G., A., Refaat, B., Helal, M., Kobisi, A. (2017). Antimicrobial Activities of Some Actinomycete Strains Isolated from the Sinai Egypt Soils. test, 9(3), 21-31. doi: 10.21608/eajbsg.2017.16325
Abdel-Rahman A. G.; B. M. Refaat; M. Helal; A. A. Kobisi. "Antimicrobial Activities of Some Actinomycete Strains Isolated from the Sinai Egypt Soils". test, 9, 3, 2017, 21-31. doi: 10.21608/eajbsg.2017.16325
G., A., Refaat, B., Helal, M., Kobisi, A. (2017). 'Antimicrobial Activities of Some Actinomycete Strains Isolated from the Sinai Egypt Soils', test, 9(3), pp. 21-31. doi: 10.21608/eajbsg.2017.16325
G., A., Refaat, B., Helal, M., Kobisi, A. Antimicrobial Activities of Some Actinomycete Strains Isolated from the Sinai Egypt Soils. test, 2017; 9(3): 21-31. doi: 10.21608/eajbsg.2017.16325

Antimicrobial Activities of Some Actinomycete Strains Isolated from the Sinai Egypt Soils

Egyptian Academic Journal of Biological Sciences, G. Microbiology
Article 3, Volume 9, Issue 3, December 2017, Pages 21-31    PDF (334.22 K)
Document Type: Original Article
DOI: 10.21608/eajbsg.2017.16325
Authors
Abdel-Rahman A. G.1; B. M. Refaat2; M. Helal3; A. A. Kobisi4
1Plant Protection Department, Desert Research Center, Mataria, Cairo, Egypt
2Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt
3Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt.
4Plant Protection Department, Desert Research Center, Mataria, Cairo, Egypt.
Abstract
Seventy three pure actinomycete colonies were isolated
from 48 rhizospheric soil samples revealing different locations in Sinai. These
isolates were tested for their antimicrobial activities against Bacillus
subtilis and Staphylococcus aureus as gram-positive bacteria, Escherichia
coli and Pseudomonas aeruginosa as gram-negative bacteria, Candida
albicans as an unicellular fungi and Aspergillus niger, Aspergillus
flavus, Rhizoctonia solani and Fusarium oxysporum as
filamentous fungi. Isolates S6, S13 and S35 were the most effective
against the tested bacteria and fungi. They had the lowest
Minimum Inhibitory Concentration (MIC) values and showed
the highest and widest spectrum of antibacterial and antifungal activities. Factors
controlling actinomycetes active metabolite(s) productivity were studied.                                                                    
Keywords
antimicrobial activities. Actinomycet. Sinai Egypt
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