E-ISSN 2090-0503 | ISSN 1687-7497
 

Original Research 


HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA

Manal M. El-Naggar.

Abstract
Sulfate reducing bacteria (SRB) was isolated from marine sediment of Sidi Kerir, Alexandria and selected according to its high tolerance to different heavy metals (Cd2+, Pb2+ and Hg2+), Zn2+ and Cu2+ ions showed high inhibitory effect on the SRB. The results showed that more resistance towards these examined heavy metals was achieved on adjusting the culture medium of SRB at pH 7 and 30˚C and it depends on the type of metal. The minimum inhibitory concentration (MIC) of each heavy metal was determined and the SRB heavy metal tolerance showed a descending order from Hg2+ , Pb2+ , Cd2 , Zn2+ then +Cu2+ ions. Moreover, the tested metals affected the specific growth rate and the total cell protein of the SRB. The obtained results indicated that marine SRB has a high tolerance level (500µM) towards the most toxic heavy metals (Hg2+ and Cd2+ ions) and it is promising to be used in removing not only mercury but also cadmium ions from marine environments.

Key words: SRB, heavy metal, tolerance, marine, Hg2+, Cu2+.


 
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Pubmed Style

Manal M. El-Naggar. HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA . Egypt. J. Exp. Biol. (Bot.). 2009; 5(0): 215-219.


Web Style

Manal M. El-Naggar. HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA . https://www.egyseb.net//?mno=187353 [Access: December 08, 2023].


AMA (American Medical Association) Style

Manal M. El-Naggar. HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA . Egypt. J. Exp. Biol. (Bot.). 2009; 5(0): 215-219.



Vancouver/ICMJE Style

Manal M. El-Naggar. HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA . Egypt. J. Exp. Biol. (Bot.). (2009), [cited December 08, 2023]; 5(0): 215-219.



Harvard Style

Manal M. El-Naggar (2009) HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA . Egypt. J. Exp. Biol. (Bot.), 5 (0), 215-219.



Turabian Style

Manal M. El-Naggar. 2009. HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA . THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 5 (0), 215-219.



Chicago Style

Manal M. El-Naggar. "HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA ." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 5 (2009), 215-219.



MLA (The Modern Language Association) Style

Manal M. El-Naggar. "HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA ." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 5.0 (2009), 215-219. Print.



APA (American Psychological Association) Style

Manal M. El-Naggar (2009) HEAVY METALS REMOVAL BY MARINE SULFATE REDUCING BACTERIA . THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 5 (0), 215-219.