Heavy metal impact on bacterial biomass based on DNA analyses and uptake by wild plants in the abandoned copper mine soils

2009 ◽  
Vol 100 (17) ◽  
pp. 3831-3836 ◽  
Author(s):  
Zhaohui Guo ◽  
Mallavarapu Megharaj ◽  
Michael Beer ◽  
Hui Ming ◽  
Mohammad Mahmudur Rahman ◽  
...  
2018 ◽  
Vol 25 (6) ◽  
pp. 1274-1284
Author(s):  
Jiu-hua Xiao ◽  
Jun Zhou ◽  
Zhao-hui Wang ◽  
Si-yue Li ◽  
Wei-chao Zhang ◽  
...  

2021 ◽  
Vol 261 ◽  
pp. 04015
Author(s):  
Fengli Mou ◽  
Jingmin Yang ◽  
Biwen Li ◽  
Jianjun Chen ◽  
Jixiu Wang

In order to screen out the plants used to repair heavy metal pollution in the soil, five plants and surface soil were collected in the Huize lead-zinc mine area, centered on the hyperaccumulator plant Arabis alpina L. var. parviflora Franch, measured the heavy metal content of in shoot and root of plant and surface soil, and analyzed the characteristics of heavy metal accumulation in plants. The results showed that the soil Cd pollution in the Huize lead-zinc mining area was the most serious; among the five plants, the Cd bioconcentration factor(BCF) and translocation factor(TF) of A. alpina were more than 1, and the TF of Pb was more than 1; the TF of Anaphalis margaritacea, Cyananthus inflatus and Arenaria orbiculata to Cu and Zn were more than 1, the TF of Juncus effusus to Cd and Zn were more than 1. These five plants had good tolerance to heavy metals and were of great significance to the remediation and restoration of heavy metal contaminated soil in lead-zinc mining areas.


2020 ◽  
Vol 4 (80) ◽  
Author(s):  
Oleksii Krainiukov ◽  
◽  
Ivetta Krivicka ◽  
Yuliia Cherkashyna ◽  
◽  
...  

Author(s):  
Dr. Mostafa G. Fadl ◽  
Zenat Kamel Mohamed

Bacteria a Microscopic organisms are the most inexhaustible and flexible of microorganisms and constitute a huge division of the whole living earthly biomass, certain microorganisms were found to amass metallic components at a high limit Was Known as Bacterial Bio-sorption Due to their little size, capacity to become under controlled conditions, and their Accommodation to an extensive variety of ecological situations; Potent metal bio-sorbents among microorganisms, at low pH esteems, cell divider ligands are protonated and contend essentially with metals for official. With expanding pH, more ligands, such as amino and carboxyl groups, could be exposed, leading to attraction between these negative charges and the metals, and consequently increment bio-sorption onto the cell surface. Starting with Isolation and identification of heavy metal-resistant bacteria from rock Ore. Studying Factors Affecting Uranium Bio-sorption, Optimization of bacterial growth conditions and optimum for metal uptake by free and immobilized bacterial cells and Desorption ratio of uranium ions adsorbed by Coli. /alginate, All this evidence suggest that functions groups Represented in our study are responsible for metal uptake in our bacterial biomass beside change in peaks position which assigned for it's groups confirm bio-sorption of metal ions from waste due to ions charge interaction comparing with immobilized we found increase in no of binding sites indicate that immobilized bacterial have high efficiency for metal up take which also change in peaks position which assigned for its groups confirm bio-sorption of metal ions from waste due to ions charge interaction, Where the high bio-sorption yield obtained by bacteria, the Uranium & heavy metal bioremediation process expects microorganisms to be joined to a strong surface.


Author(s):  
AYogeshwari Yadav ◽  
◽  
Ragini Gothalwal ◽  
R.K.Ten guriya

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