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Resistance to and Accumulation of Heavy Metals by Actinobacteria Isolated from Abandoned Mining Areas
Joint Authors
El Baz, Soraia
Baz, Mohamed
Barakate, Mustapha
Hassani, Lahcen
El Gharmali, Abdelhay
Imziln, Boujamâa
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-02-11
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Accumulation of high concentrations of heavy metals in environments can cause many human health risks and serious ecological problems.
Nowadays, bioremediation using microorganisms is receiving much attention due to their good performance.
The aim of this work is to investigate heavy metals resistance and bioaccumulation potential of actinobacteria strains isolated from some abandoned mining areas.
Analysis of mining residues revealed that high concentration of zinc “Zn” was recorded in Sidi Bouatman, Arbar, and Bir Nhass mining residues.
The highest concentration of lead “Pb” was found in Sidi Bouatman.
Copper “Cu,” cadmium “Cd,” and chromium “Cr” were found with moderate and low concentrations.
The resistance of 59 isolated actinobacteria to the five heavy metals was also determined.
Using molecular identification 16S rRNA, these 27 isolates were found to belong to Streptomyces and Amycolatopsis genera.
The results showed different levels of heavy metal resistance; the minimum inhibitory concentration (MIC) recorded was 0.55 for Pb, 0.15 for Cr, and 0.10 mg·mL−1 for both Zn and Cu.
Chemical precipitation assay of heavy metals using hydrogen sulfide technic (H2S) revealed that only 27 isolates have a strong ability to accumulate Pb (up to 600 mg of Pb per g of biomass for Streptomyces sp.
BN3).
American Psychological Association (APA)
El Baz, Soraia& Baz, Mohamed& Barakate, Mustapha& Hassani, Lahcen& El Gharmali, Abdelhay& Imziln, Boujamâa. 2015. Resistance to and Accumulation of Heavy Metals by Actinobacteria Isolated from Abandoned Mining Areas. The Scientific World Journal،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1079111
Modern Language Association (MLA)
El Baz, Soraia…[et al.]. Resistance to and Accumulation of Heavy Metals by Actinobacteria Isolated from Abandoned Mining Areas. The Scientific World Journal No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1079111
American Medical Association (AMA)
El Baz, Soraia& Baz, Mohamed& Barakate, Mustapha& Hassani, Lahcen& El Gharmali, Abdelhay& Imziln, Boujamâa. Resistance to and Accumulation of Heavy Metals by Actinobacteria Isolated from Abandoned Mining Areas. The Scientific World Journal. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1079111
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1079111