Heavy Metals and Antibiotics Resistance of Halophilic Bacteria Isolated from Different Areas in Red Sea, Egypt.
AbdelRahim, K., Soltan, E., Abu-Garbia, M., El-Zien, F. (2014). Heavy Metals and Antibiotics Resistance of Halophilic Bacteria Isolated from Different Areas in Red Sea, Egypt.. EKB Journal Management System, 6(1), 77-89. doi: 10.21608/eajbsg.2014.16632
Khalid A. Ali AbdelRahim; El-Sayed Mohamed Soltan; Magdy A. Abu-Garbia; Fathia El-Zien. "Heavy Metals and Antibiotics Resistance of Halophilic Bacteria Isolated from Different Areas in Red Sea, Egypt.". EKB Journal Management System, 6, 1, 2014, 77-89. doi: 10.21608/eajbsg.2014.16632
AbdelRahim, K., Soltan, E., Abu-Garbia, M., El-Zien, F. (2014). 'Heavy Metals and Antibiotics Resistance of Halophilic Bacteria Isolated from Different Areas in Red Sea, Egypt.', EKB Journal Management System, 6(1), pp. 77-89. doi: 10.21608/eajbsg.2014.16632
AbdelRahim, K., Soltan, E., Abu-Garbia, M., El-Zien, F. Heavy Metals and Antibiotics Resistance of Halophilic Bacteria Isolated from Different Areas in Red Sea, Egypt.. EKB Journal Management System, 2014; 6(1): 77-89. doi: 10.21608/eajbsg.2014.16632

Heavy Metals and Antibiotics Resistance of Halophilic Bacteria Isolated from Different Areas in Red Sea, Egypt.

Egyptian Academic Journal of Biological Sciences, G. Microbiology
Article 8, Volume 6, Issue 1, June 2014, Page 77-89  XML PDF (341.65 K)
Document Type: Original Article
DOI: 10.21608/eajbsg.2014.16632
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Authors
Khalid A. Ali AbdelRahim1; El-Sayed Mohamed Soltan2; Magdy A. Abu-Garbia1; Fathia El-Zien1
1Department of Botany, Faculty of Science, Sohag University, 82524 Sohag, Egypt
2- Department of Botany, Faculty of Science, Sohag University, 82524 Sohag, Egypt - Department of Botany, College of Science, Al-Baha University, Saudi Arabia
Abstract
Hundred and thirty eight (138) bacteria were isolated from 3 different
areas on Red Sea governorate, Egypt. Among these 138 moderately halophilic isolates,
2.17%, 3.6%, 6.5%, 9.4%, and 7.2% of the isolates were resistant up to 5mM Cd2+
and Zn2+ , 20 mM
for Cu2+, Pb2+, and Co2+, respectively. The
majority of halophilic bacterial isolates showed resistance to more than 10 mM
to these metals except Cd2+. All strains were resistant to lead,
whereas 50% only of the strains were resistant to cadmium. The resistance to (Cd2+ + Cu2+); (Zn2+
+ Cu2+) showed the highest values between bacteria (6.5%), whereas
4.34% of the isolated strains were resistant to (Cd2+, Zn2+)
and (Zn2+ + Pb2+), but 2.17% of the isolates were
resistant to 3 metals (Cd2+, Zn2+ , Cu2+); (Zn2+
, Cu2+, Co2); (Cu2+, Co2+, Pb2+)
and resistant to 4 metals (Zn2+ , Cu2+, Co2+,
Pb2+); (Cd2+, Zn2+ Cu2+, Co2);
(Cd2,Zn2+ , Cu2+, Pb2+); (Zn2+,
Pb2+ ,Cu2+, Co2). No bacterial isolates were
resistant to the 5 metals combined. The isolated halophilic bacteria exhibited sharp peaks of
resistance to drugs such as: Velosef 95%, Cceftriaxone, 91.66%, Ampicillin
83.33 %, Nitrofurantion 81.66%, Tarivid 80%, Cephalothin 73.33%, Cephalexin
66.66%, Cefadroxil 83.33%, and Flucloxacillin 85% whereas  few 
isolates (6.6%)  were  resistant 
to  Vancomycin.  
Keywords
Halophilic bacteria; Heavy metals; salts; antibiotics
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