قائمة الطعام
REVIEW ARTICLE. Zinc as a countermeasure for cadmium toxicity. Hai-tao Yu1,2,3, Juan Zhen1,2,3, Ji-yan Leng1, Lu Cai2,4,5, Hong-lei Ji1and Bradley B. Keller3,5,6. Cadmium …
The mechanisms of cadmium, cobalt and zinc resistance were characterized in the plant-growth-promoting bacterium Gluconacetobacter diazotrophicus PAl 5. The resistance level of the wild-type strain was evaluated through the establishment of minimum inhibitory concentrations (MIC) of the soluble compounds CdCl2·H2O, CoCl2·6H2O and ZnCl2.
This study investigates the ability of natural clinoptilolite zeolite as a low-cost adsorbent for removing heavy metal ions, specifically lead, cadmium, and cobalt, from the aquifer in the Varamin region in a discontinuous absorption system. Characterization techniques such as XRD, XRF, ICP-MS, BET, and FESEM were used to analyze the …
Download Citation | Early Toxic Effects of Zinc, Cobalt, and Cadmium on Photosynthetic Activity of the Green Alga Chlorella pyrenoidosa Chick S-39 | Early toxic effects of heavy metals (HMs) Zn ...
Zinc–cobalt slag, a hazardous waste from hydrometallurgical zinc smelting, is an important secondary source of cobalt; however, the separation of zinc and cobalt …
The conventional roast-leach zinc extraction process yields a solid residue consisting of a mixture of zinc, copper, cadmium, and cobalt. Some zinc smelting plants process that residue [1] [2][3 ...
A large amount of hot filter cake (HFC) is annually generated in Iranian zinc plants. It contains 1% zinc, 16–30% manganese, 5–25% calcium and 1–4.5% cobalt. Usually, zinc is selectively leached by … Expand
Background and aims: The uptake, translocation and redistribution of the heavy metals zinc, manganese, nickel, cobalt and cadmium are relevant for plant nutrition as well as for the quality of harvested plant products. The long-distance transport of these heavy metals within the root system and the release to the shoot in young wheat (Triticum aestivum …
1995; Haslett et al., 2001). The redistribution of zinc may depend on plant age as well as on the zinc contents of the source organs (Herren and Feller, 1996). Cadmium is found in all soils in at least trace quantities (Page et al., 1981). As cadmium and zinc are chemically very similar (Chesworth, 1991), they may be taken up and transported in
View PDF. The phloem mobility of heavy metals is relevant to the redistribution of micronutrients and pollutants and, ultimately, to the quality of harvested …
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In the study reported here, radio-labeled nickel (Ni), cobalt (Co), manganese (Mn), zinc (Zn) and cadmium (Cd) were introduced into either intact young winter wheat (Triticum aestivum L. cv. Arina) via a leaf flap, or detached maturing shoots via the cut stem. Elements fed into the lamina of the second leaf of 21-day-old plants were ...
Substances. Cadmium. Cobalt. Nickel. Zinc. The divalent cations of cobalt, zinc, and nickel are essential nutrients for bacteria, required as trace elements at nanomolar concentrations. However, at micro- or millimolar concentrations, Co2+, Zn2+, and Ni2+ (and "bad ions" without nutritional roles such as Cd2+) are toxic. These cations are tr ….
Abstract • Background and Aims The uptake, translocation and redistribution of the heavy metals zinc, manganese, nickel, cobalt and cadmium are relevant for plant nutrition as well as for the quality of harvested plant products. The long-distance transport of these heavy metals within the root system and the release to the shoot in young wheat …
Ion antagonisms in microorganisms; interference of normal magnesium metabolism by nickel, cobalt, cadmium, zinc, and manganese. Ion antagonisms in microorganisms; interference of normal magnesium metabolism by nickel, cobalt, cadmium, zinc, and manganese J Bacteriol. 1950 ...
Cobalt, chromium and nickel contents in soils and plants from a serpentinite quarry M. Lago-Vila, D. Arenas-Lago, A. Rodríguez-Seijo, M. L. Andrade Couce, and F. A. Vega Department of Plant Biology and Soil Science, University of Vigo, 36310 Vigo, Spain Correspondence to: M. L. Andrade Couce ([email protected])
Summary. Cobalt (Co) is a transition metal and ranked 19th in abundance among the trace elements. This chapter is intended to discuss Co in plant life, plant …
The loss of cobalt was about 1.5%. Zinc, cadmium, and copper were isolated from cobalt using a 201×7 strong base-type anion-exchange resin using a conditioning solution containing 2 mol L −1 sodium chloride, 7.8 g L −1 sodium sulfite (at a Na 2 SO 3 /Cu 2+ weight ratio of 2.7:1) at pH 4.0. About 99% of zinc, 96% of cadmium, …
Cadmium (Cd+2) renders multifarious environmental stresses and highly toxic to nearly all living organisms including plants. Cd causes toxicity by unnecessary augmentation of ROS that targets essential molecules and fundamental processes in plants. In response, plants outfitted a repertory of mechanisms to offset Cd toxicity. The …
1. Introduction. Cobalt consumption increases yearly, and with this high demand comes the risk of a supply shortage in the future [1], [2], [3], [4].The comprehensive recovery of cobalt from secondary sources has recently gained more attention [5], [6], [7], [8].Zinc–cobalt slag (ZCS) produced in hydrometallurgical zinc smelting is not only …
Plant cadmium resistance proteins (PCR) are involved with transporting Zn 2+ and Cd 2+ and in Arabidopsis one PCR, AtPCR1, a Cd-efflux transporter, improves the tolerance of Cd by exporting Cd out ...
Metal ion contamination in wastewater is an issue of global concern. The conventional methods of heavy metal removal from wastewater have some drawbacks, ranging from generation of sludge to high cost of removal. Adsorption technique for copper(II), zinc(II), and chromium(VI) using activated carbon has been found efficient. …
Page and Feller (2005) showed that the transfer of zinc, manganese, cobalt and cadmium in the leaves and roots of wheat were selective. When other minerals were in close proximity to cadmium, the ...
cobalt cadmium zinc in quarry plant cierpiktransporteu. Jun 25 32 Hi A book about organic gardening highly recommended Rock Phosphate to bring up Phosphorus levels My soil is very deficient despite numerous applications of Abstract ted um it av ichi ed f line uat cos a ing mine waste was a direct source of liver cadmium Cadmium and copper ...
Leaching kinetics of several metals from zinc plant residues by aqueous sulphuric acid solutions have been studied e.g. cadmium from cadmium-nickel filter cake in Iran [11], cobalt from a zinc ...
prepared. Plants absorbed the feeding solution within 24 h. After 1, 2, 7, 14, 21, and 28 d from treatment, plants were dissected into roots, grain and coleoptile, the various leaves and the flap. The plant parts were dried at room temperature (20 C). The radioactivity of 57Co,54Mn, 65Zn, and 109Cd in the different plant parts
plant called Thlaspi caerulescens on soil contaminated by zinc and cadmium, 785. it was possible to attain a higher activity of β-glucosidase, arylsulphatase, acid phosphatase, alkaline ...
As cadmium and zinc are chemically very similar (Chesworth, 1991), they may be taken up and transported in plants by similar pathways (Grant et al., 1998). The uptake of cadmium by plants is governed by a number of factors such as pH, temperature, aeration, total cadmium concentration in the soil and the presence of other micro- and ...
Cadmium (Cd), copper (Cu), zinc (Zn), nickel (Ni), cobalt (Co), chromium (Cr), lead (Pb), and arsenic (As) toxicity is recorded in agricultural soils throughout the world. Some of these heavy metal ions are essential micronutrients for plant metabolism but when present in excess are extremely toxic.
Our results revealed that NaCl induction led to a notable 30 % decrease in Cd absorption, while maintaining minimal impact on zinc (Zn) uptake. Intriguingly, the absence of essential DMIs, such as calcium (Ca), magnesium (Mg), and Zn, was found to diminish the plant's capacity to absorb Cd. Furthermore, moderate NaCl induction …
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