release of various pollutants including heavy metals into the environment. These toxic compounds are extremely dangerous to living beings and the environment due to their non-biodegradability, severe toxicity, carcinogenicity, the ability to be accumulated in nature and the ability to contaminate groundwater and surface water. The aim of the pre...

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