The biochemistry of environmental heavy metal uptake by plants: Implications for the food chain

2009 ◽  
Vol 41 (8-9) ◽  
pp. 1665-1677 ◽  
Author(s):  
Jose R. Peralta-Videa ◽  
Martha Laura Lopez ◽  
Mahesh Narayan ◽  
Geoffrey Saupe ◽  
Jorge Gardea-Torresdey
2009 ◽  
Vol 117 (3) ◽  
pp. 553-560 ◽  
Author(s):  
M.G. Volpe ◽  
F. La Cara ◽  
F. Volpe ◽  
A. De Mattia ◽  
V. Serino ◽  
...  

2011 ◽  
Vol 51 (No. 1) ◽  
pp. 1-11 ◽  
Author(s):  
M. Puschenreiter ◽  
O. Horak ◽  
W. Friesl ◽  
W. Hartl

Heavy metal contamination affects large areas of Europe and worldwide. Hot spots of pollution are located close to industrial sites, around large cities and in the vicinity of mining and smelting plants. Agriculture in these areas faces major problems due to heavy metal transfer into crops and subsequently into the food chain. This paper gives an overview on simple but effective countermeasures to reduce the transfer of heavy metals to edible parts of crops. Since crop species and varieties largely differ in their heavy metal uptake, choosing plants with low transfer factors (e.g., legumes, cereals) may reduce metal concentration in edible parts significantly. Cultivating crops with higher heavy metal uptake capacity, e.g., spinach or lettuce should be avoided. The application of soil amendments is another very effective measure to reduce the concentration of heavy metals in crops. Both organic (e.g., farmyard manure) and inorganic amendments (e.g., lime, zeolites, and iron oxides) were found to decrease the metal accumulation. Further effective methods to reduce metal transfer into food chain include crop rotation and cultivation of industrial or bio-energy crops. It is concluded that the methods presented here comprise several tools, which are easy to apply, and are effective to allow safe agriculture on moderately contaminated soils.


1996 ◽  
Vol 34 (5-6) ◽  
pp. 267-272 ◽  
Author(s):  
Ken Fukushi ◽  
Duk Chang ◽  
Sam Ghosh

The objective of this research was to investigate the feasibility of developing improved activated sludge cultures capable of removing heavy metals. Cystine, peptone, and β-glycerophosphate (BGP) stimulated metal uptake without the significant reduction of culture viability otherwise experienced in the absence of these chemicals. The cystine-peptone-BGP-grown culture exhibited the highest removal of copper and cadmium of 5.67 and 2.53 mM/g protein, respectively.


1999 ◽  
Vol 7 (1) ◽  
pp. 81-90 ◽  
Author(s):  
G. Vallini ◽  
F. Vaccari ◽  
A. Pera ◽  
M. Agnolucci ◽  
S. Scatena ◽  
...  

2003 ◽  
Vol 33 (4) ◽  
pp. 877-894
Author(s):  
El- Sebaie O ◽  
Abd El-Monem M ◽  
Ahmed M ◽  
Ahmed A

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